Because everyone has been bitching about it, before you proceed to GPU undervolt tutorial, please do a comparison benchmark of Curve Optimizer undervolting vs hard capping clock/voltage undervolting.
Ryzen chips, especially the lower core chips are exceptionally good at undervolting. I left my 5600x at normal clock speeds whilst just lowering voltage. By doing so I managed to get my 5600X to run a R23 run at 4.6GHz with a -300mV undervolt. So whilst under stress it runs normal clock speeds at 990-1.06V. That’s a golden sample.
Do you recall if consumption changed? In my case I can only undervolt by 0.1125 (rock sample?), and it does run R23 at 4.35 instead of 4.0, but the R23 score is very comparable. The only way I can reduce consumption seems to be with fixed speed (e.g. 4000 MHz).
@@danimagfernandesYou can either set a max power draw or use a negative offset for the frequency as well in pbo. I personally did the latter with a very conservative -100mv and it is doing great so far. Max clock speed went down a bit, but the main thing is that the power draw went from 70 to 58 or so and it can still downclock for better idle consumption
Great guide! A few stats for my 5800x in case anyone else is interested. All figures taken from cpuid (NOT the bios, on my msi board, a -0.025v offset resulted in a 0.23v delta!). dynamic boost had it going up to 4.7Ghz at stock, I locked it down to 4.4Ghz, any higher required significantly more voltage. Stock - 1.3v - 145W package - 85c with my custom loop ramping up to full speed - 15200 points in cinebench After - 1.07v - 97W package - 66c with my loop keeping all fans and pumps at minimum - 14900 points I saw my board offered a 95W eco mode under the PBO settings, so thought I'd see if that did any better... PBO 95W - 1.2v - 122W package - 78c with fans ramping up somewhat - 14900 points It did MUCH worse! Thankyou for keeping my PC super silent, even when gaming, I'm going to give your Nvidia underclocking guide a run through later to see if I can save some more power from my 3080ti.
My Mainboard can PBO2, so I take a negative -30 on all cores. Then on all cores -125Mhz (because it boostet to 4.846Ghz on default) so thats on stable 4.716Ghz. PBO Limits disabled. My temps are now 73°C max in Cinebench, from 83-84°C, with NO performance loss. I have the same performance (sometimes a little bit higher then default) In gaming it was before 70-76°C and now ~55°C and 61°C max xDDD Thats so crazy.. Cooling is a 280mm (2x 140mm Fans) Radiator in the top. in front i have 3x 120mm and at the back 1x 120mm for good Airflow. Mainboard is a Gigabyte Aorus Elite V2. Easy Undervolt and 10-15°C better temps xD
I was literally thinking of looking up an undervolt guide this evening! More for the heat output than the electric bill, but saving money is always good. 😁 Looking forward to the graphics card guides as well, for sure!
YOU SAVED MY LIFE. THANK YOU. Brand new Custom build was running over 95C in games and with undervolting .12500 MV is a perfect sweet spot for me. Hovering around 70C while gaming now. Thank you so much.
After watching this tutorial, I somehow managed to get my Ryzen 7 5700X to a voltage of 1 Volt (it occasionally dips beneath a Volt), with a temperature of 35-52 degrees, depending on load, with an average wattage of just under 30 Watts! Thank you so much, now I can actually use my computer in the summer and not have 33 degrees ambient temperature in my room at night!
A tip to those who want to start undervolt/overclock after an upgrade of CPU : Clear CMOS after change of CPU before starting the undervolt/overclock journey. Else you might get unstable error when testing.
The point of this undervolting guide is to save on electricity. You need to set the PPT lower or else the PBO2 algorithm would just push core clocks higher (if there is still thermal headroom) without lowering power usage.
@@mroutcast8515 Little aggressive, but exactly right. This video is a little misinformative, as you *will* get the magic temp decreases, but less so at idle, and you'll lose a lot of performance if you're not slamming the CPU with full load constantly for your daily use case.
Ability to undervolt doesn't necessarily translate to being able to use a cheaper MOBO and/or PSU. Since the quality of the power supplied to the cpu will directly translate to it's ability to hold a stable over/under clock. Cheaper PSUs will have more voltage-sag/dirtier-power and cheaper MOBOs will have fewer power phases. Those will reduce how far you can push things. The method for finding a stable reclock will be the same. You just wont be able to go as far.
Brian, by setting a fixed 4Ghz, you actually increased power in idle. By default your CPU dropped to 3HGhz in idle at ~8W, but when fixed at 4Ghz it consumed ~12W in idle.. It's 4W difference, but it adds up over time, especially if you're like me and never switch off your PC.
@@mikeymaiku Well, if you're saving 23 watts 4 hours in a day, but then wasting 4 watts during other 20 hours, you tell me how much power you saved? Which was the purpose of the video.
@@peki100 your litterally counting fractions of a penny, at some point there is a huge waste in counting this. if you want to save your 4w maybe buy a 10w minipc and just use streaming services for anything gaming related. do you really care your paying a extra 20-30 cents a month because your pc is on? because me mining nonstop on a single rtx 3070 increased my monthly power cast by only 3 dollars, and i am using 150w vs your 4w saved. theres a point where you shouldnt care and highlighting the 4w savings in such a hilarious way makes me just laugh since... yes im sure anyone with a moderate pc can afford 4 watts of consumption on thier monthly power bill.
Been using Bryan's OC tutorial for years. Really helped me setup my XEON E5-1680v2 on an ASUS P9X79 Pro. Temps-voltages...all good and stable (while air cooled) over the last 3 years.
Hi Bryan, i don't have as many settings in my budget bios as in your video. However, I did set a static 1.025v @ 4ghz in my bios and now get ~15c lower temps in games. Combined with an undervolt on my rx 6700xt, I've dramatically lowered system power consumption. Thanks tons for your fantastic tutorial videos.
Quick run down; R7 5800x default PBO + -30(curve optimizer) all core R23 score = ~15700-15800 @ 142W, ~82C (~20Cish ambient) Locked the core clock to 4.6Ghz @ 1.2V R23 score = ~15500-15600 @ 108W, ~68C Almost 25% less power for 2% less performance. You can't beat that by lowering the PPT.
Video is unfortunately many months old, but still just want to thank you for this excellent guide. My newest 7700-build is great, but was running a bit hot and frequently pushing the fan-noise a bit more than I wanted. Now the temperatures have gone down a lot, so the fans are extremely quiet in game as well, and against all logic, gaming experience and all tested benchmarks are still as good as before. Double upvote.
I spent a couple hours with the curve optimiser on my 5900X system and had pretty good results. Went from the ludicrous 200 watts @ 85 celcius my Aorus master was pumping in to 145 watts @60 celcius and kept all the performance.
@@Lord_Ralph It is more an overclock. With less voltage you get higher clocks until the core limit. PBO Limits are a wall, so it kinds of hold voltages and consumption. But yes it is a great way to get some performance with the same consumption.
That's crazy efficient. Although 4ghz is a little low for my 5700x and 4060ti combo. I pushed it to 4.55 @1.15v and it sips around 60w while gaming, stays at 60°C. I love these processors 2 years later
Hi I have a Ryzen 5700x aswell and I have high temps on some games. What did u set the core ratio to exactly as the vid shows 40.00 and how much voltage did u take away in the bios?
Games nowadays don't push the CPUs almost at all. Did you try stress tests for the cores? With 1.15V I can only achieve around 4350Mhz on full stress without getting any errors or resets. This on my 5600X. I run mine at 0.9V @3800Mhz for everything I do or 1.05V @4200Mhz when I game.
@@Sam_Bush These CPUS truly benefit from a good CPU-Cooler in case you want results. As I said above, mine runs at 4200Mhz full stressing cores with 1.05V and temps don't ever go above 60C. The original CPU-Cooler wasn't only noisy, but when you want results, it really throttles the CPU itself since it was going easily above 90C when I was trying 4400Mhz only with 1.2V. Nowadays, the smaller the lithography of the CPU, the more you're going to benefit from a good cooler. Also, you don't need an expensive one. Do a little research. The "Assassin" gives amazing results for a decent price. Easily outperforms extremely expensive coolers. Do your research, buy smartly.
I got amazing result following yor video. I have the same cpu ryzen 5500. My scores on cinebench are 10002 after undervolting by 0.200 . And the temps went down from 92 degrees to 71 with the stock cooler.
Ryzen Master has the curve optimizer tool to do UV(=less power and temps) without losing performance. In order to consume less power, it is even easier to just power limit the CPU in the BIOS down to 45W (minimum) and keep the high single core boost. For Intel or old AMD CPUs though, this type of UV you showed in the video is the best one.
@@IM_MOUNTAIN Agreed! I lowered the figures Ryzen Master CO test per core suggested by 2 for the higher ones, iow the -30 to -28, -29 to -27 and system is stable.
@@giorx5 After watching this video (because I have an unstable system at high load) and reading the comments, I tried the BIOS fix, but have a GIGABYTE Aurus Elite x570 motherboard and all the settings are in different places and maybe not labelled the same as in the Asus, so I scrapped that idea and just moved the Curve Optimiser to -5. Mainly because the CPU not supported in Ryzen Master as well. So far I passed all the stress tests in OCTT, and 4 hours in a game that crashed after 2 or 3. Crazy - I was thinking maybe the PSU was getting spikes in power draw and was/am thinking of swapping for a £200 upgerade with 1200W (nerly twice the recommended). but maybe it's all because of AMD/Gigasbyte settings that are too close to the edge of stability? Time will tell.
Been rocking a 5800x for about 8 months, and when I first got put it in I was hitting 90C stock in CB20 on an NH-D15S. Figured out it was the setting's the mobo was applying (B450 Tomahawk Max). I messed around with PBO, and max was 85C-86C. Upgraded to an X570 Unify, and stock found its Mobo settings to be almost exactly what my PBO settings were on the B450, and again hitting 86C max. Leaving everything stock, except RAM profile, I added a negative voltage offset of .1V, and allowed the CPU to boost to whatever with that voltage offset. I did try lower voltages, but I started to get clock stretching, and my performance dropped considerably. With the .1V (-) offset temps are down to 72C max, using 20 less watts, and actually didn't lose any performance in CB20. Still boost to 4.8Ghz single core as well, but is much quieter doing so. lol Before while gaming, the 5800x was running louder and hotter on the NH-D15 than the 3080 12GB I got a couple of weeks ago. I checked paste and reseated the cooler a couple of times now, and came to the conclusion this thing just runs kinda warm. With the undervolt, on both the CPU and GPU, I hope it helps to keep my room a little cooler through this west Texas summer, but in the winter I do have my "heater" settings. lol
Aright, been experimenting a little more, and got my settings about locked it. I locked my 5800X to 4.6Ghz @ 1.29375V (Any lower and it was unstable) Scored 80 points less than my best score in CB20, while using 40W less power, and maxing at 67C from 86-87C. I think I'll take that trade off! Thanks for the video to help provide a little more understanding about how to extract the most out of these chips.
Managed to undervolt my 5600g using your method (4.1ghz -200mv), and an ffmpeg benchmark encode comparison.... 5600g auto = 1330.86s (33.02 fps) 5600g u/v = 1348.19s (32.60 fps) Meanwhile my temperatures from stock cooler went from 77 deg C to 55 deg C. Perfect! I'm using Linux for this, but in windows i did notice i've shaved off ~ 30-35watts power at load. I think the idle watts were less noticable,, i'm not sure if it's placebo, but it seemed to idle from 20-25w, down to 15-20w. I will probably check this later with power drawn from the wall and see what the difference is there, but i'm pretty happy with the performance gains, thanks :)
I want to thank you because I knew very little about over and underclocking for the e past year. I’ve been running my CPU at 85 to 90 Celsius for the last year. I am now getting 68-70 degrees as well as better performance with my ryzen 5 5600X. I am also getting a significant degrease in power consumption, going from 75W down to around 45W
Relatively small decreases in voltage can improve temperatures greatly. If you totally lost the silicon lottery even 40mv can help more towards cooling than switching to thermal grizzly kryonaut as a thermal interface.
I have to disagree, setting the clockspeed to a fixed value on modern Zen CPU's is just simply bad advice because it disables PBO boosting entirely. You claim at 27:11 that it's a "very minor drop in performance... only 2 to 3%", but you choose to leave out any game, browser, or lightly threaded workload comparisons that would contradict you. This comes off as lazy. There has been tons of documentation showing how good undervolting is on Ryzen, but your method... not so much. If your goal is simply power reduction you can adjust the EDC/PPT/TDC values for PBO and that will achieve the same sort of results while leaving the boost algorithm to do its thing. Similar power savings can also be achieved without losing any performance by undervolting and not touching the clockspeed as almost all Ryzen 3000/5000 series that I've seen can achieve around a 0.1 - 0.15v~ negative offset without much effort and in some cases you can gain performance because you reduce power(+heat) and allow the CPU to have more headroom to boost if it needs to. There are other methods like the Curve optimizer but those are not generally recommended for novice users.
exactly - games never load the CPU anywhere close to 100% so they take huge advantage of clock boost. I don't need lower power draw or temps on my R5 5600 so I just optimized for higher boost within stock PPT, TDC and EDC. Per core optimized undervolt curve, +200MHz max boost offset. Now in games it basically holds 4.65GHz (up from 4.45GHz stock at the same power draw), while in Cinebench R23 multicore is only about 4.35GHz (which can be obviously overcome by increasing stock power limits). If someone wants to reduce power draw (tho 30W will be still pennies in yearly bill) or temps - then do what I did and simply lower PPT limit to 50W. Then, with lighter workloads CPU will still boost higher than the stock but will never exceed PPT limit.
I was wondering why he wasn''t touching PBO at all? I thought maybe undervolting didn't play nice with it? But can you just keep PBO on and try a lower offset voltage while letting PBO do it's thing? Or is it even worth it?
@@IdiotRace I tried PBO along with undervolting and it caused some issues like CPUID could no longer detect my cores and Ryzen Master refused to load. For me at least it seems like one or the other but not both. (5600G)
Managed to get a stable undervolt on my ryzen 9 5900x on Asus x570 mini itx mb to -0.100 mv. Max temps just under 60c with cores running at 62.44 W, package at 102.98 W which is about a 20% reduction. Not bad. Will keep these settings until I get a bsod. Cinebench 23 gave me a score of 19448* about a 2% drop. Fantastic tip and much appreciated ☺️👍
@@mindrover777 hi mindrover777, I basically followed Yes Tech City's instructions using the first modest settings he described. Good luck with your attempt 👍
I have a 5800X undervolt -0.15 and power curve optimizer -15 =13136 multicore score. Down from 15113 max score but Temps maxed out at 65 with 30 min stability test. Temps was around 80 before.
This is awesome! but there's nothing more frustrating or envious, than going in excited with undorvolting and then realizing your cpu is below average in terms of silicon lottery lol
Thanks a lot. I've been trying multiple ways to undervolt my Ryzen 5900x and only yours gave me a successful result : - 15 degrees, - 40 watt (0.1 offset was the limit for me but it's quite efficient). Cheers from France !
I used PBO with around 100mv offset, and manually limited power. CPU runs 100MHz faster all core, with ~20% less power. A note on cheap power supplies. They are likely to have higher voltage ripple, which makes undervolts more unstable. I also tend to get instability at idle, or after stopping a test so it is important to test all scenarios, and bump up voltage slightly if you have intermittent crashes.
Crashes probably because you didn’t reset cmo’s after messing with your memory timings. This is why you don’t watch dorks on TH-cam with failed IT careers talk you into electrical engineering. AMD fabric clocks by default are meant for sustainability. You can have a 5.0ghz oc but use 5 watts on idle. You are actually down tiering performance under volts, vs playing with voltage delivery. You are probably also using more power To render lighter work loads.
If baseclock is enough for you, most Zen 2 and 3 CPU's can be undervolted to use around 50% power vs stock settings. Works wonders with my Ryzen 9 3950X (16c/32t CPU using 80W @max load, and running cool). Baseclock is plenty for most. I Can't feel any difference, other than my fans running silently, and not spinning up/down on dynamic CPU loads.
From day one, I under-volted my Ryzen 9 3900X on an Asrock X570 Taichi MB, and it clocks all core at 4 GHz @ 1.1 vdc. Stable for nearly 2 years now. Runs cool with my Be Quiet Dark Rock Pro 4 and runs at full load at about 53 C.
In my case i did not want to lose any performance but while drawing the same or less power: My final result with Ryzen 5 5600 (NON X) is: -0.075v at 4.3ghz, so... i only lose boost (around 140/150mhz), but the normal clock speed when rendering (wich was 4.25ghz at stock settings) ramped to 4.3... Finally, my score was higher, around 300 points, my power draw was less, about 15W peak and same draw or less at idle, and my temps are 8°C less (max). Nice and easy to follow tips in your video, i dont want to lose any performance in my case but its amazing what you can get with little tweaking in voltage mainly.
On my ryzen 5700X I have managed to set 4.2Ghz @ 1.05V. I advise you to use OCCT, it is more aggressive than cinebench. With cinebench it had no errors up to 1.02V, but with occt it did, because this is more aggressive stressing the CPU.
I think undervolting with a slight underclock is the greatest thing to do to CPU's GPU's in desktops and in laptops too...especially in laptops, if you don't care about a few FPS loss that is probably unnoticeable anyway.
Why the points were going slightly higher is that the CPU build in boost curve by AMD can boost longer on lower temperatures. This is what all extreme overclockers do to achieve higher points, longer boost times are the hidden performance gem.
My older Zen2 Ryzen 9 3900X crashed at -0.15V offset undervolting at stock clock but runs stable at -0.1V offset. Left the clock alone to let the CPU ramp up the speed on demand as usual. Cinebench gave me 18400 points, not that bad for a system I build 2 1/2 years ago :)
That is indeed very helpfull video , thank . Cant wait to try it on my CPU . Just one question . Is it necessary to lower the CPU frequency to try this method ?
A shortcut can be created to go directly to the UEFI from the desktop. This is what to copy and paste: shutdown /r /fw /f /t 0 To shut down the PC normally (with fast boot): shutdown /s /hybrid /t 0 You change the icon to one you like and that's it.
Thank you for this video. I've been lucky enough to lower my 5900x voltage from 1.500 by a .20 offset. Seems very stable so far. Idle temp is about 43C. Thanks again!
2700x is quite a power hog, isnt it hahah ive been running it since 2018, beautiful cpu with its performance being to able to run full blast even on low-end mobos
Did this via a -30 curve optimizer value on all cores with my 5500. I get 4450 MHz all core short boost with 4400 (give or take about 30mhz) maintained over the duration of a workload. Power draw ranges between 50-55 watts under an all-core workload. I probably have a golden sample, but do give it a try if you want to keep temps down during the summer.
@@RifterDask That's awesome.I only asked because most reviews only talk about one of the other, never optimizing both. I will give it a go and see how it works out
I'm switching from PBO to your method after watching this. Locked my 7600x to 5.2ghz all core at 1.2v (from 1.25) with a 100mv offset as well. Seems stable. Cinebench is just about as fast as with PBO boosting to 5.45ghz, but my power draw went from around 100w to 75w and temps are cooler. Should be snappier overall locked at 5.2 versus boosting between 4-5.4 GHz... Idle power draw maybe went up a few watts, but nothing crazy. I'm pretty happy with 75w and high 50's temps at 5.2ghz.
Love your channel Brian, learned alot over here👍Now if you are not as lazy and buissy 😉 like for example me, i would suggest a per core undervolt with a 12 core CPU. You will need a core booster programm and the same programms Brian used to check the core clocks. What you basically do is you go into BIOS > AMD Overclock > Precisionboost Overdrive > Advanced > Coreoptimiser > per core > you will set all cores to negative. At this point you can start to undervolt each core in -1 mV increments and work your way towards the -30 mV max. You will do this for every single core. You need the Booster Software to boost the specific core you are working with. Your clockspeed will go up by decreasing voltage and eventually you will reach the point your clocks start to drop and thats the sign you decreased to much voltage and you have to apply back voltage. 4 days 11 cores and 276 gray hairs later you will get hungry and ask yourself.. WHY AM I DOING THIS TO MYSELF.. 🤣🤣🤣
On Ryzen you can change PPT to get lower total power draw, even though it's not technically undervolting it can help with temperatures in a similar way. You can also change the number of active cores (I forget what the setting is called) but it doesn't really improve power draw unless you're running less than half of the cores active.
Good that i found your video, it was dificult for me to undertsant because the other videos were with another bios, but with you i did understand it and it improved my temperatures amazingly
I have been searching to find out the idle power consumption of the Ryzen 5 5500 (or similar CPU) for days now without much success. I've read numerous written reviews also watched some other similar videos, and nothing. Now I just wanted to check how I can try to tune in some additional power saving settings, but I also found what I was looking for (package power ~10W or even less). So it seems the idle is pretty good on this R5 5500, my R3 3100 consumes more than 2 times that in Energy saving mode (~25W) which is already down from the normal mode(30+ W, way too much imho), so I guess this means it makes sense for me to buy an R5 5500 to save on energy bills. Great video, thanks.
Nice to see this video. Everyone else seems focused on best performance and not factoring cost. I'm more focused on how can i get the performance i want for the lowest possible cost in terms of electric and parts cost. Personally i am happy with High>Max out settings at 1080p 60fps. Or Med/High (with a few settings higher/lower like shadow quality and RTX,, DLSS maybe even) to get 4k 60fps. I want this kinda performance at a lower cost as possible. I don't care for 144hz 1440p or going over 60fps at 4k. Like most people i rock a 1080p monitor. If i want to go higher resolution ill swap output to the 4k TV and kick back. If i do that its in games that above 60fps really dont matter.
Thank you very much! I'm running a 5950x on a NH-15. before: 1.475V 73º with fans at 100% 3.7MHz 24207 points (multi core) after: 0.987V 60º with fans at 75% 3.6MHz 23.712 points (2.04% drop)
Great tutorial video. Laid everything out nice and simple! Honestly, so few resources that are short sweet and to the point these days. And many written articles are either outdated or a bit wrong (usually just on user forums). My GPU is undervolted and now, after watching this, my CPU will be too. Next adventure is the RAM timings which I want to bring down a little if I'm able...
Pretty good guide and it's not too far off of how i do it. I still usually leave the multiplier to Auto and as others have said, pretty much just maxing out the negative curve optimizer will boost the multi-core score. I also go for the max PBO core boost clock (+200) on these lower end Ryzens. I just rebuilt my sons computer using the 5600 and it's rock-solid and only consuming around 70W at max boost. My only other recommendation is to also undervolt the SOC. You don't get as much benefit as you do optimizing the vcore but if you're in for a penny, might as well be in for the pound. I'd also like to see you take a stab at a DRAM tuning guide. I am currently running through tuning my 5800X3D and the uplift in graphics performance is pronounced (350 point delta in Timespy). My aggressive 3200 Mhz tuning (CL13+very low sub-timings) is currently outperforming the 4000Mhz profile I had setup previously (CL17+ not quite as tightly tuned sub-timings) and the lower RAM speed has the benefit of requiring you to pump less voltage into the SOC. It might be too much for a video since there are SOO many sub-timings to modify but you can streamline the tuning by just using so simple shortcuts (like only dropping by 1 on single digit timings, 2 on timings in the 10-20 range and so on).
Pro tip: most boards support booting directly into BIOS through Windows Advanced Startup. You can initiate this through holding SHIFT while clicking Restart on your PC (or through Windows Settings > System > Recovery > Advanced Startup). Once the 'Choose an option' menu appears > select Troubleshoot > Advanced options > UEFI Firmware Settings. This will boot you directly into your BIOS without having to spam F2/delete and potentially missing it on boot.
I did the same a month ago at 3900x my Mother board is Taichi 570x, it has an environment choice to use much less energy. I first downgrade PCIs, turned off the lightning and from cooler, don't forget your PCIs in my case 4th gen. For GPU i picked up old 1660 super, i had 3 monitors ultra wide 34' i left the one. Unplug anything SATA you don't need... if any i recommend not downgrade them, just unplug them from power. Summer here with 34c temp the CPU at benches like R23 before CPU going at 85c or more and the pc shutting down after the changes and power save profile in windows i repeat the tests i didn't say super differences at scores the max the cpu temp that reached in stress test was 42c max, My watt gadget at my power plug it consumed before all these 600watts now it says 190watts - 210watts.
I undervolted my R7 2700X with an offset of -0.11250V and saved 43W at max while running Cinebench 20, went from 133W to 90W. The score went from 3762 to 3718 so its hardly any perf drop. My CPU max temp went from 79C to 62C. this was the limit with my system though, any less voltage and it wouldn't post.
I had a PBO 2 curve optimization undervolt, which worked a bit hot but fine for a long time, because of many different reasons I recently encountered more heat problems which made it pretty unstable. Now I just turned off PBO 2 and did some undervolting as in the video ("dynamic vcore" in gigabyte BIOS). Quite a significant drop in Cinebench r23 (15000 to 14000) but in the few games I tested so far the performance drop is basically not noticeable and with way better temps. Works great. Thanks.
Thanx, finally got my 5900x undervolt manually to my needs (low power, intensive CPU use). Curve optimise was useless in my case. Ive set PBO disabled, manually set offset -0,05 (0,1 was not stable)4.2GHz 115W power consumption. BTW testing undervolting in static full throttle conditions could be ok (like in my case), but playing game is different story, GPU can spike as well, lowering rail voltage and left no headroom for undervoulted CPU. All depend of use and needs :)
My 10900k was around 1.3-1.4 load voltage out of the box. I set static voltage to 1.34 @ 5.1GHZ all core (before vdroop - so 1.288v on load), 4.9ghz cache. Dropped from 90 to 60 degrees average in games and had a much better all core frequency. Though i lost 200mhz single thread which doesnt really matter to me.
Whoever’s reading this, I pray that whatever your going through gets better and whatever your struggling with or worrying about is going to be fine and that everyone has a fantastic day! Amen-
I had no access to PBO setting in bios so my option was to use pbotuner which doesnt retain settings between reboot. I only ever had to undervolt gpus so i was so lost. You really demystified the process. Thank you. My cpu is cool and happy in my shoe box sized PC case.
Amazing video, nicely detailed! Even a novice like me got through it with better temps & power consumption. Added bonus exact same bios. Running almost 10c cooler on aio & stable
It's 3% on multicore, but check difference on single core, because that's what matters in games. Also fixing core clock is not power efficient, like someone above said it's gonna increase your idle power consumption, so you are not decreasing power consumption by 33%. I follow your channel for a long time and love your videos, but this one is misleading, especially for beginners, and I have to totally disagree on your approach here, this is not right way to do it. You would be much better off with playing with PBO and curve optimizer, where you can use CO to underclock same way you did here without losing core clock speed.
Unless you disable all power management and c-states cores with no load still go to sleep, even with fixed clock. Also, getting a stable overclock with a curve optimizer is a royal pain in the ass, it likes to crash when you're doing absolutely nothing.
I have 5800x cooled with cm hyper212 rgb. Max temp at 100%load is 83c and thats on summer inside the h510 elite case... Without the front panel its 80c. I didnt do anything with the settings
@@alxnd_r6345 I get about 85c at full load pretty quickly with the same hyper212 cooler (non RGB here ;)) with just the stock fans of the Lian Li 011 air mini, inside at summertime. Would be nice to have about 70c at full load, IMO, which I am sure we can achieve. Can TechYes do this for us?
@@MMBaconslice I dont think its possible with any cooler other than custom loop. Even the dark rock pro will get above 70c at 100% usage. Only problem i have with cm212 is that its too loud. I keep it at 50% all the time.
i did this for my 5900x, it doesn't even reach 60c anymore running cinebench 5 passes in a row. 0.98v 4.1ghz all core. Still within spitting distance of PBO all core with literally 30-40c lower temps and half the power usage. As for the lacking single thread, i am not convinced it's worth much if only 1 or 2 cores can boost to 4.9. Most new games use more than 2 cores and old games run on almost anything.
thank you for this... yes undervolting is a must specially on 5800x3d, here are my stats for reference. 5800x3d pbo2 cinebench 23 Aorus master b550 4x8gb 3400mhz, added 200mhz on clock, didnt touch the voltage, and called it a day. will probably study how to overclock further. 3080 Aorus Xtreme Waterforce Custom water loop 14200 stock 118w 92.5c 14117 -5mv 118w 89-91c 14334 -15mv 113w 86c 14396 -18mv 112w 84c 14444 -20mv 110w 82-83c 14434 -25mv 109w 81-82c 14492 -26mv 108w 81c 14552 -27mv 109w 80c 14329 -30mv 105w 78c I initially got a higher score in -25, 14790 but couldn't replicate it... Will probably settle for -27mv. also getting higher score on 2x8gb rams also did undervolting on my 3080, 900mv 1900mhz, +1000mhz on memory... getting 1945mhz ,350w down to 270w... still using my 650w psu hehehe...
Tech yes’s method is actually easier to tune than PBO2 because in PBO2 you not only shifts the frequency-voltage mapping but also tilt it. The “tilt-ness” is represented by the “-30” number. Tilting the curve might make the CPU stable at full load but might not be stable at any mid workload (e.g. games) when frequency is switching rapidly. This is extremely hard to tune (even more so with “per core” setting). Not only that without switching C-state your cpu response is quicker.
@@SiCSpiT1 yes that is exactly a premium feature in ASUS Corsair 8 hero motherboard and that board is expensive. You can’t do this in normal board. For that premium feature, it will go manual oc with all core workloads to maximize all core boost clock speed and use pbo2 in single core workload to maximize single core boost clock
@@SiCSpiT1 ok, so in frequency voltage curve pbo2 tilts the curve exponentially (the pbo -30 offset). If you add or substract voltage you essentially shifts the x axis (voltage) left and right. So if you don’t get stable enough in auto (0) voltage offset in pbo2 you either crashing pc ( reduce voltage) or generating too much heat (add voltage) whereby reducing pbo2 boost clock. That is because pbo2 boost under the triangle thing… the heat, voltage, tdp something like that I can’t remember
@@gabrielwong1991 it's ppt tdc and edc. I use the pbo and the pbo offset for awhile now, but lately I'm investing if it's a good idea use pbo with a manual voltage offset. I haven't had much success today because I recently upgraded my mobo and haven't fully wrapped my head around this asrock bios yet.
17:00 this part made me feel so much better about my pc. I got the 5800X and I was always at like 55-60c idle but my Gaming temps were spot on stock, so I changed my negative offset to - 0.3 from 1.42V and the 0.3 was purple and I read it was bad but you helped clarify that for me. Now I get idle temps of 35-40c with a 20c room temp. (even with the undervolt my gaming temps and performance are still great I know you mentioned undervolting decreased performance but at this point I just want a stable PC haha. It runs faster than my old cpu, 1500X so Im happy lol
I just had my 5800x and having the same idle temps and with load it can reach up to 80c. i'll try undervolting soon and hopefully get a better temp. It's scary to see high temp on idle 😂
I use a program called HYDRA made by the guy who made the Ryzen DRAM calculator. Hated seeing my 5900X pull 110W while playing GPU-limited games. Configured it to pull about 75-80W instead. For me, it's more to control temps and for it to be more efficient than longevity, but they go hand in hand
Careful! Depending on the Mobo & BIOS version outcome may be drastically different! On most other mobos changing the Core Ratio will set OC Mode and lock the Multiplier to the selected value which is bad for idle power consumption. Also undervolting by Offset voltage without locking the Multiplier will NOT WORK on Ryzen 5000 because the CPU will adjust the requested voltage by the same amount and negate any undervolting effects! In that case it is best to use the PBO Curve Optimizer in the BIOS PBO options and set a negative value like -20.
I'm getting same temps, same consumption, with Offset voltage without locking the multiplier - like you said. Only way to lower consumption is to set (and I guess automatically lock?) the Core Ratio. Is that how it's supposed to work out on a 5600x? In any case, PBO Curve Optimizer at -20 also doesn't lower anything, only increases MHz, but it does improve R23 results than any other setting combo I tried.
@@danimagfernandes There should be a setting like Max. Boost Override if you set this to 0 it should force the CPU to stay in the stock boost table and lower the voltage. Thats how it works on my Asrock mobo at least...
I know they can't prove it, but does undervolting also void warrenty like over clocking? and i'm not sure if this is true but i think with overclocking over time you have to increase voltage to maintain those high over clocks due to chip degradation, was wondering if underclocking was the same, where you would have to slightly increase voltage to maintain the underclocks over time? Love your content keep up the great work :)
A CPU can absolutely record voltages, they also do "wetness" and short-circuit detection, they can also prove it! Where is this idea of degradation coming from, there isn't much of that occurring in consumer grade CPU's. CPU's are very HIGH quality and they're durable. CPU's would make an automaker cry in their Wheaties if cars and CPU's were routinely compared. What happens with undervoltages is the chip-level logic gate(s) may 'fault' - miss a bit, and in that case it returns (what may be) an incorrect result. Software has no defense for incorrect values so then, it may march on unaware, or it may lock up and/or crash. It's pretty simple. To avoid that problem use enough voltage to "push" the transistors with reliability.
@@SISSYPUSS oh wow, good to know, thanks for that explaination :) i would love to watch something explaining how manufacturers prove these things, but i would asume they would be trade secrets, but would make a great video :)
I've set my 3700x at -0.075v, left the clocks on auto, running like this for over 2 years now. Even cinebench score is better than the one with default settings. 0.1v on the other hand was slightly too much, wasn't getting crashes but the cinebench score was much lower than the one at 0.075v. Temperatures are much more stable, not getting weird spikes like with the voltage set to auto so it's definitely worth to try it;)
Great tutorial, undervoltong is really handy in sff cases aswell, when you can't fit a large cooler. Although alot of sff now supports aios. Would love some insight from you on the curve optimizer feature on amd cpus aswell.
My Buddy got a Ryzen 5000X and a RTX 3070Ti and I was insanely amazed how smooth and beautiful games looked and played at 1440P Ultra max setting at 300fps. Really nice setup..
Bonjour, très intéressant cet undervolting, tu as vraiment un super processeur. Tu es un des heureux gagnant de la loterie du silicium. Je vais voir ce que donne mon Ryzen 5700X mais je suppose que je planterai bien avant les - 0.200mV. Merci et à bientôt. Bonne journée.😉👍 PS : as tu essayé avec le PBO dans une autre vidéo pour voir si tu pouvais affiner encore plus tes réglages déjà extraordinaires ?
I gained points on mine. From 1233 to 1373 on cinebench 2024. Temps max went from 95 max to peaking at 77.5 volts from 1.49 to 1.056 max at the .1 difference. Amps max at 99 instead of like 137. Ryzen 9 5950x. Major win
My friend, only way to effective UV Ryzen 5000, with minimal loss of performance is: - without turning on XMP, got to AMD Overclock, Curve Optimizer, Set per Core, Negative and start with -30 on every core. Test system stability with OCCT and correct, when some error appear, try -25, -20 etc after each error for some core. That will allow for higher boosting, that will be usefull for next step - PPT - depending on your CPU, you should find online best results for PPT, EDC, TDC. PPT stands for Package Power Tracking, EDC is Electrical Design Current (and is major for performance), and TDC is Thermal Design Current . PPT and TDC have major impact for power consumption and temperatures, while EDC also have impact for temps and power, should not be lowered too much than default values (~10A, depend of CPU of user) - Now you can enter BIOS and enable XMP for RAM. And choose FCLK, then UCLK==MEMCLK. That is very important, last step. If you have 3600Mhz RAM, set FCLK to 1800Mhz, and UCLK==MEMCLK - your CPU will run in synchronized mode (1:1:1). Lastly after setting, testing everything up, you can lower CPU SOC voltage to 0.95 - 0.97 as XMP profiles tends to raise this voltage a lot.
Ryzen 5 5600G Before (Stock): 4.4GHZ / 1.34V / 77.6 C / 71.2 W / 9769 Pts Ryzen 5 5600G After (TYC UV) : 4.0GHZ / 1.18V / 62.4 C / 52.1 W / 9472 Pts Thanks a lot! Now I can uninstall Ryzen Master in Peace!
It's not that much harder at all. Latest Ryzen Master can calculate and suggest value to input for per core CO. It's pretty much no brainer at all. It's still a good practice to do a stress testing for their suggested values though. Especially if the PC is being used for important non-gaming workload.
@@araisikewai I didnt know that, good to know. Tuning the offsets manually per core takes time to achieve stability. I've had to reset my bios settings so I've done it twice and both times I was getting BSODs at idle for at least a few weeks. At least if you want the absolute max undervolt.
@@RyugaHidekiOrRyuzaki If you have previously upgraded CPU using the same motherboard, make sure to clear CMOS. There might be some redundant setting from previous CPU hidden somewhere that affect your current setting. I had that problem where it keeps throwing out error when I stress test them whatever I did, even on default. One clear CMOS later, it resolve the issue. Also, it's better to have per core CO because most likely the best core already in very tight setting and can't accept high offset. While the other cores can still accept looser setting. My 5600X for example has a setting of -10, -17, -28, -23, -29, -15 I haven't stress test this one, though I have stress test on all core -15 without error for 1 hour duration.
Disable turbo boost? Laptops with a discrete GPU often share the heatsink with the CPU. So I used to disable turbo boost to help with heat (or buy laptops with an I-5 that didn't have turbo boost). Nowadays, with desktop CPUs pushed to the limit, it still makes perfect sense to disable turbo boost. If AMD BIOS doesn't have a one-click solution, just lower the ratio to the base clock. You can still undervolt it for even cooler running. Then if you plan to run a game or program that requires more oomph, you can always change the BIOS setting back for more performance.
Great video and guide. Thorough and very easy to follow. I’ve got a question though. I just bought a 5800X (cooled by my trusty old Noctua NH-D15) that i’ve paired with my MSI B550-A Pro motherboard. If i don’t want to downclock the ”CPU Core Ratio” is there something else i should do or can i just skip that step in the Bios and still follow this guide, maybe don’t lower the ”VDDR CPU Offset Voltage” as much? Thanks in advance/ Isak
Surprised not one person mentioned that we remove the latency penalty incurred by circumventing dynamic boost.... Enjoy!
I did notice that you were pushing the BIOS flashback on the back of the motherboard which is not the clear CMOS.
Because everyone has been bitching about it, before you proceed to GPU undervolt tutorial, please do a comparison benchmark of Curve Optimizer undervolting vs hard capping clock/voltage undervolting.
Better latency without turbo boost?
@@richardfarmer6570 Yeah I saw that too. This is my first time on this channel, and that in particular got me worried.
@@araisikewai yeah I think that's the best way too. Will make that happen.
Ryzen chips, especially the lower core chips are exceptionally good at undervolting. I left my 5600x at normal clock speeds whilst just lowering voltage. By doing so I managed to get my 5600X to run a R23 run at 4.6GHz with a -300mV undervolt. So whilst under stress it runs normal clock speeds at 990-1.06V. That’s a golden sample.
Do you recall if consumption changed? In my case I can only undervolt by 0.1125 (rock sample?), and it does run R23 at 4.35 instead of 4.0, but the R23 score is very comparable.
The only way I can reduce consumption seems to be with fixed speed (e.g. 4000 MHz).
@@danimagfernandesYou can either set a max power draw or use a negative offset for the frequency as well in pbo. I personally did the latter with a very conservative -100mv and it is doing great so far. Max clock speed went down a bit, but the main thing is that the power draw went from 70 to 58 or so and it can still downclock for better idle consumption
How much drop in temp?
Thank you for this! I did not see on any of these videos if I could keep the speed at stock ratio. Thanks to your comment I know I can.
I just did that and did a open benchmark test is says performing below expectations
Great guide!
A few stats for my 5800x in case anyone else is interested. All figures taken from cpuid (NOT the bios, on my msi board, a -0.025v offset resulted in a 0.23v delta!). dynamic boost had it going up to 4.7Ghz at stock, I locked it down to 4.4Ghz, any higher required significantly more voltage.
Stock - 1.3v - 145W package - 85c with my custom loop ramping up to full speed - 15200 points in cinebench
After - 1.07v - 97W package - 66c with my loop keeping all fans and pumps at minimum - 14900 points
I saw my board offered a 95W eco mode under the PBO settings, so thought I'd see if that did any better...
PBO 95W - 1.2v - 122W package - 78c with fans ramping up somewhat - 14900 points
It did MUCH worse!
Thankyou for keeping my PC super silent, even when gaming, I'm going to give your Nvidia underclocking guide a run through later to see if I can save some more power from my 3080ti.
Thanks for this info!
So your core voltage is 1.07 and your cpu ratio is 44x right ? Interesting, I will try it on my rig to see how it turns out
My Mainboard can PBO2, so I take a negative -30 on all cores. Then on all cores -125Mhz (because it boostet to 4.846Ghz on default) so thats on stable 4.716Ghz. PBO Limits disabled.
My temps are now 73°C max in Cinebench, from 83-84°C, with NO performance loss. I have the same performance (sometimes a little bit higher then default)
In gaming it was before 70-76°C and now ~55°C and 61°C max xDDD Thats so crazy.. Cooling is a 280mm (2x 140mm Fans) Radiator in the top. in front i have 3x 120mm and at the back 1x 120mm for good Airflow. Mainboard is a Gigabyte Aorus Elite V2. Easy Undervolt and 10-15°C better temps xD
I was literally thinking of looking up an undervolt guide this evening! More for the heat output than the electric bill, but saving money is always good. 😁 Looking forward to the graphics card guides as well, for sure!
YOU SAVED MY LIFE. THANK YOU. Brand new Custom build was running over 95C in games and with undervolting .12500 MV is a perfect sweet spot for me. Hovering around 70C while gaming now. Thank you so much.
After watching this tutorial, I somehow managed to get my Ryzen 7 5700X to a voltage of 1 Volt (it occasionally dips beneath a Volt), with a temperature of 35-52 degrees, depending on load, with an average wattage of just under 30 Watts!
Thank you so much, now I can actually use my computer in the summer and not have 33 degrees ambient temperature in my room at night!
I have the same CPU. it does not let me drop to .15 as well xd but damn! a lot of decrease from 78 to only 55W!
Can you share the parameters of your config please?. I need to compare something. Thanks...
What's the point of posting only power and thermal number without performance stats. You can unplug the PC and it draws 0 Watt.
What voltage and frenquency plz ?
@@mr.mok7I have my ryzen 5700x running 42.75@1.050v
A tip to those who want to start undervolt/overclock after an upgrade of CPU :
Clear CMOS after change of CPU before starting the undervolt/overclock journey.
Else you might get unstable error when testing.
So, setting UEFI to default is not enough?
The real deal is: PBO2 in "Advanced" > set PBO limits to "off" > then open Curve Optimizer, set negative curve and try to get stability starting by 30
The point of this undervolting guide is to save on electricity. You need to set the PPT lower or else the PBO2 algorithm would just push core clocks higher (if there is still thermal headroom) without lowering power usage.
@@ailluinthethyra6139 then you fucking set PPT limit to 50W or so, jeez... and still get massive boost clocks in lower workloads, like gaming.
@@mroutcast8515 Little aggressive, but exactly right. This video is a little misinformative, as you *will* get the magic temp decreases, but less so at idle, and you'll lose a lot of performance if you're not slamming the CPU with full load constantly for your daily use case.
Is Curve optimizer only on Zen3?
Set it to 25 still crash.. 20 still crash.. 15 still like stock nothing special.. did i do wrong way?
Ability to undervolt doesn't necessarily translate to being able to use a cheaper MOBO and/or PSU. Since the quality of the power supplied to the cpu will directly translate to it's ability to hold a stable over/under clock. Cheaper PSUs will have more voltage-sag/dirtier-power and cheaper MOBOs will have fewer power phases. Those will reduce how far you can push things. The method for finding a stable reclock will be the same. You just wont be able to go as far.
@AmpEdition - Drawing less low quality power doesnt change the quality of the power.
Brian, by setting a fixed 4Ghz, you actually increased power in idle. By default your CPU dropped to 3HGhz in idle at ~8W, but when fixed at 4Ghz it consumed ~12W in idle.. It's 4W difference, but it adds up over time, especially if you're like me and never switch off your PC.
Damn dude 4watts
@@mikeymaiku Well, if you're saving 23 watts 4 hours in a day, but then wasting 4 watts during other 20 hours, you tell me how much power you saved? Which was the purpose of the video.
4W 0-24 means 35kWh a year. 35kWh charge with an EV means 290km - 160km travel distance. 35kWh means ~ 3500 slice of baked toast bread. :)
what do you expect when this guide is on the level of The Verge PC building guide? 😏😂 - YES , that's how bad this guide is.
@@peki100 your litterally counting fractions of a penny, at some point there is a huge waste in counting this. if you want to save your 4w maybe buy a 10w minipc and just use streaming services for anything gaming related.
do you really care your paying a extra 20-30 cents a month because your pc is on? because me mining nonstop on a single rtx 3070 increased my monthly power cast by only 3 dollars, and i am using 150w vs your 4w saved. theres a point where you shouldnt care and highlighting the 4w savings in such a hilarious way makes me just laugh since... yes im sure anyone with a moderate pc can afford 4 watts of consumption on thier monthly power bill.
Been using Bryan's OC tutorial for years. Really helped me setup my XEON E5-1680v2 on an ASUS P9X79 Pro. Temps-voltages...all good and stable (while air cooled) over the last 3 years.
Hi Bryan, i don't have as many settings in my budget bios as in your video. However, I did set a static 1.025v @ 4ghz in my bios and now get ~15c lower temps in games. Combined with an undervolt on my rx 6700xt, I've dramatically lowered system power consumption. Thanks tons for your fantastic tutorial videos.
Quick run down; R7 5800x default PBO + -30(curve optimizer) all core R23 score = ~15700-15800 @ 142W, ~82C (~20Cish ambient)
Locked the core clock to 4.6Ghz @ 1.2V R23 score = ~15500-15600 @ 108W, ~68C
Almost 25% less power for 2% less performance. You can't beat that by lowering the PPT.
Video is unfortunately many months old, but still just want to thank you for this excellent guide. My newest 7700-build is great, but was running a bit hot and frequently pushing the fan-noise a bit more than I wanted. Now the temperatures have gone down a lot, so the fans are extremely quiet in game as well, and against all logic, gaming experience and all tested benchmarks are still as good as before. Double upvote.
I spent a couple hours with the curve optimiser on my 5900X system and had pretty good results. Went from the ludicrous 200 watts @ 85 celcius my Aorus master was pumping in to 145 watts @60 celcius and kept all the performance.
Pretty huge bump in efficiency there
Curve Optimiser is the best way to undervolt Ryzen.
@@Lord_Ralph It is more an overclock. With less voltage you get higher clocks until the core limit. PBO Limits are a wall, so it kinds of hold voltages and consumption. But yes it is a great way to get some performance with the same consumption.
That's crazy efficient. Although 4ghz is a little low for my 5700x and 4060ti combo. I pushed it to 4.55 @1.15v and it sips around 60w while gaming, stays at 60°C. I love these processors 2 years later
Hi I have a Ryzen 5700x aswell and I have high temps on some games. What did u set the core ratio to exactly as the vid shows 40.00 and how much voltage did u take away in the bios?
Games nowadays don't push the CPUs almost at all. Did you try stress tests for the cores? With 1.15V I can only achieve around 4350Mhz on full stress without getting any errors or resets. This on my 5600X. I run mine at 0.9V @3800Mhz for everything I do or 1.05V @4200Mhz when I game.
@@Sam_Bush These CPUS truly benefit from a good CPU-Cooler in case you want results. As I said above, mine runs at 4200Mhz full stressing cores with 1.05V and temps don't ever go above 60C. The original CPU-Cooler wasn't only noisy, but when you want results, it really throttles the CPU itself since it was going easily above 90C when I was trying 4400Mhz only with 1.2V. Nowadays, the smaller the lithography of the CPU, the more you're going to benefit from a good cooler. Also, you don't need an expensive one. Do a little research. The "Assassin" gives amazing results for a decent price. Easily outperforms extremely expensive coolers. Do your research, buy smartly.
@@Gyneco-Phobia Hi is my CPU cooler good enough. I got a nzxt 240mm kraken aio.
I got amazing result following yor video. I have the same cpu ryzen 5500.
My scores on cinebench are 10002 after undervolting by 0.200 . And the temps went down from 92 degrees to 71 with the stock cooler.
You mah boy! 😘
Ryzen Master has the curve optimizer tool to do UV(=less power and temps) without losing performance. In order to consume less power, it is even easier to just power limit the CPU in the BIOS down to 45W (minimum) and keep the high single core boost. For Intel or old AMD CPUs though, this type of UV you showed in the video is the best one.
Unfortunately RM doesn't work on laptops:/
@@IM_MOUNTAIN Agreed! I lowered the figures Ryzen Master CO test per core suggested by 2 for the higher ones, iow the -30 to -28, -29 to -27 and system is stable.
@@giorx5 What CPU do you have, as I found, earlier today, that Ryzen Master does not support the Ryzen 5500.
@@bigj1454 I have a Ryzen 5 5600.
@@giorx5 After watching this video (because I have an unstable system at high load) and reading the comments, I tried the BIOS fix, but have a GIGABYTE Aurus Elite x570 motherboard and all the settings are in different places and maybe not labelled the same as in the Asus, so I scrapped that idea and just moved the Curve Optimiser to -5. Mainly because the CPU not supported in Ryzen Master as well. So far I passed all the stress tests in OCTT, and 4 hours in a game that crashed after 2 or 3. Crazy - I was thinking maybe the PSU was getting spikes in power draw and was/am thinking of swapping for a £200 upgerade with 1200W (nerly twice the recommended). but maybe it's all because of AMD/Gigasbyte settings that are too close to the edge of stability? Time will tell.
Of 79-82°C to 57-59°C on ryzen 5600 whit cooler stock. Thanks. Reallt good video.
The performance is more stable now. No fps drops.
Been rocking a 5800x for about 8 months, and when I first got put it in I was hitting 90C stock in CB20 on an NH-D15S. Figured out it was the setting's the mobo was applying (B450 Tomahawk Max). I messed around with PBO, and max was 85C-86C. Upgraded to an X570 Unify, and stock found its Mobo settings to be almost exactly what my PBO settings were on the B450, and again hitting 86C max. Leaving everything stock, except RAM profile, I added a negative voltage offset of .1V, and allowed the CPU to boost to whatever with that voltage offset. I did try lower voltages, but I started to get clock stretching, and my performance dropped considerably. With the .1V (-) offset temps are down to 72C max, using 20 less watts, and actually didn't lose any performance in CB20. Still boost to 4.8Ghz single core as well, but is much quieter doing so. lol Before while gaming, the 5800x was running louder and hotter on the NH-D15 than the 3080 12GB I got a couple of weeks ago. I checked paste and reseated the cooler a couple of times now, and came to the conclusion this thing just runs kinda warm. With the undervolt, on both the CPU and GPU, I hope it helps to keep my room a little cooler through this west Texas summer, but in the winter I do have my "heater" settings. lol
Aright, been experimenting a little more, and got my settings about locked it. I locked my 5800X to 4.6Ghz @ 1.29375V (Any lower and it was unstable) Scored 80 points less than my best score in CB20, while using 40W less power, and maxing at 67C from 86-87C. I think I'll take that trade off! Thanks for the video to help provide a little more understanding about how to extract the most out of these chips.
Managed to undervolt my 5600g using your method (4.1ghz -200mv), and an ffmpeg benchmark encode comparison....
5600g auto = 1330.86s (33.02 fps)
5600g u/v = 1348.19s (32.60 fps)
Meanwhile my temperatures from stock cooler went from 77 deg C to 55 deg C. Perfect! I'm using Linux for this, but in windows i did notice i've shaved off ~ 30-35watts power at load. I think the idle watts were less noticable,, i'm not sure if it's placebo, but it seemed to idle from 20-25w, down to 15-20w. I will probably check this later with power drawn from the wall and see what the difference is there, but i'm pretty happy with the performance gains, thanks :)
I have a R7 5700x and I've set my voltage to -0.102mv.
Got around 13k in Cinebench.
Temps around 50's and the performance is amazing. Thanks!!!
whats is the total power draw and will all 8 cores still function well in editing videos bro?
I want to thank you because I knew very little about over and underclocking for the e past year. I’ve been running my CPU at 85 to 90 Celsius for the last year. I am now getting 68-70 degrees as well as better performance with my ryzen 5 5600X.
I am also getting a significant degrease in power consumption, going from 75W down to around 45W
Did you set all core ratio to 40 (4.0ghz) like his or let it auto (which is 3.8ghz base clock and 4.6ghz boost clock)?
@@hquan1 went from 4.6 default down to 4.0 like his
Relatively small decreases in voltage can improve temperatures greatly. If you totally lost the silicon lottery even 40mv can help more towards cooling than switching to thermal grizzly kryonaut as a thermal interface.
I have to disagree, setting the clockspeed to a fixed value on modern Zen CPU's is just simply bad advice because it disables PBO boosting entirely. You claim at 27:11 that it's a "very minor drop in performance... only 2 to 3%", but you choose to leave out any game, browser, or lightly threaded workload comparisons that would contradict you. This comes off as lazy.
There has been tons of documentation showing how good undervolting is on Ryzen, but your method... not so much. If your goal is simply power reduction you can adjust the EDC/PPT/TDC values for PBO and that will achieve the same sort of results while leaving the boost algorithm to do its thing. Similar power savings can also be achieved without losing any performance by undervolting and not touching the clockspeed as almost all Ryzen 3000/5000 series that I've seen can achieve around a 0.1 - 0.15v~ negative offset without much effort and in some cases you can gain performance because you reduce power(+heat) and allow the CPU to have more headroom to boost if it needs to. There are other methods like the Curve optimizer but those are not generally recommended for novice users.
exactly - games never load the CPU anywhere close to 100% so they take huge advantage of clock boost. I don't need lower power draw or temps on my R5 5600 so I just optimized for higher boost within stock PPT, TDC and EDC. Per core optimized undervolt curve, +200MHz max boost offset. Now in games it basically holds 4.65GHz (up from 4.45GHz stock at the same power draw), while in Cinebench R23 multicore is only about 4.35GHz (which can be obviously overcome by increasing stock power limits). If someone wants to reduce power draw (tho 30W will be still pennies in yearly bill) or temps - then do what I did and simply lower PPT limit to 50W. Then, with lighter workloads CPU will still boost higher than the stock but will never exceed PPT limit.
I was wondering why he wasn''t touching PBO at all? I thought maybe undervolting didn't play nice with it? But can you just keep PBO on and try a lower offset voltage while letting PBO do it's thing? Or is it even worth it?
@@IdiotRace I tried PBO along with undervolting and it caused some issues like CPUID could no longer detect my cores and Ryzen Master refused to load. For me at least it seems like one or the other but not both. (5600G)
You're right
His method is not optimal but still okey for low end mobos with stock cooler
Managed to get a stable undervolt on my ryzen 9 5900x on Asus x570 mini itx mb to -0.100 mv.
Max temps just under 60c with cores running at 62.44 W, package at 102.98 W which is about a 20% reduction. Not bad. Will keep these settings until I get a bsod.
Cinebench 23 gave me a score of 19448* about a 2% drop.
Fantastic tip and much appreciated ☺️👍
I had basically the same results with my 5900X and the same settings thats amazing
That's fantastic. Could you explain the steps to achieve this
@@mindrover777 hi mindrover777,
I basically followed
Yes Tech City's instructions using the first modest settings he described. Good luck with your attempt 👍
@@joviliro thanks 👍
I have a 5800X undervolt -0.15 and power curve optimizer -15 =13136 multicore score. Down from 15113 max score but Temps maxed out at 65 with 30 min stability test. Temps was around 80 before.
This is awesome! but there's nothing more frustrating or envious, than going in excited with undorvolting and then realizing your cpu is below average in terms of silicon lottery lol
Thanks a lot. I've been trying multiple ways to undervolt my Ryzen 5900x and only yours gave me a successful result : - 15 degrees, - 40 watt (0.1 offset was the limit for me but it's quite efficient).
Cheers from France !
I used PBO with around 100mv offset, and manually limited power. CPU runs 100MHz faster all core, with ~20% less power. A note on cheap power supplies. They are likely to have higher voltage ripple, which makes undervolts more unstable. I also tend to get instability at idle, or after stopping a test so it is important to test all scenarios, and bump up voltage slightly if you have intermittent crashes.
Crashes probably because you didn’t reset cmo’s after messing with your memory timings. This is why you don’t watch dorks on TH-cam with failed IT careers talk you into electrical engineering. AMD fabric clocks by default are meant for sustainability. You can have a 5.0ghz oc but use 5 watts on idle. You are actually down tiering performance under volts, vs playing with voltage delivery. You are probably also using more power To render lighter work loads.
If baseclock is enough for you, most Zen 2 and 3 CPU's can be undervolted to use around 50% power vs stock settings. Works wonders with my Ryzen 9 3950X (16c/32t CPU using 80W @max load, and running cool). Baseclock is plenty for most. I Can't feel any difference, other than my fans running silently, and not spinning up/down on dynamic CPU loads.
From day one, I under-volted my Ryzen 9 3900X on an Asrock X570 Taichi MB, and it clocks all core at 4 GHz @ 1.1 vdc. Stable for nearly 2 years now. Runs cool with my Be Quiet Dark Rock Pro 4 and runs at full load at about 53 C.
ha ace! this is my set up, good to know
4 ghz all the time?
@@mindrover777 Turbo is higher... 4.6Ghz
In my case i did not want to lose any performance but while drawing the same or less power:
My final result with Ryzen 5 5600 (NON X) is: -0.075v at 4.3ghz, so... i only lose boost (around 140/150mhz), but the normal clock speed when rendering (wich was 4.25ghz at stock settings) ramped to 4.3...
Finally, my score was higher, around 300 points, my power draw was less, about 15W peak and same draw or less at idle, and my temps are 8°C less (max).
Nice and easy to follow tips in your video, i dont want to lose any performance in my case but its amazing what you can get with little tweaking in voltage mainly.
On my ryzen 5700X I have managed to set 4.2Ghz @ 1.05V. I advise you to use OCCT, it is more aggressive than cinebench. With cinebench it had no errors up to 1.02V, but with occt it did, because this is more aggressive stressing the CPU.
I’m consciously decoupling from tech and consumption right now. Appreciate that your vids are value conscious.
I knew of a fella who did the same. His first name was Ted. I think his last name began with a K.
I think undervolting with a slight underclock is the greatest thing to do to CPU's GPU's in desktops and in laptops too...especially in laptops, if you don't care about a few FPS loss that is probably unnoticeable anyway.
Setting maximum CPU power state to 99% on battery to disable boost clocks makes the world of difference to battery life.
@@jimtekkit This doesn’t work on my desktop running a 5800X.
@@christophervanzetta It should work don't know why you would.
Why the points were going slightly higher is that the CPU build in boost curve by AMD can boost longer on lower temperatures.
This is what all extreme overclockers do to achieve higher points, longer boost times are the hidden performance gem.
the clock was fixed dude
This is how misinformation is spread.
My older Zen2 Ryzen 9 3900X crashed at -0.15V offset undervolting at stock clock but runs stable at -0.1V offset. Left the clock alone to let the CPU ramp up the speed on demand as usual. Cinebench gave me 18400 points, not that bad for a system I build 2 1/2 years ago :)
That is indeed very helpfull video , thank . Cant wait to try it on my CPU . Just one question . Is it necessary to lower the CPU frequency to try this method ?
A shortcut can be created to go directly to the UEFI from the desktop.
This is what to copy and paste: shutdown /r /fw /f /t 0
To shut down the PC normally (with fast boot): shutdown /s /hybrid /t 0
You change the icon to one you like and that's it.
Thank you for this video. I've been lucky enough to lower my 5900x voltage from 1.500 by a .20 offset. Seems very stable so far. Idle temp is about 43C. Thanks again!
Went from 190W on my Ryzen 2700x to 130W. Thanks man.
Keep it up!
OC : @ 4Ghz, offset -0.1250V.
2700x is quite a power hog, isnt it hahah
ive been running it since 2018, beautiful cpu with its performance being to able to run full blast even on low-end mobos
Great results, looking forward to the Alder Lake testing.
thanks for the video ! cant wait for the rest !!! so excited !
Did this via a -30 curve optimizer value on all cores with my 5500. I get 4450 MHz all core short boost with 4400 (give or take about 30mhz) maintained over the duration of a workload. Power draw ranges between 50-55 watts under an all-core workload.
I probably have a golden sample, but do give it a try if you want to keep temps down during the summer.
Has it been stable since you've done both undervolt?
@@markhosein3899 Yep. No issues.
@@RifterDask That's awesome.I only asked because most reviews only talk about one of the other, never optimizing both. I will give it a go and see how it works out
I'm switching from PBO to your method after watching this. Locked my 7600x to 5.2ghz all core at 1.2v (from 1.25) with a 100mv offset as well. Seems stable. Cinebench is just about as fast as with PBO boosting to 5.45ghz, but my power draw went from around 100w to 75w and temps are cooler. Should be snappier overall locked at 5.2 versus boosting between 4-5.4 GHz... Idle power draw maybe went up a few watts, but nothing crazy.
I'm pretty happy with 75w and high 50's temps at 5.2ghz.
Love your channel Brian, learned alot over here👍Now if you are not as lazy and buissy 😉 like for example me, i would suggest a per core undervolt with a 12 core CPU. You will need a core booster programm and the same programms Brian used to check the core clocks.
What you basically do is you go into BIOS > AMD Overclock > Precisionboost Overdrive > Advanced > Coreoptimiser > per core > you will set all cores to negative. At this point you can start to undervolt each core in -1 mV increments and work your way towards the -30 mV max. You will do this for every single core. You need the Booster Software to boost the specific core you are working with. Your clockspeed will go up by decreasing voltage and eventually you will reach the point your clocks start to drop and thats the sign you decreased to much voltage and you have to apply back voltage. 4 days 11 cores and 276 gray hairs later you will get hungry and ask yourself.. WHY AM I DOING THIS TO MYSELF.. 🤣🤣🤣
On Ryzen you can change PPT to get lower total power draw, even though it's not technically undervolting it can help with temperatures in a similar way. You can also change the number of active cores (I forget what the setting is called) but it doesn't really improve power draw unless you're running less than half of the cores active.
Good that i found your video, it was dificult for me to undertsant because the other videos were with another bios, but with you i did understand it and it improved my temperatures amazingly
I have been searching to find out the idle power consumption of the Ryzen 5 5500 (or similar CPU) for days now without much success. I've read numerous written reviews also watched some other similar videos, and nothing. Now I just wanted to check how I can try to tune in some additional power saving settings, but I also found what I was looking for (package power ~10W or even less). So it seems the idle is pretty good on this R5 5500, my R3 3100 consumes more than 2 times that in Energy saving mode (~25W) which is already down from the normal mode(30+ W, way too much imho), so I guess this means it makes sense for me to buy an R5 5500 to save on energy bills. Great video, thanks.
Omg,Bryan that's the reason I've been followin' you all the time.This kind of videos.Regards from Serbia!
Nice to see this video. Everyone else seems focused on best performance and not factoring cost. I'm more focused on how can i get the performance i want for the lowest possible cost in terms of electric and parts cost. Personally i am happy with High>Max out settings at 1080p 60fps. Or Med/High (with a few settings higher/lower like shadow quality and RTX,, DLSS maybe even) to get 4k 60fps. I want this kinda performance at a lower cost as possible. I don't care for 144hz 1440p or going over 60fps at 4k. Like most people i rock a 1080p monitor. If i want to go higher resolution ill swap output to the 4k TV and kick back. If i do that its in games that above 60fps really dont matter.
Still playing on 1080/60 and talking trash about 1440 144hz
ULTRA LOL
That depends. If you have a 60 hz monitor , all good. If game is uncapped, it's not a good experience.
Thank you very much! I'm running a 5950x on a NH-15.
before:
1.475V
73º with fans at 100%
3.7MHz
24207 points (multi core)
after:
0.987V
60º with fans at 75%
3.6MHz
23.712 points (2.04% drop)
what u write at the bios settings? please help
Great tutorial video. Laid everything out nice and simple! Honestly, so few resources that are short sweet and to the point these days. And many written articles are either outdated or a bit wrong (usually just on user forums).
My GPU is undervolted and now, after watching this, my CPU will be too. Next adventure is the RAM timings which I want to bring down a little if I'm able...
Pretty good guide and it's not too far off of how i do it. I still usually leave the multiplier to Auto and as others have said, pretty much just maxing out the negative curve optimizer will boost the multi-core score. I also go for the max PBO core boost clock (+200) on these lower end Ryzens. I just rebuilt my sons computer using the 5600 and it's rock-solid and only consuming around 70W at max boost. My only other recommendation is to also undervolt the SOC. You don't get as much benefit as you do optimizing the vcore but if you're in for a penny, might as well be in for the pound.
I'd also like to see you take a stab at a DRAM tuning guide. I am currently running through tuning my 5800X3D and the uplift in graphics performance is pronounced (350 point delta in Timespy). My aggressive 3200 Mhz tuning (CL13+very low sub-timings) is currently outperforming the 4000Mhz profile I had setup previously (CL17+ not quite as tightly tuned sub-timings) and the lower RAM speed has the benefit of requiring you to pump less voltage into the SOC. It might be too much for a video since there are SOO many sub-timings to modify but you can streamline the tuning by just using so simple shortcuts (like only dropping by 1 on single digit timings, 2 on timings in the 10-20 range and so on).
Pro tip: most boards support booting directly into BIOS through Windows Advanced Startup. You can initiate this through holding SHIFT while clicking Restart on your PC (or through Windows Settings > System > Recovery > Advanced Startup). Once the 'Choose an option' menu appears > select Troubleshoot > Advanced options > UEFI Firmware Settings. This will boot you directly into your BIOS without having to spam F2/delete and potentially missing it on boot.
I did the same a month ago at 3900x my Mother board is Taichi 570x, it has an environment choice to use much less energy. I first downgrade PCIs, turned off the lightning and from cooler, don't forget your PCIs in my case 4th gen. For GPU i picked up old 1660 super, i had 3 monitors ultra wide 34' i left the one. Unplug anything SATA you don't need... if any i recommend not downgrade them, just unplug them from power. Summer here with 34c temp the CPU at benches like R23 before CPU going at 85c or more and the pc shutting down after the changes and power save profile in windows i repeat the tests i didn't say super differences at scores the max the cpu temp that reached in stress test was 42c max, My watt gadget at my power plug it consumed before all these 600watts now it says 190watts - 210watts.
I undervolted my R7 2700X with an offset of -0.11250V and saved 43W at max while running Cinebench 20, went from 133W to 90W. The score went from 3762 to 3718 so its hardly any perf drop. My CPU max temp went from 79C to 62C. this was the limit with my system though, any less voltage and it wouldn't post.
I had a PBO 2 curve optimization undervolt, which worked a bit hot but fine for a long time, because of many different reasons I recently encountered more heat problems which made it pretty unstable.
Now I just turned off PBO 2 and did some undervolting as in the video ("dynamic vcore" in gigabyte BIOS).
Quite a significant drop in Cinebench r23 (15000 to 14000) but in the few games I tested so far the performance drop is basically not noticeable and with way better temps.
Works great. Thanks.
Witch cpu did you use?
@@JaggersMusic R7 5800X
Thanx, finally got my 5900x undervolt manually to my needs (low power, intensive CPU use). Curve optimise was useless in my case. Ive set PBO disabled, manually set offset -0,05 (0,1 was not stable)4.2GHz 115W power consumption. BTW testing undervolting in static full throttle conditions could be ok (like in my case), but playing game is different story, GPU can spike as well, lowering rail voltage and left no headroom for undervoulted CPU. All depend of use and needs :)
My 10900k was around 1.3-1.4 load voltage out of the box. I set static voltage to 1.34 @ 5.1GHZ all core (before vdroop - so 1.288v on load), 4.9ghz cache. Dropped from 90 to 60 degrees average in games and had a much better all core frequency. Though i lost 200mhz single thread which doesnt really matter to me.
Whoever’s reading this, I pray that whatever your going through gets better and whatever your struggling with or worrying about is going to be fine and that everyone has a fantastic day! Amen-
Born-again-crytpo-miner, per chance?
I had no access to PBO setting in bios so my option was to use pbotuner which doesnt retain settings between reboot. I only ever had to undervolt gpus so i was so lost. You really demystified the process. Thank you. My cpu is cool and happy in my shoe box sized PC case.
this is a good indicator that cinebench is not that heavy of a workload
Amazing video, nicely detailed! Even a novice like me got through it with better temps & power consumption.
Added bonus exact same bios. Running almost 10c cooler on aio & stable
great content as always 👏
It's 3% on multicore, but check difference on single core, because that's what matters in games. Also fixing core clock is not power efficient, like someone above said it's gonna increase your idle power consumption, so you are not decreasing power consumption by 33%. I follow your channel for a long time and love your videos, but this one is misleading, especially for beginners, and I have to totally disagree on your approach here, this is not right way to do it. You would be much better off with playing with PBO and curve optimizer, where you can use CO to underclock same way you did here without losing core clock speed.
Unless you disable all power management and c-states cores with no load still go to sleep, even with fixed clock. Also, getting a stable overclock with a curve optimizer is a royal pain in the ass, it likes to crash when you're doing absolutely nothing.
Can you please link a good guide to do that? Thank you.
Is PBO available for 3000 series?
Reading my mind; just got a 5800x and a 6700xt and I want to undervolt both. Awesome idea for a serie of videos!
I have 5800x cooled with cm hyper212 rgb. Max temp at 100%load is 83c and thats on summer inside the h510 elite case... Without the front panel its 80c. I didnt do anything with the settings
@@alxnd_r6345 I get about 85c at full load pretty quickly with the same hyper212 cooler (non RGB here ;)) with just the stock fans of the Lian Li 011 air mini, inside at summertime. Would be nice to have about 70c at full load, IMO, which I am sure we can achieve. Can TechYes do this for us?
@@MMBaconslice I dont think its possible with any cooler other than custom loop. Even the dark rock pro will get above 70c at 100% usage. Only problem i have with cm212 is that its too loud. I keep it at 50% all the time.
Same here. 85 degree on max load. Did you manage to undervolt it?
@@mindrover777 im getting 90 at cinebench. Seems like its heavier than cpuz stress test. But its very hot now. It would be 85 usually
You have such a soothing voice, I'm straight but I would still prefer hearing yours than rougher voices. :) Plus great content!
i did this for my 5900x, it doesn't even reach 60c anymore running cinebench 5 passes in a row. 0.98v 4.1ghz all core. Still within spitting distance of PBO all core with literally 30-40c lower temps and half the power usage. As for the lacking single thread, i am not convinced it's worth much if only 1 or 2 cores can boost to 4.9. Most new games use more than 2 cores and old games run on almost anything.
thank you for this... yes undervolting is a must specially on 5800x3d, here are my stats for reference.
5800x3d pbo2 cinebench 23
Aorus master b550
4x8gb 3400mhz, added 200mhz on clock, didnt touch the voltage, and called it a day. will probably study how to overclock further.
3080 Aorus Xtreme Waterforce
Custom water loop
14200 stock 118w 92.5c
14117 -5mv 118w 89-91c
14334 -15mv 113w 86c
14396 -18mv 112w 84c
14444 -20mv 110w 82-83c
14434 -25mv 109w 81-82c
14492 -26mv 108w 81c
14552 -27mv 109w 80c
14329 -30mv 105w 78c
I initially got a higher score in -25, 14790 but couldn't replicate it... Will probably settle for -27mv. also getting higher score on 2x8gb rams
also did undervolting on my 3080, 900mv 1900mhz, +1000mhz on memory... getting 1945mhz ,350w down to 270w...
still using my 650w psu hehehe...
Thank you so much..
My 5700g is cold as ice now.. Running amazing with 0,2 whatever...
My PC with an R7 5800x was hitting 70 - 80c on Insurgency, followed this and now it hasn't gone above 60. Thank you.
Tech yes’s method is actually easier to tune than PBO2 because in PBO2 you not only shifts the frequency-voltage mapping but also tilt it. The “tilt-ness” is represented by the “-30” number. Tilting the curve might make the CPU stable at full load but might not be stable at any mid workload (e.g. games) when frequency is switching rapidly. This is extremely hard to tune (even more so with “per core” setting).
Not only that without switching C-state your cpu response is quicker.
Why not do both?
@@SiCSpiT1 yes that is exactly a premium feature in ASUS Corsair 8 hero motherboard and that board is expensive. You can’t do this in normal board.
For that premium feature, it will go manual oc with all core workloads to maximize all core boost clock speed and use pbo2 in single core workload to maximize single core boost clock
@@gabrielwong1991 I meant using PBO2 and offsetting the voltage.
@@SiCSpiT1 ok, so in frequency voltage curve pbo2 tilts the curve exponentially (the pbo -30 offset). If you add or substract voltage you essentially shifts the x axis (voltage) left and right. So if you don’t get stable enough in auto (0) voltage offset in pbo2 you either crashing pc ( reduce voltage) or generating too much heat (add voltage) whereby reducing pbo2 boost clock. That is because pbo2 boost under the triangle thing… the heat, voltage, tdp something like that I can’t remember
@@gabrielwong1991 it's ppt tdc and edc. I use the pbo and the pbo offset for awhile now, but lately I'm investing if it's a good idea use pbo with a manual voltage offset.
I haven't had much success today because I recently upgraded my mobo and haven't fully wrapped my head around this asrock bios yet.
Thanks for this video Brian. I have a 5500 I've yet to install so I'll follow this in the future.
17:00 this part made me feel so much better about my pc. I got the 5800X and I was always at like 55-60c idle but my Gaming temps were spot on stock, so I changed my negative offset to - 0.3 from 1.42V and the 0.3 was purple and I read it was bad but you helped clarify that for me. Now I get idle temps of 35-40c with a 20c room temp. (even with the undervolt my gaming temps and performance are still great
I know you mentioned undervolting decreased performance but at this point I just want a stable PC haha. It runs faster than my old cpu, 1500X so Im happy lol
I just had my 5800x and having the same idle temps and with load it can reach up to 80c. i'll try undervolting soon and hopefully get a better temp. It's scary to see high temp on idle 😂
@@ziggycustodio same here with 5900x, doing this now until I can get better (and quieter) cooling for it
Will this work is in 5600h ?
You've gotten better than a golden sample. You have a god tier mini chip.
I use a program called HYDRA made by the guy who made the Ryzen DRAM calculator. Hated seeing my 5900X pull 110W while playing GPU-limited games. Configured it to pull about 75-80W instead. For me, it's more to control temps and for it to be more efficient than longevity, but they go hand in hand
Careful! Depending on the Mobo & BIOS version outcome may be drastically different! On most other mobos changing the Core Ratio will set OC Mode and lock the Multiplier to the selected value which is bad for idle power consumption. Also undervolting by Offset voltage without locking the Multiplier will NOT WORK on Ryzen 5000 because the CPU will adjust the requested voltage by the same amount and negate any undervolting effects! In that case it is best to use the PBO Curve Optimizer in the BIOS PBO options and set a negative value like -20.
I just went with minus 16 pbo settings and called it a day...
I'm getting same temps, same consumption, with Offset voltage without locking the multiplier - like you said. Only way to lower consumption is to set (and I guess automatically lock?) the Core Ratio. Is that how it's supposed to work out on a 5600x? In any case, PBO Curve Optimizer at -20 also doesn't lower anything, only increases MHz, but it does improve R23 results than any other setting combo I tried.
@@danimagfernandes There should be a setting like Max. Boost Override if you set this to 0 it should force the CPU to stay in the stock boost table and lower the voltage. Thats how it works on my Asrock mobo at least...
@@florianthomas546, to use with the PBO curve optimizer, correct?
@@danimagfernandes Yes.
I know they can't prove it, but does undervolting also void warrenty like over clocking? and i'm not sure if this is true but i think with overclocking over time you have to increase voltage to maintain those high over clocks due to chip degradation, was wondering if underclocking was the same, where you would have to slightly increase voltage to maintain the underclocks over time? Love your content keep up the great work :)
A CPU can absolutely record voltages, they also do "wetness" and short-circuit detection, they can also prove it! Where is this idea of degradation coming from, there isn't much of that occurring in consumer grade CPU's. CPU's are very HIGH quality and they're durable. CPU's would make an automaker cry in their Wheaties if cars and CPU's were routinely compared. What happens with undervoltages is the chip-level logic gate(s) may 'fault' - miss a bit, and in that case it returns (what may be) an incorrect result. Software has no defense for incorrect values so then, it may march on unaware, or it may lock up and/or crash. It's pretty simple. To avoid that problem use enough voltage to "push" the transistors with reliability.
@@SISSYPUSS oh wow, good to know, thanks for that explaination :) i would love to watch something explaining how manufacturers prove these things, but i would asume they would be trade secrets, but would make a great video :)
I have a r9 5900x and followed some of these steps and lowered by cores to 4.10ghz and under volted -100, temps dropped 25c. Unreal!!!
I've set my 3700x at -0.075v, left the clocks on auto, running like this for over 2 years now. Even cinebench score is better than the one with default settings. 0.1v on the other hand was slightly too much, wasn't getting crashes but the cinebench score was much lower than the one at 0.075v. Temperatures are much more stable, not getting weird spikes like with the voltage set to auto so it's definitely worth to try it;)
Great tutorial, undervoltong is really handy in sff cases aswell, when you can't fit a large cooler. Although alot of sff now supports aios. Would love some insight from you on the curve optimizer feature on amd cpus aswell.
My Buddy got a Ryzen 5000X and a RTX 3070Ti and I was insanely amazed how smooth and beautiful games looked and played at 1440P Ultra max setting at 300fps.
Really nice setup..
Ryzen 5000x can be anything in that generation lol
Bonjour, très intéressant cet undervolting, tu as vraiment un super processeur. Tu es un des heureux gagnant de la loterie du silicium. Je vais voir ce que donne mon Ryzen 5700X mais je suppose que je planterai bien avant les - 0.200mV.
Merci et à bientôt. Bonne journée.😉👍
PS : as tu essayé avec le PBO dans une autre vidéo pour voir si tu pouvais affiner encore plus tes réglages déjà extraordinaires ?
Going to try. Thanks
Good guide, like from Brazil!
We need more "how to" videos like this straight from your desktop ! 👍
lol, electricity prices here in Norway have 10x-ed (except for in the north) since 2020, so this is mighty relevant here you could say!
I gained points on mine. From 1233 to 1373 on cinebench 2024. Temps max went from 95 max to peaking at 77.5 volts from 1.49 to 1.056 max at the .1 difference. Amps max at 99 instead of like 137. Ryzen 9 5950x. Major win
Thank u, this was incredibely helpful.
My friend, only way to effective UV Ryzen 5000, with minimal loss of performance is:
- without turning on XMP, got to AMD Overclock, Curve Optimizer, Set per Core, Negative and start with -30 on every core. Test system stability with OCCT and correct, when some error appear, try -25, -20 etc after each error for some core. That will allow for higher boosting, that will be usefull for next step
- PPT - depending on your CPU, you should find online best results for PPT, EDC, TDC. PPT stands for Package Power Tracking, EDC is Electrical Design Current (and is major for performance), and TDC is Thermal Design Current . PPT and TDC have major impact for power consumption and temperatures, while EDC also have impact for temps and power, should not be lowered too much than default values (~10A, depend of CPU of user)
- Now you can enter BIOS and enable XMP for RAM. And choose FCLK, then UCLK==MEMCLK. That is very important, last step. If you have 3600Mhz RAM, set FCLK to 1800Mhz, and UCLK==MEMCLK - your CPU will run in synchronized mode (1:1:1).
Lastly after setting, testing everything up, you can lower CPU SOC voltage to 0.95 - 0.97 as XMP profiles tends to raise this voltage a lot.
Ryzen 5 5600G Before (Stock): 4.4GHZ / 1.34V / 77.6 C / 71.2 W / 9769 Pts
Ryzen 5 5600G After (TYC UV) : 4.0GHZ / 1.18V / 62.4 C / 52.1 W / 9472 Pts
Thanks a lot! Now I can uninstall Ryzen Master in Peace!
Brian look into PBO Curve Optimizer, it's harder to optimize but more efficient.
It's not that much harder at all.
Latest Ryzen Master can calculate and suggest value to input for per core CO.
It's pretty much no brainer at all.
It's still a good practice to do a stress testing for their suggested values though. Especially if the PC is being used for important non-gaming workload.
@@araisikewai I didnt know that, good to know. Tuning the offsets manually per core takes time to achieve stability. I've had to reset my bios settings so I've done it twice and both times I was getting BSODs at idle for at least a few weeks. At least if you want the absolute max undervolt.
@@RyugaHidekiOrRyuzaki If you have previously upgraded CPU using the same motherboard, make sure to clear CMOS.
There might be some redundant setting from previous CPU hidden somewhere that affect your current setting.
I had that problem where it keeps throwing out error when I stress test them whatever I did, even on default. One clear CMOS later, it resolve the issue.
Also, it's better to have per core CO because most likely the best core already in very tight setting and can't accept high offset. While the other cores can still accept looser setting.
My 5600X for example has a setting of
-10, -17, -28, -23, -29, -15
I haven't stress test this one, though I have stress test on all core -15 without error for 1 hour duration.
Disable turbo boost? Laptops with a discrete GPU often share the heatsink with the CPU. So I used to disable turbo boost to help with heat (or buy laptops with an I-5 that didn't have turbo boost). Nowadays, with desktop CPUs pushed to the limit, it still makes perfect sense to disable turbo boost. If AMD BIOS doesn't have a one-click solution, just lower the ratio to the base clock. You can still undervolt it for even cooler running. Then if you plan to run a game or program that requires more oomph, you can always change the BIOS setting back for more performance.
Excellent this is going to come in handy for me
Good guide. Well done as always.
Thanks Bryan! This is so helpful!
You save my life thank you bro❤
Great video and guide. Thorough and very easy to follow. I’ve got a question though. I just bought a 5800X (cooled by my trusty old Noctua NH-D15) that i’ve paired with my MSI B550-A Pro motherboard. If i don’t want to downclock the ”CPU Core Ratio” is there something else i should do or can i just skip that step in the Bios and still follow this guide, maybe don’t lower the ”VDDR CPU Offset Voltage” as much? Thanks in advance/ Isak