I've got this working with 4 x 48gb dimms. Corsair vengeance 5600, Gigabyte B650 Torus Elite AX, 7950X. Stable no issues, installed 2 of sticks, booted, installed 2nd pair. Latest Firmware from gigabyte F6a.
Hey, I am about to attempt this today. I have 5200’s. If you don’t mind I have a few questions. Did you flash to the latest firmware first? adjust the voltage for the 2 rams? How is the pc doing now? Thanks
Hey I wrote you on Twitter, but I will write you here too :) I was able to get 128GB of DDR5 6000Mhz CL30 working fully on a ryzen 7950X3D :D on an MSI X670E motherboard, was not easy but is doing it great!!!
@@hectorfigueroa6242 On die ECC is pretty much universal in DDR5 but only really offers about the same/slightly better memory integrity than non ECC DDR4. There's still proper 9 chip unbuffered ECC DDR5 around on top of this though
@@hectorfigueroa6242 obviously on-die solution isn’t going to cut it so people ask for full ecc, which also protect data integrity at the memory controller(cpu) level.
i just hope we eventually get to the point where higher capacities of ram are avalilbe at economical prices to where 16 and 32 gb configs start becoming more of baselines with 64 gb and above becoming the expected average
@@joshuagreer8046 i'm just saying it'd be nice to get to the point with ram production that these higher density modules eventually replace their lower tier counter parts at equivlant price points due to improvements in yields and stuff like that as DDR5 slowly replaces DDR4
Why? Why would anyone want programms to be more inefficient. Moores law is dead. We can't advance at that pace anymore. We need to advance in making shit software good.
@@durschfalltv7505 oh no i'm just saying it'd be nice if system integrators stared realizing that 16 gb and 32 gb configs are just kind of becoming the new baseline because of how memory hungry apps and operating systems are getting
one thing is that 24GB stick is single rank while anything larger is dual rank (for now), so 2x24GB may be a good option for running high clocks and getting extra headroom beyond 32GB
I'm waiting for 256GB kits to come available, so i can get 192GB kits of ECC 4800 for a reasonable price. Then i can run it at 3200-4000 on my 7950x (limited to ~80w because tiny server chassis) Edit at the point 256GB kits come out, the 192GB kits should be better supported
I don't remember what my first PC had when I first got it in 2006 as a hand-me-down but looking at an old Firefox install log from February 2007 it had 128MB RAM and for the longest time, even now, it has had 384MB RAM. If I had to guess it probably had only 64MB originally.
Appreciate you going to the trouble of measuring the voltage for urself. Personally would have been interested to see more details on ur test set-up. But maybe thats not something most viewers care about.
@@blairfus CMH96GX5M2B5600C40 is the kit number. I was having massive stability issues with my 4 x 32 kit, so I went with the lower speed units in the 2 x48gb and faster than my 4 x 32 @ 6400
For me reliability is utmost. I can't understand why people faff around so much with tuning. In my opinion that is something the engineers should have done before the products were put on sale.
I've been on X58 (which has triple channel memory) for a decade so 6GB, 12GB, 24GB, 48GB etc. look normal to me. Heck even my 440BX system has 384MB RAM with 128+64+64 sticks. Though seeing individual sticks with 24GB or 48GB do seem a bit wrong
48 is just 32 + 16 What should actually make you feel wrong, is that 32gb is not 32,000,000,000 and some significant change... but just 32,000,000,000 Like buying a K of memory and expecting to get a 1,024 hacker bytes, but getting 1,000 mathematician metric bytes instead. Hey! Grrr! That's how I felt. I've been shafted by Corsair! A 64K Commodore 64 for example, had 2^16 or 65,536 hacker bytes. So yeah, your 8,16,32,64,128 memory sticks probably are not internally symmetrical at all. Worse, my 128gb 7950x system reports 127gb of RAM in Windows taskman... so... yeah... At least 1/2gb or 512mb is being reserved for 7950x IGPU video memory... so... 127.5gb free, rounded down?
My old R9-5950X has been running 128GB since I assembled it two years ago, with memory overclock. 192GB or 256GB just isn't enough for what I do now, so I bought an Intel Xeon W7-2495X and 512GB in 8x64GB, expandable to 2TB when the larger DDR5 RDIMMs release.
Wendell finally does what nobody else has done and tested these high RAM unconventional dimms. Literally only TH-camr who previously tested 4 dimms 128gb ram for AMD.
Currently using 2 16gb expo, 7700x, it was not stable with expo so running default speed… figure I will wait for these updates to slowdown before upgrading to 2x 48GB expo and hope that runs stable in expo?
The best I can get my 1286gb Trident Z F5-6400 is 4200Mhz (stable) on a 7950X with the new new AGESA. Same as the previous AGESA, well apart from I now have to run at 1.4V instead of 1.2V. EDIT: ASUS X670E-A MB if that makes any difference.
Good stuff, but I'm just wondering why 48GB DIMMS even exist. it's a weird capacity. Really happy that you and others are taking to time to sort all this out, as I lack the time, budget and patience to do so. Hopefully this will lead to some better BIOS' and boards, so that things get closer to assemble, set expo, carry on with your day than they are now.
They exist partly because 64GB DIMMs will be very expensive and it's a way to get more than 32GB per DIMM without going all the way to the next binary multiple
Wendell, I have looked in the Level1Techs video library, here on youtube, and I cannot find a review of the Asrock B650m HDV/M.2 motherboard. I am wanting to pair that board with a Ryzen 7700. When I look in Asrock's QVL memory kits, for the HDV board, I do not see any 48GB memory modules listed and Asrock has ghosted me when I've inquired about suggested kits. My thinking is, since the B650m HDV/M.2 only has two dimm slots it would handle a 2x48GB DDR5 kit fairly straightforwardly. I have seen in other reviews that the HDV board will handle higher memory speeds than an Asrock B650m PG Riptide, even when the PG only has two dimms populated. I have been doing my diligence in choosing either the PG or HDV boards. Not being 'wired' for 4 dimm slots seems to benefit the HDV board. Anyway, I'm hoping to peak your interest enough to get an investigation and quick video out of you. Regardless, thank you.
agreed.. ram at 6200 or higher sets to 1.35v, ram set to 6000 or less is 1.29 or less. I am currently running at 6000 with 2 stix of 32g per / total 64g.. so far solid .. 7800x3d, asus strix e-e gaming, 7900xtx, g skill 6400 ram .. current soc is at 1.245... bios 1303
Very interesting Wendell! This has me wondering how future proof this AM5 platform really is. I hope it can be resolved with a new memory controller in the Zen5 CPUs(I've given up on Zen4 already). If they cant get 4 dims working at higher DDR5 speeds with the upcoming Zen5 CPUs without new needing motherboards then the whole 5 year thing was effectively a lie since motherboards cost nearly as much or more than the CPU.
Motherboards are gimped to begin with though. Just give 3× NVMe slots M-key, even if I am left with just 2 sata for hdd (rest can go NAS or server anyway). Then an E-key on top for those of us that cannot always install cables, no matter how much I want to.
Can concur, operating multiple systems with 4 x 32 GB ECC UDIMMs on AM4, absolutely stable at JEDEC default settings with 1.2 V DDR4-3200. But it was a long road on AM4, my primary issue with first-gen AM5 is that the interface between CPU and chipset is still only PCIe Gen4 x4, not Gen5 x4.
@@abavariannormiepleb9470 I think concerns about chipset bandwidth are getting way overblown. That link allows for 7000MB/s. There are an extremely limited number of use cases where that becomes the actual bottleneck. For example I have a board with 10Gbe and TB4. The fastest it could get data in/out is 5000MB/s yet no TB NVME enclosure even exists that'll max the interface. 10Gbe is 1250MBps. If you're trying to actually do something with said data, a 7950X(3D) max decompression speed is ~ 2900MB/s, and compression is only 150MB/s. Most other things you could ask of the CPU will not even have as much throughput as decomp. Top end GPUs don't even genuinely need all 16 CPU lanes the vast majority of the time. That chipset link will almost never be an actual roadblock to work or play for most of the life of the platform.
@@NickGuelker Yep. I got onto AM4 with a B450 board and a 2600x. I think I waited too long to upgrade. Now, if I upgrade, do I get a new 500 series chipset motherboard so I can benefit from PCIe4 and Ryzen 5000 CPU, Just get a 5000 CPU and struggle with knowing I'm potentially leaving a smidge of of performance behind by staying on a B450 mobo, or do I just get an entry level AM5 board and 7000 CPU?
@@RANDOMNATION907 Well if it was me, Id drop in a 5600 or 5800X3D in the b450. And id wait to see the next generation or two of AM5 chipsets. Both CPU's would be a pretty big jump that would last you quite a while. But as always, you know your use case better than anyone.
Zen4 has always seemed extremely mediocre anyway. Only if Microcenter offers 7800x3d, X670/B650, 32gb RAM, and a free game or 2 for $500-$600 will I consider upgrading my son's PC.
Has the new Agesa update changed the situation at all? I really wanted to run 1DPC 2R 6000MHz 96GB DDR5 on my Asus X670E-E (currently on 32GB DDR5 with a similar configuration from Gskill). While I wont use the whole of it around 80% of the time, it would be good to have that capacity at hand. Any revisits at some point Wendell?
Memory on AMD is such a mess. I've got a 7950X and trying to get 4x32GB going is a nightmare. The performance hit is very real when slowing down that much. Hopefully they work on this for next gen, I'm happy that AMD is doing well, but this is a big problem for me.
What about adding Kits in A2, B2, A1, B1 in that order? Only inserting kits in that order on AM4 with 4 sticks allowed me to use XMP or higher memory speeds and tighter timings at lower voltages. I don't suppose this would work with AM5?
Also with four DIMMs the memory controller might not even go past a given speed, I'm amazed that there are still people out there who would need the tip to channel match DIMMs... There is so much difference between some versions of memory kit, channel matching is about the only thing you should worry about! Also, reading the datasheets of the products in question (memory DIMMs and memory controller, AMD and Intel release these) will help you a lot in understanding why some memory configurations simply will not work.
7950X with 128GB at 6200 booting here, but 5600 for tighter timings. I have fiddled with 192GB in the Beta Bios and it ran perfectly well at advertised speeds and timings without errors, but the 128GB are enough and a lot faster.
Could you explain in more detail the upsides to putting different kits in different channels, and does it matter on LGA1700? (I have a Crucial DDR5-5200 kit and a Kingston DDR5-5200 kit, 2x 32GB each for a total of 128GB; and wondering whether to put them in Crucial-A1-A2 and Kingston B1-B2, or Crucial-A1-B1 and Kingston A2-B2).
This really sucks that in 2024, we still have to have a Computer Science degree and jump through 100 different hoops in attempt to use the rated speed CLAIMS from both the Motherboard and Memory manufacturer. Nowhere in their marketing do they mention that the average person building their own system will pull their hair out and waste DAYS trying to get the speeds they advertise...all for nothing. They don't say in their marketing "RAM speed of 8000Mts and 256GB............on just 2 RAM Modules....Fuhgetta bout it on 4 sticks!" I really am sick of this BS. Over $600 wasted for 4 sticks of 6000Mts Kingston Fury Memory, and cannot really use them. Even at 4800, it's not really stable.
It is. I had very bad luck with my first AM5 mobo - Gigabyte B650E Aorus Master. Constant black screens under CPU load and unable to turn off the PC from the power button. I have the video on my channel. Quite a few other users report exactly the same issue with that board. Then I replaced it with an Asus Crosshair Hero only to be struck with the SOC overvoltage problems. 😂
Wendell, great video that I'm sure will help many people avoid pitfalls or overcome them so they can rock their systems. I think it's a failure in the spec to have this sad state of affairs where you buy DDR5, put it in a DDR5 motherboard, and it doesn't just work. It's not just DDR5 either, the DDR4 situation wasn't much better, particularly server ram with ECC. The spec should accommodate mixed speeds by just defaulting to the slower speed. If it needs a specific voltage, that should have been covered by the spec! the overlords who design DDR5 should forecast the proper voltage range for that generation. We should never had to deal with a spreadsheet of numbers as seen at 10:26. The SPEC should cover the case of undervoltage, if a stick needs X volts but you only feed it 92% of X? then just run at the slowest _stable_ speed for the voltage it gets. There should never be instability foisted on the consumers. What is the point of having a spec if it ends up like this?
I would like to thank all of the early AM5 adoptors for getting all the bugs out before I buy!!!!🎉 Never buy the new design year whether it be a platform or car or whatevs. Always bugs to work out. The second run is usually the best 👌
Saw a memory overclocking video on youtube, "1.4 Vsoc is safe, I just happen to have killed one cpu already" I did not like it, I reluctantly set it to 1.3 but then went back to 1.25. Few months have passed and seems like 1.4 is definitely too much, I'm now on 1.2 and it works.
Good point on mismatched DIMM's. I have 2 pairs of mismatched 3200 MT/s and it won't budge past 2666. Well. at least i got 32 GB of ram. XMP timings @ 1.22V. Passed Memtest. No need to run DIMM's @ 1.35V at 2666 MT/s. eh, those compromiseses. The thing is, people often don't have money to buy all 4 memory DIMM's at once. Later, those DIMM's they bought are out of stock....and we have those kind of situations.
Can I combine 2x8 GB and 2x16 GB ram for 48 GB? The rams are all Corsair Vegeance LPX. I check that my Motherboard ram capacity is 128GB. Funny story I accidentaly buy 16x16 GB of ram when I was planning to buy another 8x8GB of rams.
Seems like the best performance is with 2 dimms. Sounds like the same issues they had with 1st Gen AM4. It's why I've stuck with the more mature am4 platform and a 5800x3D. 800- or 9000 series AM5 are more likely to have this ironed out.
I am building an Intel Core i7-12700K on a MSI Mag B760M Mortar WIFI II board and I plan on doing 192 GB of Crucial Pro DDR5 5600MT/s RAM. Would I be on track running this much and what sort of tuning will I be looking at?
After its all cleaned, use latex gloves to handle the hardware. Do not touch anything with bare skin. We also removed the cmos battery prior to cleaning******
I want to upgrade to AM5 and I was thinking buying an Ryzen 5 7600X, I think is enough for 1440p gaming. For the MB I was thinking Asrock B650 Pg lightning but the Ram is a problem, I really want to get to 6000mhz CL30, what memory do I need to buy? I have hopes for this Agesa 1007 but I don't have then time to overclock some.
128 gb on a 16 core threadripper feels amazing on my workstation, I'm running so many VMs crunching CI&CD and other stuff, love it. Some day I might upgrade to a 32 core 2x series, but at that point, having a Zenith Extreme that is basically a prototype, it might be better to completely migrate to a new platform and get the 64 core version directly, I can still run this machine at least 5 more years.
yeah if you're still happy with its performance, I would at least wait for zen4 Threadripper to come out. Or longer if you don't want to adopt early again. That should be a significant uplift over zen2/3 as well, and maybe with Intel at least trying to compete again the prices may come down a little in the near future.
It might be best to just wait a bit longer for 64 GB UDIMMs to come out. They should arrive within a year and hopefully with zen 5 faster speeds with four DIMMs is achievable.
@@shanent5793 they actually existed for a very short period, the only CPUs where the IMC could handle them was Intel’s delayed consumer Broadwell. But the same year Skylake launched with DDR4 that initially came with 16 GB UDIMMs so no manufacturer really cared about producing DDR3 16 GB UDIMMs.
Nice work. So effectively you are saying ASUS, Gigabytes not too good for rams. ASRock is better and MSI is the best for ram. Thinking of moving to AM5 with 192GB ram.
96GB G.Skill Flare X5 5600 on an MSi MPG X670E Carbon WiFi with 7950X3D? Please advise. Mobo coming in the mail on Wednesday. I'm a content creator that tried 128GB TEAMFORCE Vulcan 5200 4x32GB on an X670 Aorus Elite AX and had to send back mobo and RAM kit. Trying this new mobo, 2 DIMM config for a 96GB setup. I need lot's of RAM! You think this'll work? AM5 is so sketchy :/
This reminds me of how "picky" AM4 was (well, it was, so...) and nowadays you can slam fire 4x16s into even a lowly 3000G and it'll work /every time/ to at least 1600mhz FCLK.
Can confirm, anecdotally. I built a little test system with a 3000G when I suspected to have a faulty DIMM in my main system and decided to just do a couple of days of more thorough testing of all DDR4 sticks I own. I was very surprised that I could mix all kinds of funky mismatched configs of cheap low end memory and higher end kits, 1, 2, 4 sticks or even 3, and it all POSTed and ran stable. I really didn't think anything before a zen2 CPU to handle that so well, but it seems the early pains were either dealt with through AGESA-updates or only were an issue on 300 series MBs (I used a B450 board).
Yes you should wait. Still dealing with ddr5 headaches. I am seriously considering going back to ddr4 to avoid random blue screens that I can't seem to pin down.
GSkill actually juuust got their 96gb kit 5600 mhz with EXPO out. Ordered it yesterday (F5-5600J4040D48GX2-FX5), rated for 1.25v. Hopefully im lucky and fine running them out of the box. With the 7800x3d it shouldnt matter really that its 5600 instead of 6000.
Personally i just skip this gen and hope that we will see that the Ryzen "8000 series" is just more plug and play. I did order a 7800x3d platform for my rig (Currently using a 5900x, was gonna move that into my backroom server), but ended up returning the parts with the whole debacle of SOC voltages. Been reading a lot of complaints lately, and i just personally cant be arsed using a unstable system, or leaving so much performance on the table by running below 6000 MHz(As shown by GNs recent performance benchmarks). Also obviously considered Intel, however the power draw of their CPUs just feels so completely unacceptable that is also a nogo for me.
I don't remember having anywhere near the issues DDR5 does when we made to move to DDR4, DDR3, DDR2, or DDR in the past. I honestly think the standard simply isn't ready. Just a couple weeks ago I had a build where 32gb of DDR5 7200 wouldn't stabilize above 6000 and straight up refused to post at 7200. And that was on a far from cheap z790. Testing individually only one stick could hit 7000. Returned the DDR5 for replacement and the next kit worked ok after enabling and disabling xmp several times and waiting through training each time so I know it wasn't the motherboard. We don't even have to go into trying to run 4 dimms of DDR5. That shit's not normal and I'm tired of people pretending it is just cause they want the latest and greatest. We're surrounded by products at insane prices that are falsely advertised at speeds they _might_ be able to hit in real life and only on the most expensive motherboards and no one sees a problem with this? I'm quickly tiring of these companies pushing their hardware past it's limits, false advertising at unheard of levels that should be deemed illegal, ever diminishing quality control, and using ridiculous amounts of uncoolable power, all so they can charge us the highest prices in history. I've been building systems for 2 1/2 decades and never can I remember having as many hardware failures as I've witnessed over the last few years.
I had many issues with DDR2-800 on AM2; requiring several BIOS revisions to ultimately work properly. Zen 1 was absolutely abysmal with memory. I had to run at safety speeds on my 1700 using 64GB of Corsair LPX. Then I replaced it with a 3700X...which to this day I can't get either that RAM or a 128GB kit of 3200 to operate at full speed. It needs to drop to 2666 to run. If you look back there were tons and tons of issues with DDR2, DDR3 was better, but DDR4 had significant issues on both Zen (as mentioned) and on the Skylake platform when it launched. Regarding Zen 1, just google "Samsung B-die + Zen". Finally, it's != its.
@@tim3172 Sounds like you just have bad luck. You always _hear_ about issues cause that's good click bait and always screamed the loudest, but I never personally had near the problems with Pentium 1 2 and 3, k6, Athlons, or Core when it comes to memory. My Zen3 has other problems now but at first I had to keep swapping the memory around and testing single sticks, and I've had the same issues with 10th 12th and 13th gen with the DDR5 being noticably worse. And NEVER have I seen SDR, or DDR1-4 straight up refuse to run at is rated speed like I've seen with DDR5.
Wendel, when it comes to computers I am a beginner/builder and have only built 1 so far but I want to build another soon. Parts: GIGABYTE B650 AORUS ELITE AX,Rysen 7800x3d, GIGABYTE AORUS GeForce RTX 4080, 1000 watt power supply Seasonic Vertex and 360 AIO or EK-Quantum Power Kit D-RGB P360and Lian Li 216. My problem is the Ram and want G Skill neo 6000 30-38 timing but what would work best to just apply Expo 2x16 or 2x32 and have it work and are my other parts good or should I use different motherboard like an X670.
i really dont get ddr5. you want ddr4 ram at this speed and amount? but it, plop it on in and maybe give it .5 more volts. if it was going to be this much of a SS, why not just hold off on ddr5 for a bit.
With the older Intel systems you could chuck in any miss matched memory sticks and they'd work fine. With AMD you don't mess about. You make sure they all match. Ideally you use two rather than 4 for stability.
I'm still running an I7 4790k on an Asus z97 Pro, when I added a second 8Gigs 2133Mhz kit (same exact kit) to run 16Gb it was a total nightmare, it wouldn't post at all, I think I spent close to 4 hours just throwing the Dimms at random until it finally posted, would run my previous manual configuration (2133Mhz with slightly tightened secondary timings). I don't know what I did to finally make it work, it just finally worked at some point even though I had already tried everything I could think of, I sure as hell never touched the Dimms after that to find out.
Ideally you always make sure to have the same. However I found AM4 to be surprisingly forgiving as well. At least with 400/500 series motherboards that is - I never owned one of the first gen ryzen boards that seemed to have much more issues. I suspected one DIMM in my main system to be faulty and build a little test system to run all memory sticks I own thorough testing. To my surprise I could mix and match all kinds of funky configurations with 4 (or even 3) sticks, from very low end OEM cheapo sticks and higher end 3600 kits and got that to POST and run stable no prob (of course limited to speeds/timings the slowest stick can do). And that even worked with my Athlon 3000G that I used in my test system. I expected a Zen or Zen+ CPU to really suck at this, but even that one handled that pretty well. This is anecdotal and limited sample size though, so take this with a grain of salt.
@@Hugh_I My experience could be out of date. Having had to be very careful on the first RYZEN system to make the memory stable I've not risked it. I have a 4 stick 32GB X470 system that won't do XMP properly. I have just built a new B450 system with 32GB in 2 sticks of 3600MT memory. That also does not do XMP safely. I've manually clocked it to 3200MT and manually set the voltage to 1.24v. It's all a bit fiddly. Next time I'll buy 3200MT RAM and not try messing about with the faster stuff.
Yeah, Intel's first-47th iteration of a quad core CPU didn't require too much memory bandwidth. Now that we've doubled and quadrupled the cores memory bandwidth is an issue.
Its july 20, 2023 and things are looking up with this new agesa! :D
hopefully 128gb works at 6ghz now ?
I've got this working with 4 x 48gb dimms. Corsair vengeance 5600, Gigabyte B650 Torus Elite AX, 7950X. Stable no issues, installed 2 of sticks, booted, installed 2nd pair. Latest Firmware from gigabyte F6a.
Hey, I am about to attempt this today. I have 5200’s. If you don’t mind I have a few questions. Did you flash to the latest firmware first? adjust the voltage for the 2 rams? How is the pc doing now? Thanks
Hey I wrote you on Twitter, but I will write you here too :) I was able to get 128GB of DDR5 6000Mhz CL30 working fully on a ryzen 7950X3D :D on an MSI X670E motherboard, was not easy but is doing it great!!!
The passion that goes into making these videos is unmistakable. Fantastic job Wendell!
Wendell is like a Bruce Wayne of PC entertainment :) Respect man.
Yo Micron, if any of you guys are watching this, please release 48 GB DDR5 ECC UDIMMs.
Have you checked if the ddr itself has internal on die ecc?
I meant proper ECC UDIMMs, the general isolated On-Die ECC from DDR5 is only a crutch to increase the chip yield.
@@hectorfigueroa6242 On die ECC is pretty much universal in DDR5 but only really offers about the same/slightly better memory integrity than non ECC DDR4. There's still proper 9 chip unbuffered ECC DDR5 around on top of this though
@@hectorfigueroa6242 obviously on-die solution isn’t going to cut it so people ask for full ecc, which also protect data integrity at the memory controller(cpu) level.
Wendell is really looking so good these days❤
i just hope we eventually get to the point where higher capacities of ram are avalilbe at economical prices to where 16 and 32 gb configs start becoming more of baselines with 64 gb and above becoming the expected average
It already technically is same with 24x2, what is blowing my mind up is gou vram my 7900xtx has 24 gigs and games really leverage it and general ram
@@joshuagreer8046 i'm just saying it'd be nice to get to the point with ram production that these higher density modules eventually replace their lower tier counter parts at equivlant price points due to improvements in yields and stuff like that as DDR5 slowly replaces DDR4
I'm surprised that isn't already the case! You can get 32gb for a little over 100 now
Why? Why would anyone want programms to be more inefficient. Moores law is dead. We can't advance at that pace anymore. We need to advance in making shit software good.
@@durschfalltv7505 oh no i'm just saying it'd be nice if system integrators stared realizing that 16 gb and 32 gb configs are just kind of becoming the new baseline because of how memory hungry apps and operating systems are getting
Good show packed with gobs of useful information! Thank you, Wendell...🇺🇸 😎👍☕
one thing is that 24GB stick is single rank while anything larger is dual rank (for now), so 2x24GB may be a good option for running high clocks and getting extra headroom beyond 32GB
I just checked and newegg indeed has a pair of 96GB DDR5 5600 EXPO kits from Gskill available, would like to know how they work with AM5 CPUs.
Wendell, have you ever tested the influence of VSoC on chiplet CPUs’ PCIe performance (likelihood of PCIe Bus Errors etc.)?
I'm waiting for 256GB kits to come available, so i can get 192GB kits of ECC 4800 for a reasonable price. Then i can run it at 3200-4000 on my 7950x (limited to ~80w because tiny server chassis)
Edit at the point 256GB kits come out, the 192GB kits should be better supported
Just want to say thank you for the video and this thread. Up and stable now with 96gb at 6000
What’s your secret?? I have 4 sticks of 24gb at 6000 and keep getting random crashes
Finally getting back to where I was as a kid with MB but now GB
remember when we used to brag about 32/64/128mb voodoo cards
I don't remember what my first PC had when I first got it in 2006 as a hand-me-down but looking at an old Firefox install log from February 2007 it had 128MB RAM and for the longest time, even now, it has had 384MB RAM. If I had to guess it probably had only 64MB originally.
My first RAM upgrade was 16->64 megs in the family PC.
Old computers had less performance and cost more.
Wow, fascinating stuff. Please tell us more. This is such a new concept.
And yes it did.. my Tandy TL2 cost 2200 in 1990 money. Who's is over 5000 today.
Any other highly intelligent comments
I’m building a 7580x build with the ASUS ProArt any updates on this?
Appreciate you going to the trouble of measuring the voltage for urself.
Personally would have been interested to see more details on ur test set-up. But maybe thats not something most viewers care about.
Running two 48gb Vengeance DIMMs on my 13900k on XMP2 setting. They've been stable and fast
MT/s and timings? Just moved to 2x48GB on Z790. Struggling with 2R limitations on an XMP kit after moving away from a really tight 1R EXPO kit.
@@blairfus CMH96GX5M2B5600C40 is the kit number. I was having massive stability issues with my 4 x 32 kit, so I went with the lower speed units in the 2 x48gb and faster than my 4 x 32 @ 6400
Did you have to update the bios?!
@Thiago Yes. Machine booted with new RAM in place but was running super slow 'auto' timings.
@@DoNotFitInACivic Do you mean that if you don't update the PC it doesn't start or start with errors?
I'm eager for the video about the move from Agesa to OpenSIL.
Thanks for this very well done and informative video. :)
For me reliability is utmost. I can't understand why people faff around so much with tuning. In my opinion that is something the engineers should have done before the products were put on sale.
In the world of 8,16,32,64,128 .... the number 48 makes me uneasy...
I cannot help it but it just feels like something is wrong :O
Or 6TB drives...
I've been on X58 (which has triple channel memory) for a decade so 6GB, 12GB, 24GB, 48GB etc. look normal to me. Heck even my 440BX system has 384MB RAM with 128+64+64 sticks.
Though seeing individual sticks with 24GB or 48GB do seem a bit wrong
@@Pasi123 yep, when it is a combo of 16+16 + 8 + 8 , that's legit.
But individual 48 just feels wrong :)
48 is just 32 + 16
What should actually make you feel wrong, is that 32gb is not 32,000,000,000 and some significant change... but just 32,000,000,000
Like buying a K of memory and expecting to get a 1,024 hacker bytes, but getting 1,000 mathematician metric bytes instead.
Hey! Grrr! That's how I felt. I've been shafted by Corsair! A 64K Commodore 64 for example, had 2^16 or 65,536 hacker bytes.
So yeah, your 8,16,32,64,128 memory sticks probably are not internally symmetrical at all.
Worse, my 128gb 7950x system reports 127gb of RAM in Windows taskman... so... yeah...
At least 1/2gb or 512mb is being reserved for 7950x IGPU video memory... so... 127.5gb free, rounded down?
Why not measure the voltage with an oscilloscope?
My old R9-5950X has been running 128GB since I assembled it two years ago, with memory overclock. 192GB or 256GB just isn't enough for what I do now, so I bought an Intel Xeon W7-2495X and 512GB in 8x64GB, expandable to 2TB when the larger DDR5 RDIMMs release.
Wendell finally does what nobody else has done and tested these high RAM unconventional dimms.
Literally only TH-camr who previously tested 4 dimms 128gb ram for AMD.
Nope. Game Tech Reviews has also done content on 128GB ram for AM5.
Very good video! Very informative.
I need 192 GB of RAM for my new workstation. This sucks. Thank you for the video and the hard work Wendell!
Currently using 2 16gb expo, 7700x, it was not stable with expo so running default speed… figure I will wait for these updates to slowdown before upgrading to 2x 48GB expo and hope that runs stable in expo?
A true mad scientist of the modern age. I love it!
The best I can get my 1286gb Trident Z F5-6400 is 4200Mhz (stable) on a 7950X with the new new AGESA. Same as the previous AGESA, well apart from I now have to run at 1.4V instead of 1.2V. EDIT: ASUS X670E-A MB if that makes any difference.
Good stuff, but I'm just wondering why 48GB DIMMS even exist. it's a weird capacity.
Really happy that you and others are taking to time to sort all this out, as I lack the time, budget and patience to do so.
Hopefully this will lead to some better BIOS' and boards, so that things get closer to assemble, set expo, carry on with your day than they are now.
Memory capacity per module was increased from 128Gb to 192Gb.
They exist partly because 64GB DIMMs will be very expensive and it's a way to get more than 32GB per DIMM without going all the way to the next binary multiple
im grateful for this 48gb ddr5, coz now pc only support dual rank with over 6000mhz. most dies when sticking 4 fast rams
Wendell, I have looked in the Level1Techs video library, here on youtube, and I cannot find a review of the Asrock B650m HDV/M.2 motherboard. I am wanting to pair that board with a Ryzen 7700. When I look in Asrock's QVL memory kits, for the HDV board, I do not see any 48GB memory modules listed and Asrock has ghosted me when I've inquired about suggested kits. My thinking is, since the B650m HDV/M.2 only has two dimm slots it would handle a 2x48GB DDR5 kit fairly straightforwardly. I have seen in other reviews that the HDV board will handle higher memory speeds than an Asrock B650m PG Riptide, even when the PG only has two dimms populated. I have been doing my diligence in choosing either the PG or HDV boards. Not being 'wired' for 4 dimm slots seems to benefit the HDV board. Anyway, I'm hoping to peak your interest enough to get an investigation and quick video out of you. Regardless, thank you.
At this point I'm really wondering why I went with AM5.
agreed.. ram at 6200 or higher sets to 1.35v, ram set to 6000 or less is 1.29 or less. I am currently running at 6000 with 2 stix of 32g per / total 64g.. so far solid .. 7800x3d, asus strix e-e gaming, 7900xtx, g skill 6400 ram .. current soc is at 1.245... bios 1303
Very interesting Wendell! This has me wondering how future proof this AM5 platform really is. I hope it can be resolved with a new memory controller in the Zen5 CPUs(I've given up on Zen4 already). If they cant get 4 dims working at higher DDR5 speeds with the upcoming Zen5 CPUs without new needing motherboards then the whole 5 year thing was effectively a lie since motherboards cost nearly as much or more than the CPU.
Motherboards are gimped to begin with though.
Just give 3× NVMe slots M-key, even if I am left with just 2 sata for hdd (rest can go NAS or server anyway). Then an E-key on top for those of us that cannot always install cables, no matter how much I want to.
I'm using 4 Dimms, but i'm also on AM4. GIving AM5 another generation or two to get the kinks worked out before I consider moving to that.
Can concur, operating multiple systems with 4 x 32 GB ECC UDIMMs on AM4, absolutely stable at JEDEC default settings with 1.2 V DDR4-3200.
But it was a long road on AM4, my primary issue with first-gen AM5 is that the interface between CPU and chipset is still only PCIe Gen4 x4, not Gen5 x4.
@@abavariannormiepleb9470 I think concerns about chipset bandwidth are getting way overblown. That link allows for 7000MB/s. There are an extremely limited number of use cases where that becomes the actual bottleneck. For example I have a board with 10Gbe and TB4. The fastest it could get data in/out is 5000MB/s yet no TB NVME enclosure even exists that'll max the interface. 10Gbe is 1250MBps. If you're trying to actually do something with said data, a 7950X(3D) max decompression speed is ~ 2900MB/s, and compression is only 150MB/s. Most other things you could ask of the CPU will not even have as much throughput as decomp. Top end GPUs don't even genuinely need all 16 CPU lanes the vast majority of the time. That chipset link will almost never be an actual roadblock to work or play for most of the life of the platform.
"Ask" as a noun really grates on the ears.
Im glad i decided build on the last round of AM4.
Looks like AM5 needs work.
AM4 1st Gen (Zen) had some serious memory compatibility issues too, and it was never really fully straightened out by Zen3.
@@RANDOMNATION907 Thats true, my point was more, I'm glad I'm not an early adopter.
And AM4 is really quite refined. I'm sure AM5 will be too
@@NickGuelker Yep. I got onto AM4 with a B450 board and a 2600x. I think I waited too long to upgrade. Now, if I upgrade, do I get a new 500 series chipset motherboard so I can benefit from PCIe4 and Ryzen 5000 CPU, Just get a 5000 CPU and struggle with knowing I'm potentially leaving a smidge of of performance behind by staying on a B450 mobo, or do I just get an entry level AM5 board and 7000 CPU?
@@RANDOMNATION907 Well if it was me, Id drop in a 5600 or 5800X3D in the b450. And id wait to see the next generation or two of AM5 chipsets.
Both CPU's would be a pretty big jump that would last you quite a while.
But as always, you know your use case better than anyone.
Zen4 has always seemed extremely mediocre anyway. Only if Microcenter offers 7800x3d, X670/B650, 32gb RAM, and a free game or 2 for $500-$600 will I consider upgrading my son's PC.
Has the new Agesa update changed the situation at all? I really wanted to run 1DPC 2R 6000MHz 96GB DDR5 on my Asus X670E-E (currently on 32GB DDR5 with a similar configuration from Gskill). While I wont use the whole of it around 80% of the time, it would be good to have that capacity at hand. Any revisits at some point Wendell?
I never get tired to amaze how good is the background/title music on this channel. Do you know what it is?
So what im hearing is you can definitely do 96 GB 2x 48 GB on the 7000 series
I have two 32GB dimms that live on top of my case because I could never get all four sticks stable :(
Experiment: follow what I did in the forum and see if it works?
Memory on AMD is such a mess. I've got a 7950X and trying to get 4x32GB going is a nightmare. The performance hit is very real when slowing down that much. Hopefully they work on this for next gen, I'm happy that AMD is doing well, but this is a big problem for me.
What about adding Kits in A2, B2, A1, B1 in that order?
Only inserting kits in that order on AM4 with 4 sticks allowed me to use XMP or higher memory speeds and tighter timings at lower voltages. I don't suppose this would work with AM5?
Also with four DIMMs the memory controller might not even go past a given speed, I'm amazed that there are still people out there who would need the tip to channel match DIMMs...
There is so much difference between some versions of memory kit, channel matching is about the only thing you should worry about! Also, reading the datasheets of the products in question (memory DIMMs and memory controller, AMD and Intel release these) will help you a lot in understanding why some memory configurations simply will not work.
Is it still the case that using all 4 dimm slots reduces odds of expo mode working with stability?
7950X with 128GB at 6200 booting here, but 5600 for tighter timings. I have fiddled with 192GB in the Beta Bios and it ran perfectly well at advertised speeds and timings without errors, but the 128GB are enough and a lot faster.
Is there an update on this? I see some ppl doing ddr5 8000mhz kits of 2x48 GB but not 4x48 GB yet
After all the updates does 192gb work with AM5?
Could you explain in more detail the upsides to putting different kits in different channels, and does it matter on LGA1700? (I have a Crucial DDR5-5200 kit and a Kingston DDR5-5200 kit, 2x 32GB each for a total of 128GB; and wondering whether to put them in Crucial-A1-A2 and Kingston B1-B2, or Crucial-A1-B1 and Kingston A2-B2).
I want 64 and 96GB RAM dimms
This really sucks that in 2024, we still have to have a Computer Science degree and jump through 100 different hoops in attempt to use the rated speed CLAIMS from both the Motherboard and Memory manufacturer. Nowhere in their marketing do they mention that the average person building their own system will pull their hair out and waste DAYS trying to get the speeds they advertise...all for nothing. They don't say in their marketing "RAM speed of 8000Mts and 256GB............on just 2 RAM Modules....Fuhgetta bout it on 4 sticks!" I really am sick of this BS. Over $600 wasted for 4 sticks of 6000Mts Kingston Fury Memory, and cannot really use them. Even at 4800, it's not really stable.
I really want to see if I can put 48gb on an evga z690 dark.
it really looks like the AM5 is a bit undercooked
It is. I had very bad luck with my first AM5 mobo - Gigabyte B650E Aorus Master. Constant black screens under CPU load and unable to turn off the PC from the power button. I have the video on my channel. Quite a few other users report exactly the same issue with that board. Then I replaced it with an Asus Crosshair Hero only to be struck with the SOC overvoltage problems. 😂
Asus: FOR THOSE WHO DARE
Wendell, great video that I'm sure will help many people avoid pitfalls or overcome them so they can rock their systems.
I think it's a failure in the spec to have this sad state of affairs where you buy DDR5, put it in a DDR5 motherboard, and it doesn't just work. It's not just DDR5 either, the DDR4 situation wasn't much better, particularly server ram with ECC. The spec should accommodate mixed speeds by just defaulting to the slower speed. If it needs a specific voltage, that should have been covered by the spec! the overlords who design DDR5 should forecast the proper voltage range for that generation. We should never had to deal with a spreadsheet of numbers as seen at 10:26. The SPEC should cover the case of undervoltage, if a stick needs X volts but you only feed it 92% of X? then just run at the slowest _stable_ speed for the voltage it gets. There should never be instability foisted on the consumers. What is the point of having a spec if it ends up like this?
Question: What is the use case you would use this in a real world environment?
Bragging rights.
what 2 48 gig Dimm Kit(s) runs at 6000mhz under 1.3v?
And this is why im still building a 128GB DDR4 workstation. DDR5 is still such a headache.
I would like to thank all of the early AM5 adoptors for getting all the bugs out before I buy!!!!🎉 Never buy the new design year whether it be a platform or car or whatevs. Always bugs to work out. The second run is usually the best 👌
Saw a memory overclocking video on youtube, "1.4 Vsoc is safe, I just happen to have killed one cpu already" I did not like it, I reluctantly set it to 1.3 but then went back to 1.25. Few months have passed and seems like 1.4 is definitely too much, I'm now on 1.2 and it works.
I know Asrock's new BIOS update runs XMP fine no need to buy a EXPO kit.
I was wondering how much your PSU could effect your ability to run your ram at higher speeds and be stable.
So there are new beta AGESA bios updates now. Can you do a video on them?
they are out of BETA check your MB site to see if there is one for yours.
Good point on mismatched DIMM's. I have 2 pairs of mismatched 3200 MT/s and it won't budge past 2666. Well. at least i got 32 GB of ram. XMP timings @ 1.22V. Passed Memtest. No need to run DIMM's @ 1.35V at 2666 MT/s. eh, those compromiseses. The thing is, people often don't have money to buy all 4 memory DIMM's at once. Later, those DIMM's they bought are out of stock....and we have those kind of situations.
Can I combine 2x8 GB and 2x16 GB ram for 48 GB?
The rams are all Corsair Vegeance LPX. I check that my Motherboard ram capacity is 128GB. Funny story I accidentaly buy 16x16 GB of ram when I was planning to buy another 8x8GB of rams.
Seems like the best performance is with 2 dimms. Sounds like the same issues they had with 1st Gen AM4. It's why I've stuck with the more mature am4 platform and a 5800x3D. 800- or 9000 series AM5 are more likely to have this ironed out.
I am building an Intel Core i7-12700K on a MSI Mag B760M Mortar WIFI II board and I plan on doing 192 GB of Crucial Pro DDR5 5600MT/s RAM. Would I be on track running this much and what sort of tuning will I be looking at?
After its all cleaned, use latex gloves to handle the hardware. Do not touch anything with bare skin.
We also removed the cmos battery prior to cleaning******
I want to upgrade to AM5 and I was thinking buying an Ryzen 5 7600X, I think is enough for 1440p gaming. For the MB I was thinking Asrock B650 Pg lightning but the Ram is a problem, I really want to get to 6000mhz CL30, what memory do I need to buy? I have hopes for this Agesa 1007 but I don't have then time to overclock some.
I have that set up and no reason to get 6000 CL 30. I have 6000 CL 38 and it runs very well.
Planning Pro-art creator motherboard for my move to 7000x
128 gb on a 16 core threadripper feels amazing on my workstation, I'm running so many VMs crunching CI&CD and other stuff, love it.
Some day I might upgrade to a 32 core 2x series, but at that point, having a Zenith Extreme that is basically a prototype, it might be better to completely migrate to a new platform and get the 64 core version directly, I can still run this machine at least 5 more years.
yeah if you're still happy with its performance, I would at least wait for zen4 Threadripper to come out. Or longer if you don't want to adopt early again. That should be a significant uplift over zen2/3 as well, and maybe with Intel at least trying to compete again the prices may come down a little in the near future.
Can you still set VCORE SOC higher than 1.3V manually or does AGESA clamp that too?
Did you perform memtests?? What do you mean with "stable"?
Since just booting into stupid windows isn't stable per definition...
It might be best to just wait a bit longer for 64 GB UDIMMs to come out. They should arrive within a year and hopefully with zen 5 faster speeds with four DIMMs is achievable.
I'm still waiting for 16GB DDR3 UDIMMs 🧙♂️
@@shanent5793 they actually existed for a very short period, the only CPUs where the IMC could handle them was Intel’s delayed consumer Broadwell. But the same year Skylake launched with DDR4 that initially came with 16 GB UDIMMs so no manufacturer really cared about producing DDR3 16 GB UDIMMs.
@@abavariannormiepleb9470 aww missed it. I bet a late production AMD Vishera could drive em!
Nice work. So effectively you are saying ASUS, Gigabytes not too good for rams. ASRock is better and MSI is the best for ram. Thinking of moving to AM5 with 192GB ram.
96GB G.Skill Flare X5 5600 on an MSi MPG X670E Carbon WiFi with 7950X3D? Please advise. Mobo coming in the mail on Wednesday. I'm a content creator that tried 128GB TEAMFORCE Vulcan 5200 4x32GB on an X670 Aorus Elite AX and had to send back mobo and RAM kit. Trying this new mobo, 2 DIMM config for a 96GB setup. I need lot's of RAM! You think this'll work? AM5 is so sketchy :/
You ever do a collab with buildzoid? This seems right up his alley
This reminds me of how "picky" AM4 was (well, it was, so...) and nowadays you can slam fire 4x16s into even a lowly 3000G and it'll work /every time/ to at least 1600mhz FCLK.
Can confirm, anecdotally. I built a little test system with a 3000G when I suspected to have a faulty DIMM in my main system and decided to just do a couple of days of more thorough testing of all DDR4 sticks I own. I was very surprised that I could mix all kinds of funky mismatched configs of cheap low end memory and higher end kits, 1, 2, 4 sticks or even 3, and it all POSTed and ran stable. I really didn't think anything before a zen2 CPU to handle that so well, but it seems the early pains were either dealt with through AGESA-updates or only were an issue on 300 series MBs (I used a B450 board).
I got 192 to post once on my board. 😂 I just went back to 96. Its plenty for me and I can get it going fast.
i do researching everything, but i can not affored hardware yet , thanks.
I don't understand why memory controllers lost so much performances when using 4 DIMMs.
The signal gets muddy with the increased load. It takes more time for each bit to settle high or low, hence the lower frequency
Sounds like I should skip the 7000 series. Sitting here happily with a 5800X with 128GB of RAM.
Yes you should wait. Still dealing with ddr5 headaches. I am seriously considering going back to ddr4 to avoid random blue screens that I can't seem to pin down.
This is why I hate DDR5. I'll stick with my TR PRO DDR4 setup... :) Great video and information though!
GSkill actually juuust got their 96gb kit 5600 mhz with EXPO out.
Ordered it yesterday (F5-5600J4040D48GX2-FX5), rated for 1.25v.
Hopefully im lucky and fine running them out of the box. With the 7800x3d it shouldnt matter really that its 5600 instead of 6000.
Personally i just skip this gen and hope that we will see that the Ryzen "8000 series" is just more plug and play. I did order a 7800x3d platform for my rig (Currently using a 5900x, was gonna move that into my backroom server), but ended up returning the parts with the whole debacle of SOC voltages. Been reading a lot of complaints lately, and i just personally cant be arsed using a unstable system, or leaving so much performance on the table by running below 6000 MHz(As shown by GNs recent performance benchmarks).
Also obviously considered Intel, however the power draw of their CPUs just feels so completely unacceptable that is also a nogo for me.
When ECC support?
Hello vSoC, Wendell here.
I would like the other video, pretty please :)
whats this cpu cooler
48 gig dimms. Wow, and here I thought my par of 16 gig dimms was overkill for my desktop.
I don't remember having anywhere near the issues DDR5 does when we made to move to DDR4, DDR3, DDR2, or DDR in the past. I honestly think the standard simply isn't ready.
Just a couple weeks ago I had a build where 32gb of DDR5 7200 wouldn't stabilize above 6000 and straight up refused to post at 7200. And that was on a far from cheap z790. Testing individually only one stick could hit 7000. Returned the DDR5 for replacement and the next kit worked ok after enabling and disabling xmp several times and waiting through training each time so I know it wasn't the motherboard. We don't even have to go into trying to run 4 dimms of DDR5.
That shit's not normal and I'm tired of people pretending it is just cause they want the latest and greatest. We're surrounded by products at insane prices that are falsely advertised at speeds they _might_ be able to hit in real life and only on the most expensive motherboards and no one sees a problem with this?
I'm quickly tiring of these companies pushing their hardware past it's limits, false advertising at unheard of levels that should be deemed illegal, ever diminishing quality control, and using ridiculous amounts of uncoolable power, all so they can charge us the highest prices in history.
I've been building systems for 2 1/2 decades and never can I remember having as many hardware failures as I've witnessed over the last few years.
I had many issues with DDR2-800 on AM2; requiring several BIOS revisions to ultimately work properly.
Zen 1 was absolutely abysmal with memory. I had to run at safety speeds on my 1700 using 64GB of Corsair LPX.
Then I replaced it with a 3700X...which to this day I can't get either that RAM or a 128GB kit of 3200 to operate at full speed.
It needs to drop to 2666 to run.
If you look back there were tons and tons of issues with DDR2, DDR3 was better, but DDR4 had significant issues on both Zen (as mentioned) and on the Skylake platform when it launched.
Regarding Zen 1, just google "Samsung B-die + Zen".
Finally, it's != its.
@@tim3172 Sounds like you just have bad luck. You always _hear_ about issues cause that's good click bait and always screamed the loudest, but I never personally had near the problems with Pentium 1 2 and 3, k6, Athlons, or Core when it comes to memory. My Zen3 has other problems now but at first I had to keep swapping the memory around and testing single sticks, and I've had the same issues with 10th 12th and 13th gen with the DDR5 being noticably worse. And NEVER have I seen SDR, or DDR1-4 straight up refuse to run at is rated speed like I've seen with DDR5.
Wendel, when it comes to computers I am a beginner/builder and have only built 1 so far but I want to build another soon. Parts: GIGABYTE B650 AORUS ELITE AX,Rysen 7800x3d, GIGABYTE AORUS GeForce RTX 4080, 1000 watt power supply Seasonic Vertex and 360 AIO or EK-Quantum Power Kit D-RGB P360and Lian Li 216. My problem is the Ram and want G Skill neo 6000 30-38 timing but what would work best to just apply Expo 2x16 or 2x32 and have it work and are my other parts good or should I use different motherboard like an X670.
Just use 2 dimms and you should be fine. 2x32 for future proof and cost is not much more than 2x16
@@Level1Techs Thank you very much for getting back to me.
7:09 What the fuck was that~? Lmao~ 😂💀
Those memorie kids are really special. They never work, like I wanted. 😁
i really dont get ddr5. you want ddr4 ram at this speed and amount? but it, plop it on in and maybe give it .5 more volts.
if it was going to be this much of a SS, why not just hold off on ddr5 for a bit.
Mortgage or memory that is the question...
How'd this work with mITX? Cuz most boards are limited to 64GB max >_>
Are they actually limited or did the manufacturer just specify 2 times maximum DIMM size when 32GB was the maximum size DIMM available?
96gb works fine :)
@@Level1Techs Crikey! Thank you on that info :D
ah yeh ramdisk is back on the menu boiz and ladies
With the older Intel systems you could chuck in any miss matched memory sticks and they'd work fine. With AMD you don't mess about. You make sure they all match. Ideally you use two rather than 4 for stability.
I'm still running an I7 4790k on an Asus z97 Pro, when I added a second 8Gigs 2133Mhz kit (same exact kit) to run 16Gb it was a total nightmare, it wouldn't post at all, I think I spent close to 4 hours just throwing the Dimms at random until it finally posted, would run my previous manual configuration (2133Mhz with slightly tightened secondary timings). I don't know what I did to finally make it work, it just finally worked at some point even though I had already tried everything I could think of, I sure as hell never touched the Dimms after that to find out.
Ideally you always make sure to have the same. However I found AM4 to be surprisingly forgiving as well. At least with 400/500 series motherboards that is - I never owned one of the first gen ryzen boards that seemed to have much more issues.
I suspected one DIMM in my main system to be faulty and build a little test system to run all memory sticks I own thorough testing. To my surprise I could mix and match all kinds of funky configurations with 4 (or even 3) sticks, from very low end OEM cheapo sticks and higher end 3600 kits and got that to POST and run stable no prob (of course limited to speeds/timings the slowest stick can do). And that even worked with my Athlon 3000G that I used in my test system. I expected a Zen or Zen+ CPU to really suck at this, but even that one handled that pretty well. This is anecdotal and limited sample size though, so take this with a grain of salt.
@@Hugh_I My experience could be out of date. Having had to be very careful on the first RYZEN system to make the memory stable I've not risked it. I have a 4 stick 32GB X470 system that won't do XMP properly. I have just built a new B450 system with 32GB in 2 sticks of 3600MT memory. That also does not do XMP safely. I've manually clocked it to 3200MT and manually set the voltage to 1.24v. It's all a bit fiddly. Next time I'll buy 3200MT RAM and not try messing about with the faster stuff.
Yeah, Intel's first-47th iteration of a quad core CPU didn't require too much memory bandwidth.
Now that we've doubled and quadrupled the cores memory bandwidth is an issue.