I'd strongly recommend putting a fixed-value resistor ~3X the value of whatever pot you use between ground and the pot to limit the max overvolt to something probably survivable like 30%. Without that resistor to limit the adjust range (ex.: 27-33k for a 10k pot), you can accidentally end up sending 12V to core/hbm/whatever by turning the pot the wrong way. That also has the benefit of making more of the pot's adjust range usable. An even better option would be to use a pair of fixed value resistors to provide the maximum overvolt feedback signal and then use the pot to trim the Vout-FB resistor to reduce the overvolt. This way, you don't have to worry about the pot's wiper contact noise messing up the feedback signal as much. With only the pot in the circuit, bad wiper contact could send massive voltage spikes out of the VRM.
did I not mention that you should put a resistor on the GND side of the pot to limit the max overvolt? As for the wiper contact issue a resistor to GND actually wouldn't do anything. The moment that the VS+ pin isn't connected to Vcore you're gonna get a burst of 2.4V before the VRM shuts down(no voltage controller used on GPUs will let you go much past 20% duty cycle so 12V is not gonna happen bu 2V+ is still really bad). So for the wiper contact issue you would want a resistor going from Vcore to VS+ to make sure that VS+ is never disconnected from Vcore. I wonder if I need to release a revised version of the video now.....
If you mentioned the resistor to GND, I missed it. As for the resistor from VSS to sense, you can use the pot itself for that: connect one end of the pot to Vss and tie sense to wiper+other end of the pot, this way you never have more than the pot's maximum value unless the carbon track fails. (Although using a parallel resistor, preferably as an SMD divider on the board, would have the benefit of lowering noise on the sense line.)
Despite having a Vega 64 myself, I'm not too intereseted int how to voltmod it. I'm just to casual for that. But the second part explaining the conpect itself was pretty interesting. It helps knowing what buildzoid does / talks about in his own modding projects and oc livestreams. While realizing 10 minutes is the 'best' length on youtube, I'm kinda sad it wasn't 30 minutes. Longer.
Yäy, more advanced stuff tutorials :D I won't do this mod because before my card thermal throttles (which should be fixed once I slap a waterblock onto it) it reaches 1742MHz but still nice to see more of this. Keep it up!
Hey, Buildzoid, I was a bit sad you didn't have any TR4 videos. I was also sad I couldn't find any pictures of an ASUS Zenith without the VRM heatsinks. Well, a few weeks go by and I have a Zenith sitting in its box while I wait for other parts and I'm 100% going to take that heatsink out because one of those parts is a monoblock. If you have any interest, I can take a few pictures of its naked shame for you to potentially make some content in the future
I Am using Alza long time as shop for PC parts. But come on, Alza! We in Europe can use that free shipping as well as UK customers. That would be sweet.
When you're explaining the HBM mod are you sure the two resistors you noted that needed removal are the correct ones? It looks like It should be the two leftmost resistors out of that set of four, not the center two. It looks like there's a differential pair of traces coming from the left two resistors which would make more sense to me. IIRC you've said before that there's probably no reason to do that mod anyway so not a big deal. Anyway thanks for the cool videos on GPU PCBs! I'm really enjoying them.
If you try to reduce the rumble in this video, you definitely accomplish it. It`s way more understandable than most of your other videos, with all the info that is needed. If this is what you do with a script, please keep doing it.
Eyo buildzoid bit random but got any tips on soldering back one of the shunts on titan x(m) pcb? It lterally fell off midgame of r6s, the old solder was eaten away by cl liquid ultra :p
What is the purpose of those 2 resistors? 0 ohm resistors to couple to Vout to the sense pin? why 2? A schematic/drawing and some in depth explanation would have been nice. there are no resistors in the design example for the (a.f.a.i.k) comparable IR35201.
What is the capacitance of the mlcc on the feedback pins ? I'd like to know since the potentiometer 's resistance combined with the capacitance would create a low pass filter, which if not calculated correctly, could introduce a significant delay in the feedback voltage.
you're talking about a RC Integrator Circuit right? Once the voltage is stable, this shouldn't matter right? so this would be a problem at initial startup voltage regulation or large transients, right? Overshooting due to delay (capacitor charge), and the VRM controller trying to level out its output. Or am I misunderstanding this? I'm trying to understand what you are stating here.
Almost 2 month ago i posted on your blog to check the Vega SoC clocks to leverage if any possible improvement. Would have brought some good content. I noticed just now users get interested to it on OCN, maybe you will read this one this time and give it a peek. Could bring some interesting for oc and performances for bench. Have fun dude! 0/
Dude interesting as hell! I never would thought it was even possible..my wife is gonna hate me..now how do you cool it? lol will traditional custom loop work?
+Buildzoid how would you go about removing those restors? Can it work if i just solder resistors like you did on the Vega FE edition on your previous mod video?
i got a vega 56 and i donno if the results are a lie or not. it says its getting 1719mhz peak core with 950mhz ram. stock bios 50mv undervolt stage 6 and 7. hbm is 50mv overvolt. max fan setting is 3400rpm and it doesnt get hotter than 62C. im gonna flash the bios when the warranty is gone. though i donno if its worth it.
So theoretically, what does this mean for a high end overclock on an RX Vega 64? Does it catch up any more than the current overclocks on a 1080? Does it get any closer than the 1080 TI?
Thanks man, need some for a old motherboard that need recapping, I was looking for the aluminium electrolytic polymer capacitors but they so expensive on ebay
I'd strongly recommend putting a fixed-value resistor ~3X the value of whatever pot you use between ground and the pot to limit the max overvolt to something probably survivable like 30%. Without that resistor to limit the adjust range (ex.: 27-33k for a 10k pot), you can accidentally end up sending 12V to core/hbm/whatever by turning the pot the wrong way. That also has the benefit of making more of the pot's adjust range usable.
An even better option would be to use a pair of fixed value resistors to provide the maximum overvolt feedback signal and then use the pot to trim the Vout-FB resistor to reduce the overvolt. This way, you don't have to worry about the pot's wiper contact noise messing up the feedback signal as much. With only the pot in the circuit, bad wiper contact could send massive voltage spikes out of the VRM.
did I not mention that you should put a resistor on the GND side of the pot to limit the max overvolt? As for the wiper contact issue a resistor to GND actually wouldn't do anything. The moment that the VS+ pin isn't connected to Vcore you're gonna get a burst of 2.4V before the VRM shuts down(no voltage controller used on GPUs will let you go much past 20% duty cycle so 12V is not gonna happen bu 2V+ is still really bad). So for the wiper contact issue you would want a resistor going from Vcore to VS+ to make sure that VS+ is never disconnected from Vcore.
I wonder if I need to release a revised version of the video now.....
If you mentioned the resistor to GND, I missed it. As for the resistor from VSS to sense, you can use the pot itself for that: connect one end of the pot to Vss and tie sense to wiper+other end of the pot, this way you never have more than the pot's maximum value unless the carbon track fails. (Although using a parallel resistor, preferably as an SMD divider on the board, would have the benefit of lowering noise on the sense line.)
Despite having a Vega 64 myself, I'm not too intereseted int how to voltmod it. I'm just to casual for that. But the second part explaining the conpect itself was pretty interesting. It helps knowing what buildzoid does / talks about in his own modding projects and oc livestreams.
While realizing 10 minutes is the 'best' length on youtube, I'm kinda sad it wasn't 30 minutes. Longer.
soon: videocardz.com/review/colorful-igame-gtx-1080-ti-kudan-review/3
Actually Hardcore Overclocking Are you getting it? Or...
Link doesn't work. It says Error 1011, Access denied: The owner of this website (cdn.videocardz.com) does not allow hotlinking to that resource
ExtremeRampage weird, it works for me.
Any how it's a picture of the vrms on the 1080 ti. It's a 16 phase vrm
No it doesn't work but thanks for telling me, it's going to be pretty cool seeing what Buildzoid will do with such a beast card.
Edit: Now it works
Actually Hardcore Overclocking uhm hey me again maybe you remember. This one was hof power board. (Same scaling 1 to dead Vega fe)
Yäy, more advanced stuff tutorials :D
I won't do this mod because before my card thermal throttles (which should be fixed once I slap a waterblock onto it) it reaches 1742MHz but still nice to see more of this. Keep it up!
Hey, Buildzoid, I was a bit sad you didn't have any TR4 videos. I was also sad I couldn't find any pictures of an ASUS Zenith without the VRM heatsinks.
Well, a few weeks go by and I have a Zenith sitting in its box while I wait for other parts and I'm 100% going to take that heatsink out because one of those parts is a monoblock.
If you have any interest, I can take a few pictures of its naked shame for you to potentially make some content in the future
I Am using Alza long time as shop for PC parts. But come on, Alza! We in Europe can use that free shipping as well as UK customers. That would be sweet.
Hello, Buildzoid! Are you gonna do Intel Z370 VRM crash course? PLS PLS PLS DO IT! We are waiting it so much!
When you're explaining the HBM mod are you sure the two resistors you noted that needed removal are the correct ones? It looks like It should be the two leftmost resistors out of that set of four, not the center two. It looks like there's a differential pair of traces coming from the left two resistors which would make more sense to me. IIRC you've said before that there's probably no reason to do that mod anyway so not a big deal.
Anyway thanks for the cool videos on GPU PCBs! I'm really enjoying them.
awesome video, thanks man!
If you try to reduce the rumble in this video, you definitely accomplish it. It`s way more understandable than most of your other videos, with all the info that is needed. If this is what you do with a script, please keep doing it.
Eyo buildzoid bit random but got any tips on soldering back one of the shunts on titan x(m) pcb? It lterally fell off midgame of r6s, the old solder was eaten away by cl liquid ultra :p
What is the purpose of those 2 resistors? 0 ohm resistors to couple to Vout to the sense pin? why 2? A schematic/drawing and some in depth explanation would have been nice. there are no resistors in the design example for the (a.f.a.i.k) comparable IR35201.
What is the capacitance of the mlcc on the feedback pins ? I'd like to know since the potentiometer 's resistance combined with the capacitance would create a low pass filter, which if not calculated correctly, could introduce a significant delay in the feedback voltage.
Which was what killed his Vega FE
you're talking about a RC Integrator Circuit right?
Once the voltage is stable, this shouldn't matter right? so this would be a problem at initial startup voltage regulation or large transients, right? Overshooting due to delay (capacitor charge), and the VRM controller trying to level out its output. Or am I misunderstanding this? I'm trying to understand what you are stating here.
Almost 2 month ago i posted on your blog to check the Vega SoC clocks to leverage if any possible improvement.
Would have brought some good content.
I noticed just now users get interested to it on OCN, maybe you will read this one this time and give it a peek.
Could bring some interesting for oc and performances for bench.
Have fun dude! 0/
Dude interesting as hell! I never would thought it was even possible..my wife is gonna hate me..now how do you cool it? lol will traditional custom loop work?
awsome tutorial.
did you script this one,cuz it seems more structured
nope sometimes I less of a mess than other times
+Buildzoid how would you go about removing those restors? Can it work if i just solder resistors like you did on the Vega FE edition on your previous mod video?
i got a vega 56 and i donno if the results are a lie or not.
it says its getting 1719mhz peak core with 950mhz ram. stock bios 50mv undervolt stage 6 and 7. hbm is 50mv overvolt. max fan setting is 3400rpm and it doesnt get hotter than 62C. im gonna flash the bios when the warranty is gone. though i donno if its worth it.
if anyone else has a vega 56 id like to know what your getting
So theoretically, what does this mean for a high end overclock on an RX Vega 64? Does it catch up any more than the current overclocks on a 1080? Does it get any closer than the 1080 TI?
I would love to be able to have the disposable income to be able to risk this.
*nice*
How do u have time for all this videos ?
Where do you source your LN2?
in the UK Mansfield Cryogenics does LN2 deliveries
I have have a feeling they aren't international.
Does it make sense to increase the VHBM? to get the ram over 1100mhz?
From my testing even 1.42V on the HBM doesn't help for going past 1100MHz on ambient cooling.
That's nice to know. So no hard modding required for my card, as mine reaches 100MHz at 1.05V dead stable.
Doody cycle.
What?
But will you mod my 25 rx vegas?
AnalKarl der vierte I know.. never thought I would be but, alas here we are
You'll get better resale value if you don't hard mod or degrade the cards.
SlavjanA True. Softpowerplay tables is working for what I need, but it would be fun to try 4 x C.F. overclock 3dmark
3rd?
First !!!! (almost)
Hahahaha, u're second, u gor rekt!
*got
lol i saw "published 2 second ago" in my feed
xD
WHere do you order your caps from for the card mods?
digikey
Thanks man, need some for a old motherboard that need recapping, I was looking for the aluminium electrolytic polymer capacitors but they so expensive on ebay