- Feb 1, 2025
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Hello, thanks for reading. I currently have an ASRock Challenger Pro 6750 XT GPU in my system. I also have an ASRock Challenger Pro 6700XT awaiting funds to be used in a PC for my son. Both have identical problems and have received identical treatment.
The following applies to both GPUs.
When I first got the GPU everything was fine. Having upgraded from a 1050 TI I was very happy with the performance. Temps were only concerning in demanding AAA titles but adjusting the settings took care of that. After around 6 months is when I began having problems with my GPU temps. I adjusted the fan curve to be more aggressive, which had a marginal impact. When that didn't work I applied a 5% under volt. That helped for a short period and now it's necessary to keep hot spot temps down, even in low demand games. I repasted with CryoFuze Violet , and that worked for a short time. I replaced the thermal pads on the 6750XT with 1.5mm as well
Regardless of what helped keep my hot spot temps down, the overall GPU temp has always been low. I don't keep a log of the exact numbers, but GPU temp is typically ~45C when the hot spot hits 110C and does a thermal shut down. This even happens with my GPU utilization below 20%! Having been trying to find an answer for this for a while this seems to be an issue for many others and all AIBs.
I came across a discussion on a forum that mentioned a possible cause that made sense. I haven't been able to explore this yet, but the user brought up that the mounting pressure of modern GPUs and CPUs combined with the difference in thermal expansion between the dye and heatsink causes thermal pastes to be squeezed out over time. They proposed using a PCM type of thermal pad like this. The reasoning was that the pad will liquify during use, but after the GPU cools the pad will re-solidify and contract as it does preventing the squeeze out seen by thermal pastes. I'm hoping to have $20 to spare next week to test this. I'll provide an update if I see immediate improvement or not, and hopefully remember to come back in a few months to follow up.
Currently I can only game in low demanding titles with settings set to low and capping FPS to 30. Even then I have to be mindful of areas that hit the GPU a little harder.
I'm open to suggestions and any questions. However, the following is a list of responses that won't be helpful because they would not be helpful or are things I have already tried.
CPU- Intel i7-11700F
GPU- AMD RX 6750XT
RAM- 16GB (8x2) DDR4 @ 3000 MHz
PSU- Corsair CX750M
MOBO- Gigabyte Z590 UD AC
Display- 2560x1080 @60Hz
I forget the specifics, and I don't think it matters, but I have a 7.1 channel Creative sound card and a Wi-Fi / Bluetooth PCIE card.
All drivers, firmware, and BIOS are up to date.
GPU- AMD RX 6750XT
RAM- 16GB (8x2) DDR4 @ 3000 MHz
PSU- Corsair CX750M
MOBO- Gigabyte Z590 UD AC
Display- 2560x1080 @60Hz
I forget the specifics, and I don't think it matters, but I have a 7.1 channel Creative sound card and a Wi-Fi / Bluetooth PCIE card.
All drivers, firmware, and BIOS are up to date.
The following applies to both GPUs.
When I first got the GPU everything was fine. Having upgraded from a 1050 TI I was very happy with the performance. Temps were only concerning in demanding AAA titles but adjusting the settings took care of that. After around 6 months is when I began having problems with my GPU temps. I adjusted the fan curve to be more aggressive, which had a marginal impact. When that didn't work I applied a 5% under volt. That helped for a short period and now it's necessary to keep hot spot temps down, even in low demand games. I repasted with CryoFuze Violet , and that worked for a short time. I replaced the thermal pads on the 6750XT with 1.5mm as well
Regardless of what helped keep my hot spot temps down, the overall GPU temp has always been low. I don't keep a log of the exact numbers, but GPU temp is typically ~45C when the hot spot hits 110C and does a thermal shut down. This even happens with my GPU utilization below 20%! Having been trying to find an answer for this for a while this seems to be an issue for many others and all AIBs.
I came across a discussion on a forum that mentioned a possible cause that made sense. I haven't been able to explore this yet, but the user brought up that the mounting pressure of modern GPUs and CPUs combined with the difference in thermal expansion between the dye and heatsink causes thermal pastes to be squeezed out over time. They proposed using a PCM type of thermal pad like this. The reasoning was that the pad will liquify during use, but after the GPU cools the pad will re-solidify and contract as it does preventing the squeeze out seen by thermal pastes. I'm hoping to have $20 to spare next week to test this. I'll provide an update if I see immediate improvement or not, and hopefully remember to come back in a few months to follow up.
Currently I can only game in low demanding titles with settings set to low and capping FPS to 30. Even then I have to be mindful of areas that hit the GPU a little harder.
I'm open to suggestions and any questions. However, the following is a list of responses that won't be helpful because they would not be helpful or are things I have already tried.
Hotspot delta is normally 20C.
Yes, but not 60+. That's why I'm here.
Improper thermal paste application.
Had this not been an issue prior to applying new paste and pads there would be merit to this. That being said, I'm no stranger to repasting. The extreme temperature delta here would indicate potential improper pasting, normally. In this case it appears to be a symptom of another problem though.
Pads not correct thickness.
Just use Google. 1.5mm is the thickness needed. I also compared the new pad to the old where it was not indented before replacing to verify.
Case fans and GPU fan curve.
Case fans are set to 100% with a positive pressure bias. 3 240mm on the bottom and 1 240mm on the front as intake with a 240mm on top as exhaust. I remove the screen on the top of the case when I'm using the PC too, but that doesn't have a noticeable effect. The air being exhausted is a bit warmer than ambient, but not hot enough to suggest my case is being heat soaked. GPU fan curve is pretty aggressive already. I've tried setting the fans to 100% to see if that made a difference but it did not. Fan Curve
Clean my PC
I do, and it is.
RMA it.
Far to late for that. I don't think it's a deflective unit though since I have had the same issue with 2 new GPUs. Could be extremely unlucky I guess but that doesn't seem likely.
Just buy and Nvidia GPU
Not here for fan boy BS, nor do I have the ability to buy a new GPU.
Yes, but not 60+. That's why I'm here.
Improper thermal paste application.
Had this not been an issue prior to applying new paste and pads there would be merit to this. That being said, I'm no stranger to repasting. The extreme temperature delta here would indicate potential improper pasting, normally. In this case it appears to be a symptom of another problem though.
Pads not correct thickness.
Just use Google. 1.5mm is the thickness needed. I also compared the new pad to the old where it was not indented before replacing to verify.
Case fans and GPU fan curve.
Case fans are set to 100% with a positive pressure bias. 3 240mm on the bottom and 1 240mm on the front as intake with a 240mm on top as exhaust. I remove the screen on the top of the case when I'm using the PC too, but that doesn't have a noticeable effect. The air being exhausted is a bit warmer than ambient, but not hot enough to suggest my case is being heat soaked. GPU fan curve is pretty aggressive already. I've tried setting the fans to 100% to see if that made a difference but it did not. Fan Curve
Clean my PC
I do, and it is.
RMA it.
Far to late for that. I don't think it's a deflective unit though since I have had the same issue with 2 new GPUs. Could be extremely unlucky I guess but that doesn't seem likely.
Just buy and Nvidia GPU
Not here for fan boy BS, nor do I have the ability to buy a new GPU.
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