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Help! GPU showing 100C at Windows boot

schlitzbull

schlitzbull

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Feb 19, 2014
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Recent changes, I recently (~1 week ago) installed a NZXT G12 on my EVGA RTX 2080 XC Ultra. Install went fine, booted up with idle temps in the high 20s. Full load gaming in the low 40s.

I'll boot into Windows and see that my afterburner is showing my GPU at 90C!!! at 300MHZ. Pulled up NZXT CAM and confirmed the temp and saw the AIO (Kraken x61) pump was at 2400rpm. I've only seen it when fine tuning my overclocking and both times my system was not stable. The really weird part is, if I reboot, the system comes back normal with my temperatures correct (granted this time it took 2 reboots). After reboot the GPU is completely back to normal with full load temps not exceeding 42C. I assume this is some sort of software issue? I would think if the mounting of the AIO was incorrect the GPU temps would be high at all times.

I think I have my OC dialed it fairly good for now so hopefully it won't happen again. Have you guys ever experienced/seen this type of behavior before?

Edit: fine tuning my cpu overclock
 
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What does the EVGA Precision X1 show?

I would think its software if you're getting different temps all the time and a reboot fixes it.
 
I dont use X1 anymore because i always found it clunky. Ill install it so i can check it next time. Good idea.
 
Worst case just check it out in case EVGA is doing something funky with their sensors. Might be a bad sensor also, but that's unusual.
 
I installed it this morning and played some remnant. No issues seen. Temps hit 45C and idling in the high 20s.

If my aio pump is dying/not turning on, gpu temps wouldnt hit 90-100C (with the gpu idle running at 300mhz) in Windows would it?

Probably just going to chalk it up to a software glitch due to cpu instability.

Thanks for the responses.
 
The problem would have been lack of contact with the cooling plate if its not a software problem.
If the pump had died it would never reach 90C on boot because water can take a hell of a lot of heat before saturating and there is very little generated during boot.
I can turn my CPUs water cooler off and game for at least half an hour with no issues (did it by accident).
And my radiator is below my PC so there wont be any sympathetic water flow.
 
With that being said I feel fairly confident it was a software issue since I havent touched the cooler since installation. Just seeing the 90C at idle surprised me and I panicked lol
 
with one of my rigs i found that if im in the bios, some of the case/rad fans didnt come on. I thought something was borked for sure until i realized It was due to them being controlled by software vs the bios. So they stay off until the software is loaded during the windows boot.
The only way around it was to run them off of a fan header that was configured via the bios.
If your pump is running thru software that may be the problem.
 
I want to say I wired the nzxt g12 and the pump directly to the mobo. Ill double check.

Edit, yeah they are directly connectes to the mobo. I configured the nzxt x61 pump at install and should be a set it and forget it. So I think that portion is ok.

Very weird. Hopefully all is ok for now. Need everything working for tomorrows Doom Eternal release!
 
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hititnquitit said:
with one of my rigs i found that if im in the bios, some of the case/rad fans didnt come on. I thought something was borked for sure until i realized It was due to them being controlled by software vs the bios. So they stay off until the software is loaded during the windows boot.
The only way around it was to run them off of a fan header that was configured via the bios.
If your pump is running thru software that may be the problem.
Click to expand...
I've seen the same thing with AIOs plugged into mobo headers. If the mobo attempts to voltage-control the pump as though it were a fan, it will often not reach the starting voltage and the pump won't spin at all.

Set the header to full blast if you can. Those AIO pumps really aren't designed to (and don't need to) be speed controlled.
 
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