Major GPU failure due to non-exsistant overheat

[Megajames75]

My GPU (8800 GTS 512 (G92)) keeps misreporting temperatures then crashing due to overheat, it maxes out the fans due a a perceived high temp of 240c-120c. The temp on Nvida Control Panel and PC Wizard should be around 60c, and it flickers to that some times, but jumps around all over the place. It does not feel hotter than normal, but it crashes very often, (the screen says no signal), while the rest of the PC works. I have tried using the the latest driver, and latest beta driver. Any help?

[Aaron_8015]

Mabye a clean? Although it sounds like its on its last legs.

[Megajames75]

The card is less than 1.5 years old, has not have very intensive use, and have not been overclocked. The temps it shows are not random, they seem to be one of these 4:

64c
128c
192c
and a temp around 240c that flickers to fast for me to see.

[Aaron_8015]

Well mabye try these to programs to double check temps.

EVGA Precision 1.8 download from Guru3D.com

CPUID

[JLK03F150]

What brand is it? Some makers have limited lifetime warranty, some have 3 year warranty, & some are only 1 year. If you have a good warranty, just RMA it.

[Megajames75]

Ok, EVGA Precision, Pc Wizard and Nvida Control panel report one of the 4 temps, and report the same.

CPUID reports 60c all the time, other temps are correct, but will not change even if I speed or slow the fan.

Can I disable the safety shut down, as the card is not hot, I am happy to run at fan myself, but the card crashes I assume for safely.

Card is ASUS, I will look into the warenty, but I just want a quick fix as I will get a new DX11 card in the next few months.

[Cajunheat]

I agree the sensors are way off... no way can there be temps of 192 to 240 degree c. those are meltdown temps. Since it is more than apparent that your sensors are malfunctioning, any program you use will read it the same way (they can only report what the sensors tell them to). The only work around I can think of is to turn off or raise the shutdown threshold with it's adherent dangers. I think you also have a overheating problem along with your sensor problem. Have you tried cleaning your heatsinks (CPU and GPU)?

[Megajames75]

My CPU heat sink is massive fan, cools it to basically nothing. No issues there. My GPU is encased in plastic, no idea how too, or even if possible to replace heatsink.

BTW, EVGA Precision shows that the temp makes a perfect graph, not one flicker of a real temp.

[Cajunheat]

I assuming your card is a EVGA brand, if so you can remove the heatsink without nullifying your warranty (you can do this with XFX also). Both companies support hobbyist and allow aftermarket heatsinks. I would try cleaning the heatsink before replacing. I don't know about 8800 gts 512 but, the 8800gts 320 had a solid heatsink. Otherwise the only thing you can do, is to use compressed air to blow out as much as you can. None of this will help the malfunctioning sensors, maybe someone else with more experience can help with that.

[Megajames75]

As I said above it is ASUS brand, I have no idea how to remove heat sink, the card is encased in plastic.