Last night when playing Company of Heroes on mid-high settings game suddenly freezed and the screen went green and rippled. I immediately shut down my computer, as I realized this kind of errors are caused by overheating gpu. After turning on computer again I checked my GPU temperature log and max temperature was 57c. Right now the card is idling at 36c. I tried playing again a little later, but again - green screen and freeze.
I have tried overclocking my GPU once, but I havn't used oc in games as I have feared frying the card. I recently installed new GPU cooler, wich dropped temps a lot. After installing it I have played lot and everything have worked great even after playing long periods of time. That's why it was a little surprising to see such errors after maby 40 minutes of gaming. Just last weekend I played Company of Heroes many hours straight - no errors and temps stayed bearable.
So what to do now? Is it time to buy a new card if problems persist?
Yes, I used thermal paste, though I dont't recon it being Arctic Silver 5 brand.
Today I played Blur on nice settings and did not get any errors.
It could be the combination of those two. New CPU cooler?
You could also try EVGA Precision to manually set your GPU to 90% before you start gaming. If you don't get crashes, then you know your videocard was overheating and need the higher fan RPMs. After gaming, you can set the GPU fan back to 40%.
Thank you, I'll do that. I recon there is CPU fan speed setting wich is now on Auto. I'll change that. The CPU cooler is Intel's stock fan and heatsink.
I don't think I can change the fan speed manually, or at least I don't hear any effect. The fan is not connected to GPU's fan slot where the stock cooler was. It is in motherboard's fan slot, because the GPU's slot was a little different.