Hello once again,
Ever since I bought my GIGABYTE GTX 660 I have been having problems with it. As of now, there is only one big issue with it. Whenever I boot up my computer, performance is poor. I'm talking 30-40 FPS in a game like MW2, while 90 is normal. The only way I can manage to fix this, is by rebooting. And I mean actually clicking the "reboot" button in windows. Just shutting down and then powering on again straight away does not help at all.
I have actually upgraded my PSU and memory. Problem occurred before and after system changes. I was thinking about RMA'ing this SOB, but first I'd try it in my dads computer. The card worked absolutely fine without any sort of inconsistent performance on benchmark.
I have also done a full system reinstall quite a while ago, but the problem persisted.
Only thing I can think of now is a BIOS update, but I don't want to if I don't have to. If I will update I will let you know if it helped.
Some concrete results:
Furmark 1280x720, no AA:
Cold - 49 FPS
Warm - 51 FPS
Unigine Heaven 4.0, Ultra Quality, Extreme tess, 8x AA:
Cold - 23.0 FPS
Warm 26.8 FPS