Hi, I have two overclocked 660s and I've been having an issue that from what I've read on the net seems pretty common, ie a few games crash, then work fine if I remove 25mhz or so from the overclock. This happened when I only had one card too BTW. My problem is that if I lower it using nvidia inspector/gigabyte's gpu app/evga precision et al, after a seemingly random amount of time the card just reverts back to the full 1033 mhz and from then on it's impossible to lower it back down. Is there a more effective way of doing this? Is the overclock hardcoded or is it set in the card's bios? This isn't a heat issue btw, I never saw my card go over 63 (during benchmarks, not games) when there was just one and with two the hottest one never goes over 58c (also in benchmarks).
Hi guys, the problem wasn't the underclocking, it was the fact that the card was just reverting back to 1033 without a reboot/soon after, and lowering the clock again just wouldn't work. I just found out what it was though by chance; skype. Skype was somehow maxing out my GPU clock, by just being open and not even in a call, and blocking me from lowering it, until I closed skype at which point it would instantly go down to idle (324mhz or whatever it is). Weird thing is, I remember noticing this before, last year, but just... forgot about it. Ah well, thread tangent: if anyone knows wtf skype is doing with my GPUs, I'd LOVE to know. I'll probably give afterburner a shot anyway, just to be able to save the underclock and have it do that on startup, so thanks guys.