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.