Hmm, well i got a Samsung T220 monitor. when it "goes out of sync", the monitor will go black, and the DIGITAL, ANALOG thingy on the top left corner will appear (when it's trying to sync with my digital or analog plugs, it alternates between digital and analog, like when i boot my pc and it tries to find my connection. what i think it is, is that the psu stops powering some parts of my pc. if it was my gpu, wouldn't it prevent me from running it at all?). i got no idea why it happens, i already ruled out RAM (i switched between them, nothing doing) i already ruled out my GPU (temps are low, and when i go ingame, sometime it'll actually go ingame and then go out of sync, and without any artifacts, and the capacitors on my gpu are good as new). i'm shooting for the PSU.... what do you think?

Yeah, but i'm running the pc normally now. it runs great.
is there any way to stress test my pc (and choosing which parts to test?) i'm getting Burnin test now, maybe that'll lead me to the culprit. i'd hate to waste money replacing something that didn't need replacing..

I'm gonna test everything except Video and 2d-3d graphics. i'll let you know

can't i just exclude the GPU from the test?

But this is weird. when the screen goes out of sync, the sound of whatever i'm doing will repeat itself on an endless loop, pc will stop doing anything, even if i press the caps lock button on my keyboard, it won't turn on\off. could the GPU really f up my entire pc? if it was the gpu, wouldn't the screen tear, or produce artifacts? even if it did cause the out of sync thing, wouldn't just the image get f'd up, but the rest of the pc work fine? i dunno, everything is pointing at psu or mobo

ok, i just ran a stress test on my cpu, gpu, audio, ram and hds. no errors...

What do i do?

Btw, i used BurnIn Test