I was using my comp, read my sig
and suddenly, it blacked out
I went nuts
so i removed a memory stick and now working, what's wrong
also, i removed cpu and putted it back...but it worked after the memory..

i reinstalled the memory stick back, everything is back to it's normal state

But any reasons why it blacked out?

Power surge, overheating, system crash

I think it was over heated, but that would be a first
I turned on the machine again, and nothing would work for a while...
But it's okay now...but thanks for the answer, i hope to hear more about it