i was reinstalling my waterblock and 1 of the pads on my cpu fell off and i lost it....so i figured it was ok and i put the waterblock on anyway and when i booted up...nothing. my heart started raceing and i took out the cpu, and sure enough i chipped the core on the corner of the side where the pad fell off, well to make a long story short i ended up shorting out my powersupply (dunno how) so i put another one in and everything worked fine including the chip that is cracked (thank you god). i know how you feel, its the worst feeling in the world. Good luck