Ok so heres the deal ... i have built a few pc's including my own and some friends. my roommate just recently fried (not sure slow degrade in CPU over about 6 months) a P4 478 chipset 3.2 G. so we decided to upgrade him to a P4 LGA 775 chipset 3.2G. Have a DFI MB running a ati 9800 pro 8 x agp and 2 gigs ( 4 x 512) of pc 3200 ram. here is problem ..... we assemble everything ( no issues ) update everything ( also no issues ) and are up and running for about 2 weeks solid .... last night we are in the middle of Battlefield 2 and his monitor goes black .... but case is still lit up and all the fans are running normal .... we thought we fried the ATI. swaped in a dif 9800 and same results .. nothing ... case lites fans turn but monitor, keyboard and mouse do not light up. we have also swaped in his old HD jsut to check and see ... same problem ..... so we return the DFI MB and get a new one thinking this would solve it .... nothing ... sigh could the CPU be bad ??? we are at wits end ..... sorry for length of post but we are about to take this thing to the backyard blow it up ... please help!! ( oh and we inspected the system right after the crash lastnight and there was no apparent heat build up)