Was playing World of Warcraft the other night and went to plug in my headphones and a loud, annoying sound started and my system locked up. I could not alt-tab or ctrl-alt-del out of it so i hit the reset switch. Machine powered up but thats it, no beeps, nothing. The MB is a ASUS P4P800 SE with a p4 2.4A Intel cpu. Here's what I've tried so far: - let it sit for a day, powered on, no beeps no post. - removed ram, nothing - put in a different cpu, a p4 2.4, with and without ram, nothing - took board out of case with cpu and ram, nothing - removed everything from Board (no cpu, no ram, etc), no different Any suggestions?? I know a RMA is in my future, but I just want to see if any one else has some suggestions. Thanks. side note: I also tried testing the p4 2.4a in my asus P4S8X board (which doesn't support 2.4A chips) and i got and loud, soft beeps (BEEP, beep, BEEP, beep, ...) i guess to let me know that the chip was incompatible but I dont know if that also meant that the chip is ok. ??