I recently installed a E8400 Core 2 duo on my P5K Asus motherboard. First two times I started up the PC it opened up to the ASUS boot screen and was frozen. The third time I was able to press setup but it promptly froze. Now nothing even shows up on the screen.
UPDATE: Reinstalled the old processor, updated the bios, installed the new processor. Wept tears of joy.
Good to know about the ram, I was afraid it might burst into flames.
Using the ASUS bios updater tool right now. Just flashed the bios (why the hell not) and it's now loaded with default. Going to use the updater to load the new Bios and pray to that vengeful bastard in the sky.
Update: God damn I hate whoever made this mobo/heatsink, the pegs never get locked in place properly.