Huge problem here... just put together the following:

p5k deluxe
C2D E6750
4GB (4x1GB) Kingston ValueRAM 800MHz

The PC, most of the time when powered on goes through an endless "on-off" loop, turning on for 2seconds, then turning off, then turning on again, etc. On the few times it stays on, managed to upgrade the BIOS to the latest beta, but no sucess on the problem going away. One strange thing, it seems it works fine WITHOUT any battery on the mobo, of course this is not practical.

Ah, I didn't even try o/cing the thing.

Any thoughts? Thanks guys
it can be caused by multitudes of things( such as RAMs, PSUs and others), try posting your complete setup and maybe other can help too...