New build, no display, no keyboard lights

[Delboy]

I've just put together a new build. But when the system is turned on, all the fans spin but I get no display from the monitor nor do I see any lights on the keyboard at all.

I've taken the RAM out and it beeps, i've even taken the CPU out and turned on (no beeps though!). It's an ASUS p5E mobo with a Nvidia 8800GTS card as the primary display.

I've taken it all to bits and put it back several times with no success.

Any ideas?

 

[Delboy]

Skiddilliplop was spot on though.

Ripped out the mainboard, stuck a cheapo one in with all the same components and hey presto, all it whirred into life.