Motherboard problem. please help

[oxygene]

Ok straight into the problem. The computer will post. get a nice cool single bios beep. No picture comes on monitor. Tried onboard gfx and seperate gfx card, no joy. Fans spin up, drives spin up. Monitor works fine on another machine, so does gfx card. Psu also fine.

*edit resetting bios didnt help either.

 

[megatron]

My pc does this cause the digital signal is confused by my monitor as being analogue resulting in a blank screen. Im not saying this is your problem. I know its just a monitor problem with mine cause I can here the bios bleep and the keyboard flashes and it responds to del (enter bios) and f10 + return (save and exit bios).

My problem is an uncommon one though so it might not be your problem. I solve my problem by not allowing my monitor into standby and wait 15min between cold boots.