PC Boots but nothing shows on screen

[philbo01]

when i boot my pc all the lights come on inside and the led on the front but nothing shows on screen.The monitor power light is yellow (power save mode).I have tried chnaging the monitor, the mobo, the graphics card and the ram.
Any help would be much apreciated thanks

 

[Cazca]

Check out the NO POST guide in the guides forum. Should help

 

[kimsland]

I have tried chnaging the monitor, the mobo, the graphics card and the ram.

Wo!

There's only one thing left, the Power Supply

I agree the Tutorial: No POST (Power On System Test is a good first option though

 

[nyashawm]

boot failure

change your processor. three things can prevent bootup
1. board or processor
2.memory

graphics card and things like that should at least give u an error beep.
if you switch it on without memory it should beep.if it doesnt either board/processor is kaput