Unhappy PC

Have a problem with my Asus K8V 754pin motherboard system. The computer starts up with all the fans etc going but the monitor stays switched off.

Have tried another graphics card and a known working hard drive with XP Pro on from my spare machine.

Has anyone got some ideas. The bios has been updated ASUS themselves to the latest version.

 

is it pluged in at the wall

 

Yes it is plugged in at the wall, its the first thing I checked lol.

Just tried removing everything and putting a bit in at a time to see if that would start it. I am confused because if it starts up then power must be getting to the motherboard.

Maybe when I originally tried to do the bios something happened at the same time

 

Tried resetting the CMOS, removing the battery for a minute or so. There are no beeps either, all the fans start up and thats it.

 

Just because the fans are running does not mean that the computer is working.
Using the motherboard documentation and a DVM check that all proper voltages are present at the motherboard.
Check for any loose components, check that the CPU is properly seated, check that the memory sticks are properly installed.
Watch the disk activity light, does it blink on and off, does the HD spinup.

 

Check to see if the motherboard is shorted to the case somewhere.. Also, try another power supply with it..