Ok, I have the following motherboard to diagnose for a friend.http://www.asrock.com/MB/overview.asp?Model=939NF6G-VSTA
Now I stripped it down and found the power supply unit had completely burned out. So I put my own PSU in it, and the power light came on , noises from hard drive, cd open tray and lights all working ok. However no output from the monitor. Monitor is not the issue as this is the one im using with my own setup.
The fan is spinning ok, to rule out the graphics port, I put in the working PCI express graphics card from my own PC, which did not work on the faulty system.
How do I know if it is the processor or the motherboard, or even both that I need to replace? There are no noises coming from the motherboard, i thought there was usually error beeps, but I am getting none of them.
Any advice or tips would be welcomed, thanks.