I am having trouble with a computer... its my friends and from what he told me this is what originally happened to the computer:
It make a weird loud noise and then the hard drive locked up and he was forced to reboot. He says this happened twice, I came up to see it happen and nothing would happen. The next day his computer would not boot up, his monitor shows that a computer is there (green flashing light) but that it appears to not be turned on, however, the computer is turned on, fans all run, the hard drive runs but nothing happens. It will not even boot up the BIOS at all, its like its not even on.
Here is what I've tried to fix:
Power supply, bought a brand new case and power supply... not the problem.
Intel P4 2.4 GB CPU, bought a brand new P4 3.0 GB CPU... not the problem.
Replaced his 2, 256 MB DDR memory sticks with my 1, 512 MB DDR memory stick... not the problem.
Unplugged both hard drives... not the problem.
Tested another monitor... not the problem.
Removed all PCI cards from the computer... not the problem.
Tested different working video cards... not the problem.
At this point the only thing I can think that would be the problem is the motherboard, however, it lights up, everything seems to be working, but I am totally stumped... any suggestions at all?