Possible MOBO or Driver Issue?

[zccm]

This computer is driving me crazy. It will not accept Win 2000 or XP. Managed to get it to accept ME and 98, but neither lasted long before errors started happening. Always on boot. Its like the hard drive is loosing files or information, like its real flaky. I am starting to suspect the mobo. Reason being, the original hard drive crashed hard, very hard. Windows XP and 2000 give the same error at the same time during installation....when windows tries to start and complete the installation. Sometimes the error doesn't show, but when it tries to finishing copying files, it can't read them.(esc to skip, etc. etc.)

This is what I have done as far as troubleshooting:
Tried 3 different hard drives, one out of my own working pc.
Tried different, but same type memory.
Changed power supply.
removed the ethernet adapter,modem,both cdroms,floppy drive,usb and serial cabling and tried to run and install like that.
Even copied the whole xp setup disk to a folder on the hard drive and ran setup from there.
Also ran memory tests.

The error reported ny xp and 2000 seems to point to hardware issues, typically memory, or video cards, according to my research on this error.
The Video and sound cards are on the mobo.
This is the error, if interested:
STOP: 0x0000007F (0x00000000, 0x00000000, 0x00000000, 0x00000000)
UNEXPECTED_KERNEL_MODE_TRAP Fault.
If this is the first time you have seen this error, try restarting.
Then it talks about hardware.
If I don't get this error, I get errors when setup tries to finish setting up windows and it cannot copy files that have been copied to the hard drive already.
Windows 98 will load, but the errors encountered on it, talk about missing files, or Cannot write to drive C.