nf4 ultra-d diagnostic

[neouser99]

I'm having difficulty figuring out what is going on with a computer I picked up the other day.

Antec 450W PSU
DFI NF4 Ultra-D
AMD64 X2 3800+
1 GIG Kingston ValueRam 2x512
ATI X1300
Wester Digital WD2500KS 250gig

Misc:
USB Reader
2x CD Drives
Linksys Wireless PCI
Happauge PVR500

With everything under the misc category unplugged, I can't boot into Knoppix text mode, and barely into Windows MCE. Sometimes the picture shows articles and becomes totally unresponsive, other times it just flat out reboots. Sometimes windows says it recovered from a serious error, other times it doesn't.

I know for a fact it isn't the memory, I have RMAed it already and both sets of sticks passed memtest. I know it isn't the video card as I have dropped in a known working card and it still freezes.

I have also tried everything else from this thread (http://forum.pcmech.com/showthread.php?t=173063). Reset the CMOS, tried all that.

I guess that I am just fishing for some other ideas of what it could be. Right now I'm convinced that it is probably the motherboard, but that is an awful difficult one to tell. I have another computer with similar specs, so if it is worth it to swap processors, psu, etc to find out, just let me know which way will be the least painful to go down with possible the fastest results.

Thank you,
-neo

[glc]

DFI's can be very fussy - have you tried clearing cmos? Maybe a bios update will clear it up?

[neouser99]

i cleared the cmos. as for the bios update, i don't have a floppy drive on hand, could get one, but was going to explore other possible options first.

-neo