Chaintech VNF3 won't boot, then keyboard not found?

[cardiac]

Hello folks, got one that is stumping me.

Sister in law brought over a not complete system that someone at work was building her. Said it wouldn't boot. Stripped it down to 1 stick of PNY DDR 400 (512meg), and the PCI video card. Found it wouldn't boot for 5-10 minutes. If I left it on, eventually it would POST, then give me a "Keyboard not found" error, (And the usual "Press F1 to continue, etc) and sit there. Tried 2 or 3 known good keyboards to no avail. Every now and then, it won't POST at all, no matter how long I leave it on.

Any one have any ideas? I have built over 100 systems in the last 10 years, and this one has me. I've been to reading on Chaintech's site to no avail....

This is a supposed new board and AMD XP 2800 cpu. When it won't POST, everything still turns on (Fans, lights, etc)....

Thanks a bunch,

Bob

 

[Bob Anderson]

All I can suggest is to strip it down and start assembly all over again, making sure everything is assembled the way it is supposed to be, not how the first assembler did it.

That will eliminate assembly errors, and if it still won't work, then I'd say the MB or I/O back panel is defective, especially since it cannot detect known good keyboards.

-Bob