I found another halfway decent motherboard in my $35 motherlode (Found here.) It worked just fine last night when I tested it, but when I came back today, I tried to boot it up again and it starts glitching out on me. Whenever I turn it on, it runs for a few seconds, the CMOS does the memcheck, and before anything else happens, it shuts off on me! I unplugged everything, except for the motherboard power and the cord for the on switch, and reset the CMOS, but nothings working! Anyone have any ideas?



I don't know what model the motherboard is, but it has 1 AGP port, 2 PCI ports, 1 FDD connector, 2 EIDE connectors, AMD processor, and (I think) PCNet integrated ethernet.

EDIT: Does anyone know where I can get good quality, low wattage power supplies for cheap in bulk?

Check the copper stand offs and make sure there in the correct spaces. Also make sure there are no globs of solder touching any of the standoffs. Also check around the IO shield and make sure nothing is grounding out.

Nope, nothing. All of the solder is perfectly where it should be and the IO shield is fine. I even took the heatsink off to take a look at the processor, and the integrated (grr!) 1999 AMD Duron processor is in perfect condition. (I'd give pictures, but my camera decided that it was out of juice right when I was about to take a picture. I'll upload one later.)

EDIT: Here's those pictures.

Make sure there is no thermal paste between the copper connections on the processor. Make sure its only on the heat spreader.

Compare the placement of your motherboard's standoffs with the motherboard documentation; omitting a standoff can cause a number of odd problems. Be sure to use the same number of standoffs as your motherboard has holes. Make sure they are all screwed in, but not too tight.

i have attached your manual for the K7SEM rev 3.0C

and here's the link for the bios, and drivers...

Hope it helps

Looking at that picture I see a buildup of dust on the heat sink for the CPU, this can cause thermal problems which can shut down the computer.

was browsing the manual, connect the case fan and the processor fan, see if that helps....