I have a shuttle an35n ultra w/ athlon 3000/400.
Two days ago after about 1 hour on, comp dies. On reboot everything checks out ok, but when it enters os(xp home) os flashes on momentarely, then the comp powers down. I have eliminated cpu, hd, video, sound, memory, hd, floppy and ps. I reset bios and loaded optimal settings and everything checks out ok, but same thing happens.How can I check to see if it’s the mobo?