So I finally managed to re-install XP on one of the HDDs via the USB CD/ROM... can't access anything on that drive other than the new partition, but I wasn't too worried about most of that data. Happily, the other drive shows up, and so far all the stuff I wanted o keep looks OK (whew!).
But there's a problem... even with the performance bumped up in BIOS, it is ssssllloooowww. Really slow.The mobo looks OK: no blown o nearly-blown caps, and it's pretty clean right now. I don't recall ever tweaking voltages, FSB, etc. for the original install, but maybetha's the problem.
Anyone have any suggestions?