I have this older P4 that I set up a couple/few months ago just waiting for a cabinet. The other day, I decided to use it for a test of s-video, and the drive wouldn't boot. After resetting and finagling the bios, it saw the drive, but even in safe mode would start to boot the desktop and then would simply reset.
I did a repair, about four times, in-between each time seeing if it would boot. It would alternate between not booting (freezing at the F8 screen, counter a 0); and getting to the desktop, a little message balloon lower-right would pop up saying 'found primary IDE', and then it would reset.
I guess I should just slave it in another computer, copy the files, and (best) set up a new drive (because If I ghosted it, wouldn't it have the same issues?), but thought I'd ask first. ?