I have a hard time finding blame in windows for this one, even though I want to.

My PC randomly locks up. Yet after a few (20-30) seconds? All seems fine until the next time. There is no reason for it, meaning I could be browsing simply or on youtube or just in a simple text file.

Here are the hardware specs (no snickers, it is a backup machine. Plus remember when it was a killer one?)

MOBO ep-8rda3i (think epox went out in the mid 2000's)
2 GB (2x1) corsair cmc2 400 ram in single channel mode (matched set)
MX440 8x agp
athlon +xp3200 OC'd to 3 Ghz (very well cooled)



I thought at first maybe heat but I think 38c is plenty low for the cpu. So I went to stock speeds and still had the same issue.

Any input would be helpful.