hmm. I had the same exact problem with my old AMD XP set up........But it worked fine, but then it did that one day after it crashed.........it never came back to life......even till this day. I cant really tell you what the problem is, i even replaced the PSU thinking that was the problem, it wasnt, replaced the ram, that wasnt the problem, replaced hdd and video card, not the problem. So that just left me with the CPU and mobo........one of them pry got well damaged. After all, i ran it OCed 24/7.
I just read some reviews about that board on newegg, looks like it has alot of complaints, maybe your mobo. What kind of power supply do you have?