I built it quite a few years ago, agp etc. It has what was at one time considered to be a nice psu (ocz 450w modstream). It's dying now after about 30 minutes of actvity. It'll turn back on after a minute or so. I took it apart to get the dust out but that didn't help. I haven't reseated the cpu, is that worth doing? Anyway, open to suggestions. Thanks.