This problem only started when I upgraded my mobo/cpu (gigabyte K8NXP-9/64 3500+) that it would turn on ok, but then if I turned it off and tried turning it on again, nothing would happen and then after 5 minutes just turn on by itself.
Recently however, it will only turn on by some stroke of luck. When it does turn on, it seems to be perfectly happy. All the voltages are nominal and there is no instability. My first thought was that it was my power supply but I used my current one (500W codegen) with my old mobo and it worked fine..
Has anyone seen this problem before or know how to fix it? Is it just a dud mobo?