[QUOTE=coolcolors;2266345]I notice recently that my old pc when I startup from a cold shutdown that it seems to do nothing no beeps but I do hear click from the HDD I think. But if I take the case apart and check the connections power and cable and reseat the cards it seems to startup? Could this be my battery CMOS going dead? It’s a old system since 2001. It never beeps so I don’t know the code error but the LCD monitor just says no signal then my sound card start to act funny then came back alive again? My hunch is the motherboard is dying but then again it will start up again too so at a lost here. I will check the battery and maybe replace it just to see if that helps it from a cold start. Once it running and going it’s ok but if you let it shutdown and restart the next day you get power lights but nothing.[/QUOTE]
An LCD multi-tester is handy to check the CMOS battery or any other battery for that matter.
In this case, I would swap in a different power supply and see if that makes a difference. With any electric motor (drives, fans, etc.) amp draw is greatest at start-up and this could be too much for a failing power supply.