Question
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Topic
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PC Powers On then Off from Mains Switch Before Pressing Power On/Off Button
LockedI have recently built a new PC and everything works fine except for this one issue. When I switch the plug on at the mains – before I get chance to switch the PC on at the On/Off button on the case/chassis, it has already started to power up. The screen stays blank (black)- so doesn’t go through the proper POST because it stays on for a few seconds and then powers off completely. Then when you actually turn it on (for the first time by yourself) at the On/Off Button on the case, it powers up exactly as it should – no problems.
I don’t believe the CPU is overheating or the fan speed is not fast enough – as when it powers up properly my Asus AI Booster tells me the temperature is fine.
I don’t know whether it is likely to be a premature OK_signal on the PSU or whether it is more likely to be a standby/hibernation issue with the settings.
Has anyone else had this problem or shed some light on what might be wrong?
Thanx.