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automatic start up

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by tcrelectrical

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can any one tell me how to stop my computer from starting up automatically.i shut the computer down, then come back a couple of hours later and the computer is on again. the hibernation feature is disabled. i am running windows xp pro

5 replies

by thechas

If the Wake-On events are disabled, here are a few more hints:

Check for a jumper on the motherboard that enables a Wake-On-Keyboard feature.
This feature is often a jumper rather than a BIOS setting.
When enabled, simply touching any key on the keyboard will start the PC.

There have been a few instances of bad power switches causing random startups.
Unplug the power switch from the motherboard and see if the PC stays off.

Since an ATX system is ALWAYS a little bit on (the power supply constantly supplies 5 volts to part of the motherboard) a power line surge could trigger the power on circuit.
In an area with poor AC power, a surge strip may not be enough. You may need either an AC line filter, or a power conditioner.

Chas

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