![]() Some PSU models may turn the computer on when a voltage comes, if their power button is set to “On”. Or you can just clean the contacts of the current one if there are signs of oxidation on them.Īnother hardware problem that may make your computer to turn on by itself without you even touching the power button is the power supply. If it no longer turns on by itself, you can be sure that the button is malfunctioning. Disconnect the power button and observe computer behavior in the “off” state. ![]() ![]() It is necessary to disconnect the button from the motherboard, most often it is connected by two contacts that go to the pins with the PWR (Power) marking on the board. ![]() It is quite easy to make sure that your computer turns on by itself due to a faulty power button. But the wear of the power button or the oxidation of its contacts may lead to a spontaneous PC start. Most often, the power button is located on the front panel of the system unit, and it is enough to press it to power the PC components and start the system boot. The most common problem which may make your PC to turn on by itself is the power button malfunction. Computer turns on by itself because of software problems - BIOS - WINDOWSĬomputer turns on by itself because of the hardware problems ![]() Computer turns on by itself because of the hardware problems 2. ![]()
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