why does my pc power up when u plug in the power plug. but when I hit the power button nothing happens
- Thread starter akhenaten
- Start date
Solution
Danimal1q2w3
Honorable
- Dec 4, 2013
- 356
- 1
- 10,860
There is a bios option to start up when power cord is plugged in. And it's possible that your button is broken / your wires leading from the motherboard to the power switch are damaged / disconnected
I did check the cables the are connected propperly. Didn't check the button but it worked fine before I changed boards. And when I tested the intel it just instantly powered up without a button on bridging it on the pins. Funny thing is the reset button responds normal. But It doesn't want to power up via a button. I'm out of options.
Chicano
Judicious
- Aug 29, 2011
- 5,071
- 29
- 35,490
What if you press the power button and hold it for 10 seconds?
If it turns off, the power switch may be configured wrong.. there's an option in the Control Panel / Power Options to configure what the power button does when you press it.. it can either go to sleep, go to standby, shut down or do nothing. This should not affect the computer when Windows isn't even loaded, but it just may affect it if you use sleep mode instead of shutting the computer down.
What you describe (powering up as you connect AC) can also happen if the PSU is damaged.
If it turns off, the power switch may be configured wrong.. there's an option in the Control Panel / Power Options to configure what the power button does when you press it.. it can either go to sleep, go to standby, shut down or do nothing. This should not affect the computer when Windows isn't even loaded, but it just may affect it if you use sleep mode instead of shutting the computer down.
What you describe (powering up as you connect AC) can also happen if the PSU is damaged.
THe power button or the wires might be damaged. If you can, test it with a multimeter for continuity when you press the switch, but for the mean time you can kludge it by moving the reset button headers to the power, and try to set the BIOS to reset on a momentary press, and a soft-off after a press and hold.
maddogfargo
Splendid
- Nov 28, 2006
- 3,344
- 8
- 22,965
Could have thye pin-out reversed on the Power Switch header. Some are polarity sensitive and do not work when reversed.
Powering on when AC power is connected could just be the default ACPI power state set in BIOS.
Powering on when AC power is connected could just be the default ACPI power state set in BIOS.
Raul_McCai
Distinguished
- Mar 21, 2014
- 67
- 1
- 18,545
you can get a cheap momentary switch from radio shack and it'll serve as a start button if you think yours is toast.
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