I picked up and moved my Dell optiplex gx1p, yesterday, and now for some unknown reason when I put the power cable back into the computer, it automatically powers on. I don't get a screen, I can hear my hard drive, but when I try to press the power button for a hard shut down, it is taking a long time to actually power down, does anyone have any suggestions of what could have happened when I moved the CPU? I opened the caes and checked the hard drive it was plugged in properly. If I put the power cord back in it automatically starts up again.
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Dell Powers up automatically
- Thread starter milkman
- Start date
ski
Technical User
- Oct 11, 2000
- 2,467
With the power cable removed, open the case, remove the power button's wires from the MB, and reconnect the power cable:
(1)If the computer does not start, then momentarily jumper the MB terminals where the power button's wires were connected with a screwdriver.
If the computer starts, then check the power button's wires for a short(bare wires, etc.).
If the wires look ok, then replace the entire power button assembly.
(2)If the computer starts, then there may be a problem with the MB.
(1)If the computer does not start, then momentarily jumper the MB terminals where the power button's wires were connected with a screwdriver.
If the computer starts, then check the power button's wires for a short(bare wires, etc.).
If the wires look ok, then replace the entire power button assembly.
(2)If the computer starts, then there may be a problem with the MB.
- Thread starter
- #3
ski
Technical User
- Oct 11, 2000
- 2,467
I suppose anything's possible, but normally a bad video card will not cause the computer to start when the power cord is connected.
Actually, I forgot about your no display situation when it starts.
This should not be caused by a bad power button assembly.
So troubleshooting it may be a waste of time.
In an ATX style system, like yours, with the power cord connected and the power supply switch turned on, the MB has 5 volts of power being constantly supplied to it, even when the system is shut down. This 5 V is used to start the system thru the power button.
And connecting the power cord, even with the power supply switch turned on, will not turn the system on when everything is working properly(Turning the system on and off with the power supply switch was how things were done on the old AT style systems, as well as other old styles).
However, if there's a short either in the power button or in it's wires, then connecting the power cord with the power switch turned on will start the system. But there should also be a display, unless there's another problem.
And the 'other problem' seems to be the situation that your system is experiencing.
A bad MB will cause the system to turn on by connecting the power cord with the power switch turned on, and can also result in no display. This is where I would suggest that you start troubleeshooting.
Actually, I forgot about your no display situation when it starts.
This should not be caused by a bad power button assembly.
So troubleshooting it may be a waste of time.
In an ATX style system, like yours, with the power cord connected and the power supply switch turned on, the MB has 5 volts of power being constantly supplied to it, even when the system is shut down. This 5 V is used to start the system thru the power button.
And connecting the power cord, even with the power supply switch turned on, will not turn the system on when everything is working properly(Turning the system on and off with the power supply switch was how things were done on the old AT style systems, as well as other old styles).
However, if there's a short either in the power button or in it's wires, then connecting the power cord with the power switch turned on will start the system. But there should also be a display, unless there's another problem.
And the 'other problem' seems to be the situation that your system is experiencing.
A bad MB will cause the system to turn on by connecting the power cord with the power switch turned on, and can also result in no display. This is where I would suggest that you start troubleeshooting.
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