When the computer is turned on the computer turns off after about 5 seconds. when the cable coming out of the psu that has the two yellow and 2 black wires coming out of it, is not connected it works fine. but once that connector is placed back in the mother board it will not work.
You can perform these steps even though the screen is blank.Hope it helps!
- Turn off the computer, and then remove the power cord.
- With the power cord disconnected, press and hold the power button for five seconds.
- Reconnect the power cord, and then turn on the computer.
- Repeatedly press the F10 key about once every second for five seconds after turning the computer on.
- Wait five seconds.
- Press the F5 key. This restores the default settings of the BIOS.
- Press the Enter key. This accepts the changes.
- Press the F10 key. This opens the Save and Exit window.
- Press the Enter key. This saves the changes, exits the BIOS, and then the computer restarts.
- After the computer restarts, the screen should display the HP logo.
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What does that cable go to?
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