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Why won't my gateway MD78 power on?

I have tried power reset and that doesn't work.

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  • 233 Answers

Here below are possible causes and troubleshooting steps of laptop that can't power on, hope it may help:
Possible causes:

1. AC adapter failure.
2. Power jack failure.
3. Motherboard failure.

Possible troubleshooting steps and repair solutions:
1. Test the AC adapter with a digital multimeter. It's possible that you have a failed AC adapter. If you don't have a multimeter, test your laptop with another known good AC adapter.

2.It's possible that power jack (socket where you plug the AC adapter) is broken. Remove the motherboard and take a closer look at the power jack. In some cases you can fix the jack by resoldering it on the motherboard. In other cases you have to replace the jack with a new one. Using a multimeter, test if the power goes to the motherboard through the jack.

3. If replacing the AC power adapter and jack on the motherboard doesn't help, most likely you have a bad motherboard. Replace the motherboard.

Replacement Gateway MD78 AC Adapter 65Watt 19V 3.42A Option

Replacement Gateway MD78 MD7800 AC Adapter 90Watt 19V 4.74A

Posted on Nov 30, 2012

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SOURCE: my ibm think pad a22m

Chances are that if the fan isn't working then its over heating and shutting down. Check to make sure there is no dust or pet hair clogging it up. If there is then try and clean it out with compressed air. If there is no obstruction then the fan may have died on you. Only thing to do is look into getting a new fan or take it to a repair shop.


Best of luck

Posted on May 25, 2011

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