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[Emachine C2684] Systems appears to be getting power, but won't boot.

Greetings all. I'm in the process of trouble-shooting a friend's emachine and looking for a bit of assistance diagnosing the root problem.

Symptoms: As soon as I connect the power cord to the PSU, the CPU fan immediately starts running and the green power LED around the switch lights up. However, no matter how often I press the power switch or how long I hold it in, there's absolutely no change. The only way to shut off the machine is to unplug the power cord.

I've gone ahead and removed everything from the system except for the CPU and PSU and tested powering up piece by piece. Each time has the same result as mentioned above.

My research on the net so far suggests it's either a motherboard or PSU related issue, but perhaps I'm overlooking something?

Any and all assistance is sincerely and truly appreciated.


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Track down the motherboard manual, the motherboards of branded machines are usually made for them by PCChips or Foxconn or someone similar.
In the manual identify wich connectors on the motherbaord is the front power switch. Disconnect the front power switch and plug it all abck in again to see what happens with the power switch disconnected.
If you feel brave enough you can momentarily short the motherboard powerswitch connectors and the machine will start.
the front power switch is a momentary switch so only short the motherboard pins long enough for the machine to start.

Posted on Jul 30, 2008

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Posted on Jan 02, 2017

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