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HELP EMACHINE MOTHERBOARD

\015 I have an emachine with a celeron 2.5GZ CPU socket 478 and I would like to know if anyone knows how to troubleshoot it. I had to replace the power supply because it was dead but the motherboard doesn't do anything. No beeps and no output. HELP PLEASE !!\015

Answers :

Are you sure you plugged the 12v plug back into the motherboard from the PSU? Unhook and replug it, making sure it is in snug and even. Its also possible that when the PSU was dying out the voltage levels changing might have fried a circuit. Hope not though.
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