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Flickering green light on power supply

\015 I have a HP Pavilion a824n It has an issue like the a420n green light flickering on power supply and nothing coming on.\015

Answers :

Power units not working,, the light means power problem you will need to replace the power supplie
The same problem with my HP. The Power Supply is bad I tested it with another power supply and it works fine. The power supply is the part with the power plug in the back. Where the green light flickers. It takes 4 screws to unscrew. Do it with the power off/disconnected. The Unplug all your devices and the Mother board plug(s) maybe 2 connections on motherboard. Also if you have black SATA connections you need to buy the right ATX power supply with serial ata for the hard drive. You can also buy a tester from newegg for around 12 dollars.
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