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Power supply LED blinks when connected to motherboard but it stays lit and fan spins with paperclip test

  • Power Supplies
  • Computers
  • Green
  • Motherboards
  • Components
Last response: in Components
May 10, 2014 2:50:01 PM

My aunt brought me her computer for help because she couldn't turn it on.

I found that when I plugged the computer into the outlet, the Bestec 300 watt PSU's LED was blinking green and made a ticking noise each time it lit. Pressing the power button did nothing.

So next, I pulled the PSU out of the PC and tried the paper clip test plugging it into the green wire and a black one next to it. The green light lit and stayed lit, and the fan worked as well.

Can anyone help me diagnose the issue? Originally I was going to buy a new 400 watt ATX PSU but now I'm not sure what to do. Help please!

The PC is a Compaq Presario SR1222NX.

More about : power supply led blinks connected motherboard stays lit fan spins paperclip test

Best solution

a c 2488 ) Power supply
a c 1530 V Motherboard
May 10, 2014 2:51:50 PM

Sounds like the PSU is dying.
Related resources
May 15, 2014 5:20:48 PM

I replaced the PSU and it works fine now. Thanks
a c 2488 ) Power supply
a c 1530 V Motherboard
May 15, 2014 6:18:46 PM

Glad to hear your very welcome.