Question about Dell OptiPlex GX620 PC Desktop

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Optiplex gx620 USFF. no power to the machine

I have 2 optiplex gx620 USFF's. one works fine the other started to work ok, i was installing windows and then the power just dropped from it. I tried to reboot and there was no power running to the machine, I switched the power packs over and nothing. when i first plug it in, the power come on for a few seconds (mobo light solid amber) and then the power cuts out. At first I did get a low voltage warning and hit F1 to proceed and then half way through install the power dropped. Can anyone assist me with this? and yes I have tested both power packs and cmos batteries with the working machine and they are all ok. Its driving me batty and I cant figure it out! any information would be appreciated

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  • Dell Master
  • 3,051 Answers

HELLO THERE:
THE FIRST THING YOU WILL NEED TO DO IS TO DOUBLE CHECK ALL THE CABLES AND POWER CORDS ARE FIRMLY INSTALLED NORMALLY REMOVE AND REINSTALL THE CORDS AND CABLES TO MAKE SURE THEY DID NOT COME LOOSE IF IT WONT BOOT THAN TRY TO REMOVE THE CD ROM AND THE HARDDRIVE CORDS AND CABLES FROM THE DEVICES AND TRY TO BOOT IF THE MACHINE IS NOW STARTING INSTALL THE CABLE AND CORDS 1 AT A TIME FOR EACH DEVICE AND BOOT UP THE MACHINE EACH TIME THIS WILL HELP YOU FIND OUT WHERE YOUR PROBLEM IS OK.
BEST REGARDS MIKE

Posted on Aug 02, 2009

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Posted on Jan 02, 2017

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The OptiPlex 7010 USFF has the following external connections:
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