Question about Dell OptiPlex GX520 PC Desktop

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Dell optiplex won't Boot-up.. Orange light on motherboard

My Dell optiplex gx520 is not booting up everytime i press power button. Tha CPU and Pow Supply fan is not working whenever i press power button. when i plug the power cord to the Power Supply there is an orange light indicator on the motherboard. What des this mean?

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  • bacondon Aug 08, 2008

    My Dell optiplex gx520 is not booting up everytime i press power button. Tha CPU and Pow Supply fan is not working whenever i press power button. when i plug the power cord to the Power Supply there is an orange light indicator on the motherboard. What des this mean?

  • godlistenser Aug 14, 2008

    I'm the It personnel with the same problem,before this my pc had power supply problem then i fixed the new one but once the power is connected to the pc on the motherboard it lights orange and on the switch it just blick red therefore no further process.I have tried to connect the same power supply to another machine and it starts properly so can i have ur assistance plse?


  • Anonymous Oct 05, 2008

    I have a dell optiplex g260 with the same problem (almost). It does power up but it's light on the motherboard (usually green) has turned yellow.
    The boot screen does'nt show. The screen, graphics cards, cables etc. all work but still nothing.

  • Anonymous Nov 19, 2008

    It's the same issue. I will try to re-sit the memory!

  • Anonymous Mar 25, 2014

    won't boot up

  • Anonymous Mar 29, 2014

    system will not boot

  • Anonymous Apr 01, 2014

    but our IT removes some parts like RAM and what else they remove.....and i plan to put ghrapics card on it if it can be fix....but now only i need to know wht to check why it automatically start and wont off,and why it wont give any display on my monitor.



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Orange light indicator on the mother, replace power supply, same problem

Posted on Sep 30, 2010

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Its going to rather your power supply or your motherboard has died, id try a different power supply first

Posted on Aug 11, 2008


Have the same problem. Tried swapping the power supply with a known good one. Didn't help. So the orange light definitely doesn't just indicate a bad PSU. I'm gonna say this MB is a gone-r...

Posted on Aug 13, 2008

I had the same problem, try reseating the memory, it worked for me, I am running a memory test now.

Posted on Sep 19, 2008

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