Question about Dell OptiPlex GX520 PC Desktop

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Power Had a thermal event, changed out the heatsink and fan. When attempting to power up, the light goes amber for a split second, then goes off. ABCD lights are off. Motherboard light amber. Same problem changed mainboard changed control panel changed power supply the only thing left is the case. Been at this for 6 months with little success. Will never buy another dell machine .

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  • motormike Dec 10, 2007


  • motormike Dec 10, 2007

    could it be a lazy (faulty) fan at startup

  • motormike Dec 14, 2007

    No the motherboard is a new one and inspects fine. Also replaced control panel ( switch ) and power supply.

    It starts after multiple presses of the switch sometimes up to thirty presses.

    Otherwise no glory as the switch turns amber whilst being pressed then instantly turns itself off'.

    This problem has not been resolved with replacing parts it is still as it was when purchased.

    Im at a loss

    Please help

    If any more info required please post requirements.

  • motormike Jan 17, 2008

    This problem looks to be unsolved everywhere i look.

    If anyone has any idea or experience with Dell machines then maybe they may have encountered something similar before.

    Any help in solving this issue will be greatly appeciated.

    PS Machine out of warranty so no help from Dell



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Check to see if something on the motherboard is fried, usually the capacitors are the first to go. look for swollen capacitors (the X on the top of the capacitor is not flat, usually leaking something or just swollen). If so, have the motherboard changed, if it's still under warranty, DELL replaces it for you.

Posted on Dec 10, 2007


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