Question about Dell OptiPlex SX270 PC Desktop

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No beeep, no start up power not image - Dell OptiPlex SX270 PC Desktop

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  • basgitaar666 Sep 30, 2008

    My optiplex sx270 won't startup anymore. The amber light on the motherboard is burning but there's nothing happening. I even won't get any signals on the little lights on the back of the pc.

    The pc worked very well until now. No blown caps on the MB.

  • biscuitron Oct 14, 2008

    same problem exactly



  • skankyvoodoo Nov 10, 2008

    I have EXACTLY the same problem. I tried heating the computer with and without the top casing on, with a blowdryer ... but still nothing. The fans are getting power because they don't spin freely when I spin them by hand, and the computer is giving off heat. I'm beginning to wonder if this chicken **** power button, or the chicken **** case contact switch is faulty. I have two of these machines with the exact same problems btw.

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I have the same issue - identical.

My sx270 gets relatively little use and spends a lot of time powered off. The location is also an indoor, but unheated room. Temperatures are therefore low (but not freezing) in winter. Being by the coast there is also a certain level dampness in the air.

This fix is clearly lo-tech and short-term. But it has worked for me more than once and may be enough to help some of you out in an emergency.

I have found that by gently warming the PC first (no kidding!) with a hairdryer set to low seems to do the trick.

  • Switch the power supply off at the wall outlet.
  • With a hairdryer set to low, gently blow warm air all around the casing and down through the top vent for two minutes or so.
  • Reconnect the power supply (you should hear the PC fan kick in briefly) and switch on.
Once started and "warmed-up" the PC is fine to shutdown & reboot etc and seems to behave normally. Only if left off for a few days does the problem return. I suspect dry joints on the motherboard or an issue with the capacitors as reported elsewhere but have not yet taken a closer look at the motherboard.

Hope this helps.

Posted on Nov 09, 2008

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