Question about Dell Dimension 5150 (DIM515MIN) PC Desktop

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Dell Dimension 5150 PC

When I press power button, it just blinks with a orange light. I took the power supply out and checked with a electrician, he said it is fine. So I put it back, but the same thing happens. Also when I plug the power cord and turn the switch a green led light inside the mainboard is lit. What could be the problem? Can you give me a solution? Thanks

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  • mkstill Jan 15, 2009

    Mine is doing the same thing and what's funny is if I sit there and push and push and push and push the button (I know it sounds like a 2 year old) it eventually gets it. I was told to unplug all things that might be draining power but I really don't think that's it because once in a blue moon all that junk is plugged in and it starts...I swear it has a mind of its own...but I'll try a power supply and see what happens. I really really hope that's it, this computer isn't old enough to be giving me trouble!!!!!

  • Anonymous Feb 22, 2009

    same problem a real pain

  • richie1211 Feb 28, 2009

    I have a similar problem on my XPS 600.

    When I plug in the power cord all the fans spin like once or twice then I hear a click and the machine goes dead. I don't think the hard drives ever spin up.
    The power light flashes amber and diagnostic light 4 is lit up. An amber light is on, on the motherboard.
    I replaced the power supply and exactly the same thing happens. Will replace the motherboard battery next.

  • paul_powell Mar 03, 2009

    Same problem. After a brief power outage, only the blinking orange light comes up. This is the 3rd or 4th time it's happened. Before, it got better after about an hour, but not this time.



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They say prevention is better than a cure. However if it can't be cured try this.
In Power Settings set 'When I press power button' to 'Stand By.' When the power button is pressed the power lamp will flash constantly until pc is switched back on again but the power consumption in stand by is the same as when pc is shut down, about 0.03 amps! Problem solved? And fast start up to boot! (Oooh.. pun in tentional)

Posted on Mar 23, 2009


Thanks for all the advice, after de bending the usb contacts and cleaning the split rum and coke from the graphic card with nail varnish remover ( dont now how it found its way in ) working fine!!

Posted on Sep 16, 2008

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90% of the time, a flashing amber power LED on a Dell system indicates a failure of one of the circuits in the power supply (Usually the lower voltages 5v 3.3 v etc) The power supply is cheap ($40) and should always be replaced before the motherboard ($150) Unless you have a known good power supply for a similiar Dell that get the same results, replace the power supply.

I've seen many power supplies that will pass a bench test, but will still be far enough out of tolerance that it will not boot a Dell.

Posted on Sep 15, 2008

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This sounds like a motherboard fault, the green light shows power to the board but the orange can indicate that the board has failed

Posted on Sep 15, 2008

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