Question about Dell Dimension 5100 (D51L1) PC Desktop

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Dell 5100 Dimension - No Power

Daughter blew a breaker yesterday with her hair dryer. PC is on the same circuit. thru a surge protector. this morning. PC won't power on. No light on PC front button. Changed the PC power cord. Tried a known working outlet. No Fan, no activity onside case execpt single green led on motherboard near power supply. Fan in PS not running. Measured 115 volts at end of cord where it mates to case. How can I tell if the Power Supply is shot? Are there any fuses or things to reset inside the Power Supply? The Dell # on the PS is W8185.

Thanks in advance for any guidence.

Eddie

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  • EdfromCT Nov 19, 2007

    Spent an hour on the phone with Dell and they are sending out a tech with a new power supply and motherboard ( just in case ).

    Thanks for your help.

    Eddie

  • rick416 Jan 23, 2008

    EDfromCT's, what fixed your problem? I currently have the same issue and am about to order a PSU

  • Rob Little Apr 24, 2008

    EdfromCT has described exactly the problem I'm having with a friend's Dell Deminsion. I vary from the problem only by virtue of having already tried putting in a known good power supply and it still won't power on. The power supply fan is not running and all I get is the little green light on the motherboard. I don't see any burn marks or anything other signs of electrical damage on the motherboard. My friend had his machine plugged straight into the wall without surge protection and he noticed it not working after a lightning storm.



    My question is:

    Is there some sort of motherboard reset procedure or is the motherboard shot? Or is there a fuse on the motherboard that may need replacing?

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There are fuses inside psu`s some are solderd and some pop out it i would suggest that u throw the psu away and buy new chances are that it will only cause continues and may even result in 
complete mobo failure problems heres a link to a cheap psu   http://www.microdirect.co.uk/(3649)400W-P4AMD-quiet-PSU-with-PFC-20-pin-24-pin.aspx or a more upmarket more powerfull http://www.microdirect.co.uk/(11879)ThermalTake-TR2-500W-Black-Silent-ATX-12V.aspx the choice is yours.

Posted on Nov 18, 2007

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