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  1.    05 May 2017 #11
    Join Date : Jul 2015
    Posts : 72
    Window 10 Home 64bit

    My vote is bad Power Supply.
    I lost a couple of the stock Dell power supplies.
    The cpu does a power supply test (when power on) & determines 'bad' and shuts things down to prevent damage.
      My ComputerSystem Spec
  2.    06 May 2017 #12
    Join Date : Aug 2015
    Posts : 75
    Windows 10
    Thread Starter

    I tried switching the ram and it still just did the same thing. I checked the PS output and the -5 volt light was not lit. I am concerned that since the power supply cycles the fans on and off, is it possible that the bad PS output may have messed up the motherboard.
      My ComputerSystem Spec
  3.    06 May 2017 #13
    Join Date : Aug 2015
    Posts : 504
    Windows 10 Pro x64 1607

    Quote Originally Posted by lenberman View Post
    I tried switching the ram and it still just did the same thing. I checked the PS output and the -5 volt light was not lit. I am concerned that since the power supply cycles the fans on and off, is it possible that the bad PS output may have messed up the motherboard.
    The only way to know is to install a different power supply into the system.
      My ComputerSystem Spec
  4.    06 May 2017 #14
    Join Date : Dec 2015
    Posts : 5,974
    Windows10

    Try booting from a usb flash drive or dvd to eliminate a failed hard drive (check connections first). Unlikely, but worth testing just in case.
      My ComputerSystem Spec
  5.    06 May 2017 #15
    Join Date : Aug 2015
    Posts : 75
    Windows 10
    Thread Starter

    I tried that first.
      My ComputerSystem Spec
  6.    08 May 2017 #16
    Join Date : Aug 2015
    Posts : 75
    Windows 10
    Thread Starter

    According to what I've read, the -5volt circuit is not normally used so I suspect there may be another issue. How do I troubleshoot the motherboard? The Dell power supply has a built in breaker which trips immediately. If I hold the reset button the power supply will run for the durration of the press, but the computer will not even begin to boot.
      My ComputerSystem Spec
  7.    10 May 2017 #17
    Join Date : Jun 2015
    N.Y.
    Posts : 3,069
    Windows 10 Pro 64 bit

    Quote Originally Posted by lenberman View Post
    According to what I've read, the -5volt circuit is not normally used so I suspect there may be another issue. How do I troubleshoot the motherboard? The Dell power supply has a built in breaker which trips immediately. If I hold the reset button the power supply will run for the durration of the press, but the computer will not even begin to boot.
    https://www.youtube.com/watch?v=udGOe7LQJEI
      My ComputerSystem Spec

 
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