Windows 10: Power light on but no boot

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  1.    21 Feb 2016 #11

    Ticked said: View Post
    I located instructions for resetting CMOS (Clearing Cmos Passwords - Dell Inspiron 660 Owner's Manual [Page 104]) and have done the reset. No change in the symptoms: power light comes one, fans come on, nothing else happens.
    ah well in that case you need to make a bootable usb or dvd , if that fails it could be psu , mobo , hard drive failiure , ram issues allsorts which we can troubleshoot , sounds though like its prolly just a windoiws issue. (wpul;dnt hurt to make sure everything is plugged into your mobo properly too especially the 24 pin plug on the left side
      My ComputerSystem Spec

  2.    21 Feb 2016 #12

    I can see that the NUM Lock and Caps Lock LEDs on the keyboard toggle on and off. I don't think it's a power button because the fans turn on when I power on. I've cleared the CMOS and there is no change in symptoms. I'm trying to work my way through DELL's No POST/No Power/No Video article, but I'm not clear what the diagnostic LEDs are that they mention...
      My ComputerSystem Spec

  3.    21 Feb 2016 #13

    If the PSU has failed you can still receive power - it's just not enough to boot up

    Perhaps get on of these:-

    Leegoal 20 / 24-pin Power Supply Tester for ATX / SATA / HDD, Black: Amazon.co.uk: Computers Accessories

    It helped me determine the faulty PSU when exactly the same thing happened to me. I just bought a new PSU and I was back in action. The pic of your computer's PSU connections look standard but Dell can be a right git as they sometimes use propitiatory connections.
      My ComputerSystem Spec

  4.    21 Feb 2016 #14

    Is there a way to test the power supply without ordering and awaiting delivery of a commercial tester? Given the sequence of events that led up to this failure, it just doesn't read power supply.
      My ComputerSystem Spec

  5.    21 Feb 2016 #15

    Archie123 said: View Post
    ah well in that case you need to make a bootable usb or dvd , if that fails it could be psu , mobo , hard drive failiure , ram issues allsorts which we can troubleshoot , sounds though like its prolly just a windoiws issue. (wpul;dnt hurt to make sure everything is plugged into your mobo properly too especially the 24 pin plug on the left side
    Hi Archie123

    At this stage, I am not sure it's a windows issue as the hard drive/os is out of the loop and the OP is not getting access to the bios. Let's hope I am wrong.
      My ComputerSystem Spec

  6.    21 Feb 2016 #16

    Ticked said: View Post
    Is there a way to test the power supply without ordering and awaiting delivery of a commercial tester? Given the sequence of events that led up to this failure, it just doesn't read power supply.
    I don't know - a tester is the best way....maybe your local computer/technical store will have one. A faulty PSU or other hardware like RAM could have caused the issues in windows which in turn led you down the safe mode path and the problems you are facing.
      My ComputerSystem Spec

  7.    21 Feb 2016 #17

    I removed all peripherals except keyboard, mouse, and monitor, and drained power and restarted it -- this time it restarted in Safe Mode.
      My ComputerSystem Spec

  8.    21 Feb 2016 #18

    That's great!!! glad to hear you are back on track albeit in safe mode. Can you access the full OS?
      My ComputerSystem Spec

  9.    21 Feb 2016 #19

    It keeps rebooting into Safe Mode. How to I exit Safe?
      My ComputerSystem Spec

  10.    21 Feb 2016 #20

    uuummm! Can you press F8 to see OS loading options?
      My ComputerSystem Spec


 
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