Windows 10: Pc receives power but does not boot. Solved

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  1.    30 Nov 2016 #1

    Pc receives power but does not boot.


    On mobile so I'll keep it short as possible without leaving details out. Last night I left my pc on sleep mode. When I got our of work today I forgot it was on sleep mode and pressed the power button. I then noticed everything turn off and remembered it had been in sleep mode. After pressing the power button, there is no boot. My mic, headset, and mouse light up but there is no cpu fan spin, no beep, and definitely no display. The computer is dead silent. I've tried removing one piece of hardware at a time and had no luck.
      My ComputerSystem Spec


  2. Posts : 3,341
    EL Capitan
       30 Nov 2016 #2

    Pull the power and CMOS battery. Possibly a bad power supply. Mom & Pop computer shops have testers to check the motherboard, power supply, etc..
      My ComputerSystem Spec


  3. Posts : 3,084
    Win10 Home and Pro, Win10 Insider Preview, Win7 Home, Linux Mint
       30 Nov 2016 #3

    After pulling out the power cord press the On|Off button or wait 20 seconds to assure all residual power has drained off the motherboard. Then locate the large plug on the board, either 20 or 24 conductors from the power supply and remove it. It has a clip that has to be squeezed while pulling the plug loose. Wait a few seconds and put everything back and try to boot.
      My ComputerSystem Spec

  4.    30 Nov 2016 #4

    Berton said: View Post
    After pulling out the power cord press the On|Off button or wait 20 seconds to assure all residual power has drained off the motherboard. Then locate the large plug on the board, either 20 or 24 conductors from the power supply and remove it. It has a clip that has to be squeezed while pulling the plug loose. Wait a few seconds and put everything back and try to boot.
    Done so and nothing. Peripherals still turn on but no boot.
      My ComputerSystem Spec

  5.    30 Nov 2016 #5

    bro67 said: View Post
    Pull the power and CMOS battery. Possibly a bad power supply. Mom & Pop computer shops have testers to check the motherboard, power supply, etc..
    Will look into testing the board and psu at a shop. It'll have to wait til next week though.
      My ComputerSystem Spec

  6.    30 Nov 2016 #6

    Berton said: View Post
    After pulling out the power cord press the On|Off button or wait 20 seconds to assure all residual power has drained off the motherboard. Then locate the large plug on the board, either 20 or 24 conductors from the power supply and remove it. It has a clip that has to be squeezed while pulling the plug loose. Wait a few seconds and put everything back and try to boot.
    I'm not aware of anything that would be accomplished by disconnecting the ATX power connector (20 or 24 pins) from the motherboard.

    Resetting the RTC (real time clock) to restore the default BIOS settings seems likelier to do something useful. As the OP hasn't given us any system details, removing the CMOS battery would be one way of doing it. There ought to be a jumper, or a pushbutton on some boards, to do that without removing the battery.

    I'm a little confused, though. When I have a PC in actual sleep mode (no fans, power indicator light blinking), pressing the power button wakes the PC up.
      My ComputerSystem Spec

  7.    30 Nov 2016 #7

    bobkn said: View Post
    I'm not aware of anything that would be accomplished by disconnecting the ATX power connector (20 or 24 pins) from the motherboard.

    Resetting the RTC (real time clock) to restore the default BIOS settings seems likelier to do something useful. As the OP hasn't given us any system details, removing the CMOS battery would be one way of doing it. There ought to be a jumper, or a pushbutton on some boards, to do that without removing the battery.

    I'm a little confused, though. When I have a PC in actual sleep mode (no fans, power indicator light blinking), pressing the power button wakes the PC up.
    Yeah, sorry. Working on details. It's just a little difficult to get proper formatting on mobile.

    Cpu - i5-6500
    Mobo - MSI-H81M
    Psu - corsair hx750
    Gpu - sapphire r9 290 tri-x
    Ram - 2x 8GB gskill nt ddr4

    Pressing the power button may wake a pc in sleep mode. I usually always did with either my keyboard or mouse. If the pc had already shut down before I got home would make more sense than the pc powering down from sleep mode I guess.
      My ComputerSystem Spec

  8.    30 Nov 2016 #8

    Just a thought.......hold the power button on the case down for about 5 seconds..........then after a couple seconds try to turn it back on with the power button.......
      My ComputerSystem Spec

  9.    30 Nov 2016 #9

    kipper said: View Post
    Just a thought.......hold the power button on the case down for about 5 seconds..........then after a couple seconds try to turn it back on with the power button.......
    No go. Holding/pressing the power button down does not stop power. I'll try to word this better

    Press power button and nothing happens but power on mic and headset. Once "on" passing or holding the power button doesn't turn them off. The lights stay on until I flip the switch on the psu.
      My ComputerSystem Spec


  10. Posts : 3,341
    EL Capitan
       30 Nov 2016 #10

    Cedsays said: View Post
    No go. Holding/pressing the power button down does not stop power. I'll try to word this better
    Press power button and nothing happens but power on mic and headset. Once "on" passing or holding the power button doesn't turn them off. The lights stay on until I flip the switch on the psu.
    Stop messing with it until you find out what is wrong. The testers that plug into the cables on the Power Supply cost more than a new power supply. Only problem is that it could be a bad switch on the case, bad motherboard, bad hardware device.

    Call around and see if there are any mom & pop shops that can take a look at it and go back through checking everything. Standard procedure in this case is to unplug the computer, pull all plugs from drives, etc, pull the CMOS battery and then pull all cards and RAM. Then get a can of air, blow out all hardware slots, put back in RAM one module to see if you can get to the BIOS screen. If your keyboard is attached. You should get a series of blinking lights for the POST. Then it is getting the information to decipher the POST error.
      My ComputerSystem Spec


 
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