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Computer turns on/off by itself

By zandril
Jan 24, 2016
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  1. I've seen some threads similar to my problem but I guess mine is a little more unique. When I turn my PC on it turns on fully but after a bit of time sometimes 5 minutes sometimes an hour the computer will automatically turn off and by that I mean windows 10 will begin to shut down. The PC also turns on by itself at random times as well. I've tested the ram and hard drive and they seem to be good. I've listed the specs below and sadly I don't have a way to check the PSU. I used HWmonitor and it does display the voltage coming from the different pins in the PSU I also included that in the post that it will help. Any advice would be greatly appreciated thanks guys.

    Operating System Windows 10 Pro 64-bit
    CPU Intel Core i5 2500K @ 3.30GHz 39 °C Sandy Bridge 32nm Technology
    RAM 8.00GB Dual-Channel DDR3 @ 665MHz (9-9-9-24)
    Motherboard MSI P67A-C43 (MS-7673) (SOCKET 0) 41 °C
    Graphics NVIDIA GeForce GTX 560 (Gigabyte) 42 °C

    Hardware monitor
    Voltage 0 3.38 Volts [0xD3] (+3.3V)
    Voltage 1 1.19 Volts [0x95] (CPU VCORE)
    Voltage 2 1.87 Volts [0x75] (VIN2)
    Voltage 3 1.41 Volts [0x78] (VIN3)
    Voltage 4 5.80 Volts [0x8A] (+5V)
    Voltage 5 8.18 Volts [0x5D] (+12V)
    Voltage 6 2.06 Volts [0x81] (VIN6)
    Voltage 7 3.23 Volts [0xCA] (VSB3V)
    Voltage 8 3.42 Volts [0xD6] (VBAT)
     
  2. jobeard

    jobeard TS Ambassador Posts: 9,330   +622

    To startup from a sleep condition, the internet NIC has a setting "Wake on Lan" and it normally should be OFF for home usage.
     
  3. zandril

    zandril TS Rookie Topic Starter

    okay ill check out the setting but why would it be shutting down though?
     
  4. jobeard

    jobeard TS Ambassador Posts: 9,330   +622

    Look to see how long it runs in minutes before it does - - is it ALWAYS the same? if so check you power plan settings.
    if not, suspect over heating.
     
  5. Cycloid Torus

    Cycloid Torus TS Evangelist Posts: 1,657   +309

    " Voltage 5 8.18 Volts [0x5D] (+12V) " Am I reading this right? The 12 volt bus is only at 8.18 volts???
     
  6. zandril

    zandril TS Rookie Topic Starter

    I checked it again using speccy it was about the same. The LAN setting though would it matter the pc isn't using a wired connection.
     
  7. Cycloid Torus

    Cycloid Torus TS Evangelist Posts: 1,657   +309

    If your +12v is only 8.18v then the computer shouldn't run at all.
     
  8. zandril

    zandril TS Rookie Topic Starter

    It's probably being read wrong. The computer I'm currently using says 8.09 and I've never had a problem on this machine.
     
  9. Cycloid Torus

    Cycloid Torus TS Evangelist Posts: 1,657   +309

  10. zandril

    zandril TS Rookie Topic Starter

  11. Cycloid Torus

    Cycloid Torus TS Evangelist Posts: 1,657   +309

    Use the problem computer and monitor the ranges. Range on a good PSU will be +/- 3% or so even when you run it hard. My 12v drops to 11.8v when I'm 100% load. Similarly watch temps - who knows you might have a single bad core or possibly your Northbridge needs a fan.
     
  12. zandril

    zandril TS Rookie Topic Starter

    I can confirm it is not the PSU lol I figured out the problem. Thanks for all the help but in the end it was just the power switch. I don't what gave me the idea, I booted the comp unplugged the switch bam no problem since.
     

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