What to Do if Your Computer Randomly Turns Off

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Frustration can be at its peak if your computer begins to randomly turn off. The main thing not to do is throw it out the window. Remain calm and follow the simple steps below to help diagnose the problem and ultimately solve the nuisance.

Things You'll Need

  • Computer
  • Canned Air
  • Check all main power plugs and the monitor plug in for both power and the graphics card connection by unplugging and reseating the connection.. Try replacing the main power plug for the computer. If you are plugged in through a power strip or universal power supply bypass these devices and plug directly into the wall socket. If this alleviates the problem replace either device or all of them.

  • Unplug all power from the computer if you are still experiencing the random turn off. Remove the cover from the computer and check all power connections inside the computer from the power supply. Unplug and reseat all power connectors to the hard drive, CD-ROM drive and motherboard connections. Leave the cover off and reboot the computer. If the problem still persists remove all main power again and reseat the memory modules. Remove the memory modules, inspect the copper connectors and reseat. Apply power and reboot.

  • Clean the inside of the computer with canned air. Pay special attention to the power supply and the fans that cool all devices such as the main CPU. Thoroughly spray out all cooling fins. Dust accumulation under the cooling fins can be a cause heat to the CPU and create a premature shutdown. Be sure to allow the canned air to dry as moisture can collect from the canned air being held upside down and sprayed on the motherboard.

  • Uninstall any new software that has been recently added to your computer. Some programs maybe incompatible with the main operating software and cause the computer to randomly turn off.

  • Check all BIOS settings upon initial boot up of the computer. Reset all settings to default conditions and reboot. Many times a sleep mode setting or power off setting may have been changed and can create a shutdown mode on the computer.

Tips & Warnings

  • Always operate computers in a dry environment. High humidity combined with a dusty interior in the computer can create small connections to short against each other.
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