why does my computer suddenly shut down
Why does my computer turn off without warning? This document is for computers that turn off and remain off after an extended period of use. It is not for, or. Some of the steps below require you to work inside your computer. Before opening your case, be aware of the dangers of. Most computers today are designed to turn off automatically if any of its inner components overheat. Often, heat related issues occur when the computer is working hard, e. g. , playing a graphically intense computer game. Start by verifying the fan on the is working by examining the back of the computer. The fan should be moving quickly and smoothly. All other
in the computer require you to to inspect them. Once you have access to the inside of your machine, examine the processor ( ), and. If you have heard any abnormal noises coming from your computer, such as a high squealing sound, it could be an indication of a fan malfunction. If you find that the fan in the power supply is not working correctly or at all, and the power supply is very hot to the touch, you may need to replace the power supply. An overheating power supply, due to a malfunctioning fan, can cause a computer to shut off unexpectedly. Continuing to use the faulty power supply can result in damage to the computer and should be replaced immediately.
If your issues are on a, we do not suggest opening the computer. Instead, verify the fan on the side of the computer is working and blowing out hot air. Also, with a laptop, you may want to invest in a to help lower its running temperature. Working on the interior of your machine provides an opportune time to. Dust, dirt, hair, and other trapped debris can prevent proper air flow, which may lead to overheating. If your monitors the of the fans, and make sure the BIOS does not report any errors. Software utilities such as can also be used to help monitor fans in your computer. Check the processor heat sink to make sure it is properly seated and has the correct amount of thermal compound. If you do remove the processor heat sink, should be cleaned off and new thermal compound should be applied. Before attempting to remove any hardware, rule out hardware conflicts by. Any failing component in your computer could cause your computer to unexpectedly turn off without warning. If you have recently added any new hardware, remove it from the computer to make sure it is not the cause of the problem. If you have not recently installed any new hardware into the computer, the next best solution is to systematically remove non-essential hardware. For example, remove your modem, network card, sound card, and any other expansion cards that are not needed for your computer to operate.
Running the computer without these cards may help diagnose your issue. Make sure any or Uninterruptible Power Supply ( ) is not the cause of your problem by connecting the computer directly to the power outlet on the wall. Also, if you have a UPS that connects a cable to the computer to manage power saving features, make sure it is also disconnected. If this resolves your problem, you may have a defective surge protector or UPS. In the case of the UPS, there may be other issues, such as a UPS overload or UPS drivers, reporting bad power situations that cause your computer to shutdown. Make sure there are not too many devices connected to your UPS and that it has the latest software updates. Your computer may be infected with a or other that is designed to shut down your computer upon certain conditions. If your computer seems to be turning off when executing a certain program at specific times of the day, it could be infected. If you believe your computer may be infected with a virus,. If you already have one installed, make sure your, then run a full scan. If after following each of the above recommendations your computer still continues to shut off, it is possible you are experiencing a problem at the operating system level.
To see if this is the case, try the steps below. Reboot the computer and as the computer is booting. After you have loaded the computer in CMOS setup, let the computer sit. If the computer does not turn off after staying idle in CMOS, your operating system installation may be corrupt. We recommended that you. If your turns off abnormally during (or just after) installation of your, it is likely that other is failing in the computer. Often, the hardware causing the issue will be either the, or, in that order. If you have extra parts or know someone who has a similar configuration that allow you to try their hardware in your computer, you can swap each part to determine if it is at fault. Otherwise, you need to have your computer serviced. Computers come with heat sinks and fans to keep the CPU cool because if this component overheats the computer will shut down so that the CPU isn't damaged any further. Adding thermal paste between the CPU and its heat sink can help prevent overheating as can working cooling systems like fans or water cooling. Dust and pet hair can get sucked into the computer case and clog up air flow as well. This too can cause the CPU to overheat so keep the insides of the computer clean using compressed air to blow out any foreign objects.
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