It must be one of the most inconvenient circumstances when your computer unexpectedly shuts down in the middle of your work and won’t turn back on until you unplug it. It gets worse if it doesn’t turn back on after that. To make matters worse, you may discover that the machine will not restart. If you’ve found yourself in this situation, don’t worry; you’re not alone. When it does, you’ll be on pins and needles, expecting for it to shut off again without warning. First, let us try to figure out what the possible causes of the problem are so that we can remedy it.
Reasons why computer shuts off and won’t turn back on until you unplug it
Cables or outlets that aren’t working
The most common cause of a computer shutting down unexpectedly is a faulty outlet or power cable. The system will shut down when it can no longer draw enough power to operate reliably.
- To begin, examine the electrical outlet into which your computer is plugged. Check to see if a simple object, such as a lamp, functions properly.
- Second, if you’re using a surge protector or power strip, double-check that it’s in good working order. Check that the light is connected to the surge protector and that the switch is switched on.
- Last but not least, double-check the power cable. Examine the area for any evidence of damage. Check that it is properly attached to the power supply and has not gotten loose over time.
- Then, using a multimeter, examine the cable for any potential open circuits. If the multimeter beeps, it means the electrical connection is satisfactory. If this is not the case, you will need to replace the power cord with a similar gauge.
Although this is an unusual problem with prebuilt PCs, it is a common cause of the problems you are experiencing. When a motherboard is directly fastened to the chassis without the requisite standoffs, a short occurs. Molex connectors that come into touch with the case due to misplaced pins are another example. Move the cables around and neatly and gently tidy them up to see if the problem has been resolved.
When computer shuts off and won’t turn back on until you unplug it, it’s likely that your computer’s static charge or flea power is causing the issue. Draining the stored energy may be beneficial. Unplug all of the cables from your PC. Keep the power button pressed for at least 30 seconds. After releasing the key, reconnect the wires.
Check to see if the issue persists after restarting your device. If your computer keeps shutting down and unplugging it repairs it, the capacitors may be overcharged. Capacitors are the components in charge of removing residual charge, and the way you tried in the previous section was a different approach to the problem.
If this does not solve the problem, you should inspect the capacitors on the motherboard and the power supply unit. A cross-shaped seam runs across the top of capacitors. The top should be smooth and flat in most cases. The capacitor is bad if it has electrolyte coated on it or if the top is bloated. Keep in mind that you should get one of the same values. Take your computer to a professional if you don’t know how to do it yourself. You can change the capacitor yourself if you know how to solder.
Components or a Dirty Power Source
Dust accumulation on your PC could be the source of the problem, preventing connections from receiving adequate electricity and shutting down the entire system. If it’s been a while since you got your PC or the last time you cleaned it, dust, hair, and other debris may have accumulated on the components. Using a compressed air duster is the easiest way to do it. Turn off and unplug your computer first. To clean components, open the case’s side panel and blow air on them. Close the case and turn on your machine to try it out once you’re finished.
PCs shut down unexpectedly due to overheating. If you’re not overusing your computer, one of the fans may have failed, or dirt and debris may be causing the components to overheat. By opening the case and turning on your computer, you can check the fans and make sure they’re working. If you haven’t already, use compressed air to clean the parts. Allow ample space around the enclosure for air to circulate. It should not be placed on a carpet or similar surface.
Your cooling system may not be able to keep the temperature down if you’re pushing your system to its limits with demanding programs or overclocking. If you discover that the CPU, RAM, or other components are overheating, you’ll need to either upgrade the cooling system or cease overclocking the machine.
However, if changing the Power Supply Unit did not help, and everything else has failed, your motherboard may be defective.
Because it is difficult to diagnose motherboard problems, you should take your computer to an expert or a computer repair shop.
How To Fix A Computer That Is Suddenly Turning Off And Won’t Turn Back On
Here are some suggestions to assist you in resolving the problem and getting your computer back up and running.
Check Your Power Cord
A defective or damaged power cord is the most typical cause of your computer shutting down. If you are unsure whether the power line is faulty, check for an open circuit with a voltmeter. Recognize that the item will only be useful if an electrical connection is present. If there is no sound, the power wires are not properly connected.
Drain the power
Usually, turning off a computer is the greatest way to start it up. This suggests that the static charge on the machine must be discharged. To begin, disconnect all wires before pressing and holding the power button for 20-30 seconds. Then, using the key, reconnect all of your cords. You can restart your system once you’ve ensured that everything is in working order.
Check your power supply.
Keep in mind that the issue could be with your power supply unit. So go through your extra connectors and see if any of the drive bays are causing a short. In most cases, all you need to do is shift the cords and clean them up neatly to solve the problem.
Clean up your computer
Keep in mind that dust can sometimes prevent certain connectors from receiving appropriate power. As a result, if your computer is randomly shutting down, you should carefully clean the CPU and other components. This will allow for a steadier electrical flow, hence resolving your issue.
Over to you
Try to find the right possibilities and make sure you follow the steps clearly mentioned in this article; if the problem of computer shuts off and won’t turn back on until you unplug it still persists, try to take it to the service to fix the problem.