Summary :

computer turns on and off

The error that computer turns on and off can be caused by several reasons and it is a difficult issue. So, to find out and fix the problem that computer turns on then shuts off and repeats is an important thing. This post from MiniTool will show you how to fix it.

Some users complain that they encounter the error that computer turns on and off. This error can be caused by various reasons. Usually, the problem that computer turns on then shuts off and repeats is caused by the electrical short or hardware problems.

So, in the following section, we will show you how to solve the problem computer turns on and off repeatedly.

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Don't know how to fix the issue of computer turns on by itself. This post shows you 5 fixes to PC turns on by itself.

How to Fix Computer Turns on and Off Repeatedly

In this part, we will show you how to solve the error that computer turns on and off by itself.

Solution 1. Check Power Supply and Cable

To fix the problem that computer turns on and off repeatedly, you can check the power supply and cable firstly. If the input voltage for the power supply does not match the correct settings for your country, your computer might not stay powered on.

If the power supply is correct, then check whether the cable is connected correctly. Make sure that all cables inside the computer case are firmly attached to the motherboard and each component. You can check the IDE cables and SATA cables, which are connected to the hard drive, CD or DVD, and floppy drives. Check both ends of each cable and make sure they are firmly attached to the component and the motherboard.

After checking the power supply and cable, reboot your computer and check whether the error that computer turns on and off is solved.

Solution 2. Check Computer Temperature

When you encounter the error that computer turns on and off repeatedly, you can also check the temperature of computer and check whether it is overheated. If the computer is overheated, it will shut down automatically.

So, in order to cool down the computer, it may need you to open your computer. And you can read the post How to Fix Laptop Overheating and Rescue Your Data? to learn more detailed solutions.

When it is finished, check whether the error that computer turns on and off repeatedly is solved.

Solution 3. Check Memory

To fix the error that computer turns on then shuts off and repeats, you also need to check the memory and verify the memory modules are properly seated in the memory slots on the motherboard.

Now, here is the tutorial.

  1. Open the computer.
  2. Remove the memory modules from their slots.
  3. Then reseat them.

One thing you need to note is that memory modules should be installed in pairs and in matching slots, which are designed by matching color.

So, in order to solve the problem that computer turns on and off repeatedly, make sure the chips are firmly seated and the clamps on both sides of each chip snap.

Solution 4. Check Motherboard

At last, you can try checking motherboard to fix the problem that computer turns on and off. However, to check motherboard, it would be rather difficult since the problem could be anywhere in the circuitry. A faulty circuit or malfunctioning component can cause the computer to shut off immediately or not turn on at all.

After trying checking the motherboard, you can check whether the error that computer turns on and off is solved.

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How to tell if motherboard is dead? Just do a check and this post will show you how to test motherboard, as well as some related information.

If none of the above solutions can fix the problem that computer turns on and off repeatedly, you may need to go to the computer repair shop to fix the problem.

Final Words

To sum up, this post has introduced how to solve the problem that computer turns on and off. If you have encountered the same problem, try these solutions. If you have any better solution to fix it, you can share it in the comment zone.