Can’t turn on your computer? Don’t worry! Although this is an incredibly frustrating issue, you’re not the only one to experience it. And more importantly, it can be fixed…

Try these fixes

You may not have to try then all; just work your way down the list until you find the one that works for you.

  1. Undo your recent change to the hardware
  2. Check your monitor or display
  3. Check your computer power connection
  4. Check your computer power button
  5. Reinstall your RAM
  6. Removing and reseating the CMOS battery
Some of the fixes here require you to check the hardware inside your computer. If you don’t feel comfortable doing this, you may need to ask help from someone who has the related technical skills .

Fix 1: Undo your recent change to the hardware

The first thing you should try is to check if you made any change to your computer hardware before it can’t turn on. Check if you replaced or added any component. If you did, try undoing that change to see if this works for you.

Hopefully it does. But if not, there are still other fixes below for you to try…

Fix 2: Check your monitor or display

If your computer connects to the wrong screen, you may not be able to see anything on your computer when you turns it on. Just check that you have the correct video connection.

If this doesn’t resolve your problem, move on to the next fix, below.

Fix 3: Check your computer power connection

If the power connection of your computer is not working properly, you won’t be able to start your computer. To check its power connection, there are a few things you can try:

  1. Check that your power cable is properly connected to your computer and your power source.
  2. Replace your power cable with a new one to resolve any problems due to your cable.
  3. Try another power socket to fix any issues with the socket.
  4. If you’re using a laptop, use the external power instead of your battery. This will resolve your problem if there are any issues with the battery.
  5. Your computer problem may come from your power supply. Try using a different power supply to see if you can turn on your computer.

If this helped you turn on your computer, great! But if not, try Fix 4, below!

Fix 4: Check your computer power button

You won’t be able to power on your computer if the power button is faulty. To see if that’s the case for you:

  • If you’re using a desktop computer, one easy method is to get a computer case power button cable. Use the cable to replace the one that is connected to your motherboard. Then press the switch to see if this turns on your computer.
    A power button cable.
  • If you’re using a laptop, check that the power button isn’t broken or blocked by little debris.

If this didn’t work for you, you may need to try the next Fix, below.

Fix 5: Reinstall your RAM

You may having problems with your RAM (memory) so you can’t turn on your computer. Reinstalling RAM is an effective solution to these problems. To do so:

You may need to check the manual of your device for detailed instructions on how to do the steps below.
  1. Disconnect the power cable from your computer.
  2. Open your computer case (for desktop computers) or remove the cover of your laptop.
  3. Remove RAM from your computer.
    What desktop computer RAM looks like.
    What laptop RAM looks like.
  4. Install it back to your computer.
  5. Reinstall the cover you removed on your computer.

Now you should be able to turn on your computer. But if not, you may need to…

Fix 6: Removing and reseating the CMOS battery

This is an effective way to reset your motherboard settings, which is helpful for fixing your computer issues. To do so:

You may need to check the manual of your device for detailed instructions on how to do the steps below.
  1. Disconnect the power cable from your computer.
  2. Open your computer case (for desktop computers) or remove the cover of your laptop.
  3. Remove the CMOS battery.
    What a CMOS battery looks like.
  4. Press the power button on your computer for at least 10 seconds.
  5. Place the battery back to where it was.
  6. Reinstall the cover you removed on your computer.

Now check to see if you’re able to turn on your computer.

Hopefully one of the fixes above worked for you. If you have any questions or suggestions, feel free to leave us a comment below.

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