How to fix a dead computer that wont turn on?

Date Published: June 29, 2020
Last Modified: December 26, 2020 @ 4:03 pm



Power button pressed but not starting


It can be scary and troublesome when your computer doesn’t turn on after pushing the power button and there are various reasons why this could happen.

If there is no power at all going into your desktop computer system a major factor could possibly be the PSU (Power Supply). 

Usually taking out the power supply and testing with another one can verify this or using a power supply tester.

Also testing another power cord can help because there has been times when these have been faulty and by replacing it, the computer has started to work.

It can also be the motherboard which might require fault testing. And may require a computer repairing company to do this for you.


Asus Prime Motherboard

Example of Desktop PC Motherboard


If its a laptop, it could be motherboard, charger or charging port. Most the time when there’s a power issue or charging issue with laptops it can be the DC Jack (Charging port where the power charger plugs into). At times these can break and need to be re-soldered or replaced.



Broken DC Jack

Example of a DC Jack Broken



Power comes on but no display


This is when you hear sounds and see lights but you get no display on the screen. This problem could be caused by variety of different things some of them include:

  • Faulty graphics card, which can be tested by taking out the graphics card and if there is onboard graphics try switching to that one.
  • Faulty RAM, usually we get beep codes with this one. Replacing the ram can help with this.
  • Faulty Motherboard
  • A plugged in device that is faulty (USB drives, cables, etc.)
  • Faulty cable from the computer to the display
  • The monitor is faulty

Note: We recommend you get a technician to do this for you as you may damage your computer or hurt yourself. Make sure you read other tutorials on the internet and get familiar with how to safely open and repair your computer yourself. This article is just for information purposes.



ASUS TUF Graphics Card


Lights up, can hear sounds and may or may not see display, but doesn’t go into Windows


This is like a semi boot-up where the computer will start up and try to load but wont go further. So you can see something on the screen but not the actual operating system.

When the computer first turns on it goes through a booting process where it has find all the parts in the computer and do a basic check as to see if there all there and ready.

So the BIOS will go through doing a quick check on the Motherboard, CPU, RAM, Graphics Card and any other devices. If there’s a problem with any parts it will then lead to the computer making beep sounds which indicate the part which is not working properly.

If this is the case then you will need to look at the error sound codes for the particular motherboard.

If all that goes through okay we may at some point arrive at some type of boot missing type of message, which generally means something wrong with the hard drive which may need to be replaced.



Error message just before getting into Windows or not getting further past the spinning Windows icon


This is a general indication of some software problem with Windows and could be anything from corrupted filesystem and drivers, antivirus software, viruses or malware, faulty programs or failing hard drive (which is corrupting the file system). It could possibly be other hardware problems too as when Windows tries to perform tasks it will run into a problem trying to utilize the hardware and show a blue screen.

This can be difficult to repair and if Windows is unfix-able it may require a backup of the data from the hard drive and a fresh installation of Windows, then the backup restored.

Its possible to get hold of a antivirus rescue disc to scan your hard drive for malware problems. this will scan your computer outside of the actual Windows environment.


Related Articles

Why the computer is shutting down by itself

Why the computer is shutting down by itself

Your computer keeps shutting down and you don't know what could be causing it? Having your computer shut down all the time or randomly can signal a few things that may be wrong with your computer and they usually aren't a good indication. Heat-related issues One of...

read more
What are the common problems of computers?

What are the common problems of computers?

The most common problems experienced with computers From time to time, we can experience various problems with our computer and when we need to use the computer for some important matter these problems can get in the way so we have listed below the most common...

read more
Are laptops worth repairing?

Are laptops worth repairing?

Your laptop is playing up and you are wondering if you should get it repaired   Laptops usually don't last a long time because they are a bit more compact which can contribute to them getting hotter than usual, getting damaged by liquids, knocks or bumps,...

read more