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How To Tell If The CPU Is Dead?

How to tell if the CPU is dead? This question is frequently asked by most people who find difficulty in indicating the CPU’s have a finite life, and after a certain point they can no longer be used. However, because CPUs work so hard to maintain a functional computing device, a CPU may work for many years before being rendered unusable. To determine if your CPU has been defeated by old age, you have two options. The first step is to check the diagnostic lights on your computer case.

How To Tell If The CPU Is Dead

Symptoms Of CPU Failure

The CPU is one of the most important components in any computer system. It works to coordinate and manage all other components, which can lead to several symptoms if it becomes faulty. When a CPU fails, it can result in an inability for the computer to complete tasks or show signs of slowing down. When it comes to computers, the most common symptom of a CPU failure is that the computer either doesn’t turn on or has frequent blue screens.

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Hardware failures are often difficult to diagnose and repair. Some symptoms of CPU failure may seem innocuous at first but can lead to system crashes and data loss if left untreated. Common symptoms of CPU failure include computer shutdowns, slow startup, sudden reboots, and the inability to boot the operating system. Luckily, there are warning signs that can help prevent a catastrophic computer crash in these instances.

Signs of a Dead CPU

A lack of response from the power button and LEDs on the computer case, no video signal from the monitor, etc.

How To Determine If The CPU Is Dead?

It is very easy to determine the problems that may lead to dead flu just by focusing on the main facts.

By Sound

Dead CPUs are becoming more and more frequent with the advancement in technology. Some people have even resorted to using sound detection to locate their failed CPUs. To determine if a CPU is dead, one can listen for a tapping sound. The customer support will help you to know fault via reading beep codes and error messages. If there is no sound at all, the CPU may be a goner. If there’s a ticking sound, it should be considered faulty and replaced as soon as possible.

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By Disconnecting The CPU

If you have a computer that is constantly running slow, or crashing, there may be a problem with the CPU. However, it can be difficult to find out which CPU is causing the problem without being able to see them. To do so, follow these steps:

  1. First, turn off your computer and remove the power surge from the outlet.
  2. Disconnect each wire from your computer case along with power cables.
  3. This should be done while the computer is off, and make sure that the power button is off. 
  4. In the meantime, remove the CPU from its socket. 

By Removing The Heat-Sink

When the computer starts to overheat, that is the common issue it will start to freeze up, but kicking the power off and on should fix it. It releases a lot of heat and as a result, the computer turns the heat up. Removing the heatsink may enable you to see if you have a bad CPU because oftentimes people will report that their computer crashes or freezes when they take it out, but this is due to the dead processor. Powering off and on again will reactivate the processor so no need for replacement.

By Connecting It With Another PC

For the best performance of the processor, it is necessary to have the best compatible computer also. If the processor is not working then connecting it will the other computer to check whether it is dead or not compatible with your computer. Check the computer processor on the test computer in the following way.

The first step is to remove the power cord from both computers and also Heatsink and processor from the suspected computer.

Attach it with the second computer and reconnect the power cord. Turn on the power supply unit of the computer if the beep sequence doesn’t come then the CPU is dead. In case of failure, the computer will not show the boot process to BIOS. Now you will need to apply the computer repair process to correct the central processing unit according to a diagnosed problem.


In conclusion, the following are some signs of a dead CPU: 

  • Extremely low battery life.
  • Turning on your device, and it does not display anything on the screen.
  • Computer always rebooting or shutting down on its own.

If you notice any of these signs, it may be time to replace your CPU.

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