How To Check Computer Hardware Components?

1. Check the monitor or screen

Check Computer Hardware with the monitor

Your computer or monitor screen has pixels. These pixels have three colors: red, green and blue. Pixel can get damaged or stopped working, just show a color or just black.

There is an online tool to access bad pixels called "CheckPixels". The test in CheckPixels shows its three main colors mentioned above, and if a pixel is dead, it appears as a black dot, and if a pixel burns in a different color (malfunction), you will see it.

2. Check the Keyboard

Check Computer Hardware with the Keyboard

For laptop users, the keyboard is very important. There is also an online test tool available to test all your keyboard keys called "Keyboard Tester".

3. Check the hard drive (hard drive and SSD)

Check Computer Hardware with the hard drive

Your HDD / SSD has your operating system and most of your applications and files. Your healthy HDD / SDD is very important. Various instruments are available to check the fitness and health of the HDD / SDD.

On the left side of the screen, the discs connected to the computer are displayed. Health is the most important parameter to search. As an example, you should not only play your hard drive due to some hard disks and IO errors.

It also shows health in percent and the expected life of the device. Like hard drives, bad sectors can occur in SSDs.

4. Check the Processors (CPU and GPU)

Check Computer Hardware with the Processors

The main components that perform full processing are the central processing unit (CPU) and the graphics processing unit (GPU). These are the components that allow you to run applications from your office and your games. These are also essential components to make sure they are in perfect condition. To test both, we used the CPU speed test.

To test your GPU, the tool. The web 3.0 database works well.

5. Check the random access memory (RAM)

Check Computer Hardware with the RAM

RAM is the only essential component that has the direct impact on your computer's performance. HCT Design's MemTest is a great tool for checking your unused memory for errors. Errors in RAM cause the infamous 'blue screen of death'. Startup problems can also be attributed to RAM errors.


In addition to testing of the above hardware components, you must also check your Ethernet ports and connect wirelessly through the wireless (internal or external), HDMI, DVI, and USB card connections via cables and available devices.

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