• March 4, 2024

TOP-8 best programs for PC diagnostics

Every computer user at least once in his life had to turn to software, the task of which is to diagnose the computer and troubleshoot. However, on the Internet, you can find dozens, if not hundreds of different programs of this purpose. Which of them should you pay attention to?

In today’s article, we will take a look at eight of the best programs that will undoubtedly come in handy when identifying problems with your PC. Let’s get started.


CPU-Z is free software, the function of which is to display technical information about the hardware of the user’s computer. This program was developed by the forces of the CPUID company, in the assortment of which there are also other interesting programs, but CPU-Z is, perhaps, the most useful for many users.

With CPU-Z you can get a complete list of information about:

  • central processing unit;
  • motherboard;
  • random access memory;
  • graphics accelerator.

When we talk about a complete list of information, we mean such information as CPU architecture, motherboard model, BIOS / UEFI version, amount of RAM and its frequency, and so on and so forth. With CPU-Z, you can get a really huge amount of really useful information.

Moreover, this program has even been fully translated into Russian. However, we cannot fail to mention one extremely big disadvantage, which can be found out almost immediately after researching all the functionality. And this minus is the lack of a function for reading the temperature of the CPU, GPU and motherboard elements.

If CPU-Z had such functionality, then there would be no price for it. Nevertheless, for measuring temperature, you will need to resort to other programs, some of which we will consider later in this article.


Speccy is another free and fairly functional program with which users can get various technical information about their computer. It is worth noting that the well-known company Piriform is behind the development of the Speccy utility, which also developed such popular programs as CCleaner, Defraggler and Recuva.

By opening the Speccy program, you will be able to access a number of information on:

  • operating system;
  • central processor;
  • random access memory;
  • system board (i.e. motherboard);
  • graphics devices (discrete and integrated video cards);
  • storage devices (HDD, SSD, etc.);
  • optical drives;
  • sound devices;
  • peripheral devices;
  • network devices.

In general, using the Speccy program, you can get a fairly wide range of information about your computer. Also, do not forget that the Speccy has a function to read the temperature from various sensors installed in the computer. You can see the temperature of your PC, motherboard, video card and even HDD / SSD drives.

A couple more advantages of the Speccy program – it is completely localized into Russian and has an extremely simple user interface. Click on the desired tab on the left side of the window and look at the available information on the right – it just couldn’t be easier.


The next program on our list is a little more difficult to use than the previous two, but it can provide users with even more detailed information about the computer. As soon as you start a system scan using HWiNFO, several windows will immediately appear in front of you: general information about the entire system, the main HWiNFO window, where you can find specific information on certain components of your computer, as well as a small window for monitoring the processor’s operation (multiplier, frequency, number of cores, etc.).

Among other things, the HWiNFO program can also read information from various sensors located in the computer. Virtual and physical memory, paging file usage, voltage on each of the CPU cores, the frequency of each CPU core, northbridge, system bus, RAM, data from temperature sensors in the system – whatever you want. It’s worth noting, though, that the user interface in HWiNFO can seem pretty confusing to inexperienced PC users, so you may need to sit in front of the program to see what it has to offer.


AIDA64 is an extremely powerful tool from FinalWire Ltd. to diagnose and carry out various checks of the user’s computer hardware. Quite an interesting fact: AIDA64 is a direct successor of the company’s Everest software, which in turn is a successor of the AIDA32 program.

This is such an unusual origin of this program. She knows how to do everything that previous programs can, plus a set of stress tests, with which you can identify various problems with your computer. It is worth noting that AIDA64 has an extremely rich set of functions, but, unlike HDiNFO, the user interface is much simpler, which is definitely a huge plus. Well, here’s the downside: the program is not free.

PassMark Performance Test

If previous programs could offer the user similar functionality, then the PassMark Performance Test utility is a slightly different tool. The purpose of this program is to assess the performance of a computer using a set of various specialized tests, after which the user can compare the results obtained with the results of other computers.

With the PassMark Performance Test utility, you can run various tests for:

  • central processor;
  • graphics accelerator;
  • hard drive;
  • optical drives;
  • random access memory.

It is worth noting that the user has the opportunity to save the test results of his computer in many formats, for example, HTML or a Word document, which can be shared with other people, resources, and so on.

With the PassMark Performance Test, you can easily tell if your computer is delivering adequate performance or not. And if not, then through multiple tests you will understand what the problem is. Unfortunately, this utility is not free: to get access to certain functionality, you need to buy it.


CrystalDiskMark comes in handy when you need to test your hard disk drive (HDD) or solid state drive (SSD). The program is able to work with all interfaces available today for connecting drives. For the most part, with the help of the CrystalDiskMark utility, many users will learn the read and write parameters of their disks. Nevertheless, at the end of the program’s work, you will see an extensive report on the tests performed, which, unfortunately, we will tell little to unprepared users, but for experienced users – a lot will become clear if they are looking for some problems.


SpeedFan is a rather interesting program created by a developer under the name of Alfredo Milani Comparetti, which is designed to read information from sensors of the motherboard, HDD and SSD disks, central processor, RAM and video card, and also has functions for adjusting the rotation speed (RPM) coolers present in the computer. Fortunately, the user interface of the SpeedFan application is extremely simple and even translated into Russian, and it is also distributed completely free of charge.

System Information for Windows

And the last program on our list is System Information for Windows (SIW). This program was also developed by one person – and his Gabriel Topala. The utility is an extremely powerful tool with which you can get detailed information about the hardware configuration of your computer.

Among other things, with the help of SIW you can find out network information, information about installed software, including drivers, as well as system components. The interface of the system is a little intricate, but you can still get used to it, after which you will have access to the extremely wide functionality of the program, for which, by the way, there is no need to pay.

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