The reasons for the computer to restart by itself can be hidden both in the software part and in the hardware part. Unfortunately, their number is innumerable, so each problem is very individual.

most common causes

So, let’s examine the most common causes of random reboots.

Hardware malfunctions:

• Overheating of components.
• Hardware errors.
• Component shortage.
• Thermal paste wear.
• Motherboard capacitor failure.
• Hardware conflicts (incompatible computer parts).
• Lack of power supply unit.

Software crashes:

• Tampering with the system registry.
• Presence of a virus.
• Problems with the device driver.
• Software bugs.
• User errors.

Also, the following can be attributed to the factors that cause the reboot:

• Unlicensed version of Windows.
• No driver digital signature.
• Incorrect overclocking of the system.
• Incompatibility of the software with the current version of the operating system.
• Changing BIOS settings.

Let’s take a closer look at the most common causes of reboots.

overheating

One of the most common system reboot situations is related to the processor overheating. To make sure that it is the source of the fault, it is necessary to find out the temperature at the time of reboot and during standard operation. You can use any suitable utility to measure the CPU temperature. You can find dozens of such programs, both paid and free, on the Internet. Example:

• MSI Afterburner.
• Hardware monitor.
• CPU-Z.
• AIDA64 Extreme Edition.
• Piriform Speccy.
• HWMonitor (HWiNFO).
• Open Hardware Monitor.
• NZXT CAM.

Job not loaded the processor must have a temperature in the range of 35 to 55 degrees Celsius. Under load, the CPU can heat up to 100 degrees.

To reduce the temperature of the processor, it is necessary to clean the external and internal parts of the system unit from dust and dirt. It is also necessary to create good air circulation inside the system unit, replace the thermal paste and be sure to clean all the heatsinks. It is the fans and radiators that collect most of the dust, they get dirty quickly and always require maintenance. It is also worth paying attention to all ventilation elements of the system unit – they must be open for air circulation.

Errors and lack of components during PC assembly

Another common reason for restarting a computer is using faulty hardware or choosing incompatible parts. If the computer was assembled by the user himself, special attention should be paid to stress tests – they are used to check the performance of all components under maximum load.

data store

If at least one RAM die is of poor quality (for example, unscrupulous craftsmen may have installed bad or worn memory during assembly), the system may involuntarily reboot. At the same time, a blue screen of death appears, usually with the code 0x0000007f or some other numerical value.

A reboot can also be caused by the following factors:

• Memory chips with different frequencies are used from different manufacturers.
• Fault in the DIMM slot on the motherboard.

Power source

Low-quality power supply units from dubious manufacturers break down very quickly. In addition, they behave poorly under high load and cannot cope with situations when all computing resources of the computer are used. When assembling a PC, it is always necessary to start from the purpose of the computer. Therefore, installing a powerful gaming video card in an office computer is not only impractical, but also dangerous for the entire system in general – the power supply will not work properly with such a video card.

hard drive

Constant reboot of the system due to failure of the hard disk can be determined by slowing down the speed of writing / reading files. A decrease in hard disk performance, file system errors, constant “freezes” indicate that the cause of the reboot may be HDD failure. You can use special software to diagnose the condition of the hard disk.

Software bugs

Reboots due to software bugs usually happen after installing the latest Windows updates. Also, the problem can be hidden in the use of any software. During the launch of “heavy” software from Adobe, 1C, Autodesk, the system often reboots. Its products are very demanding on computer resources. In the case of a reboot, when working in any program, it is necessary to make sure that the PC specifications meet the minimum system requirements of the program.

User errors

Reboots due to user errors often occur when changing BIOS settings, for example when overclocking certain components. If reboots have occurred very recently, you need to remember if the registry has been changed recently.

It is also worth checking the system with the help of antivirus software. The presence of virus code (for example, after installing pirated programs or games) is one of the frequent causes of an independent reboot of the system. You may have a cryptocurrency miner installed on your computer that is overloading your video card.