If the computer restarts

Although modern computers are quite reliable devices, nevertheless, there are occasional situations in which even users with experience are powerless. To solve them you have to resort to recommendations in the global network or even contact the service centers. If the computer reboots itself, it's time to talk about exactly this situation.

To eliminate the cause of such anomalous behavior, it is necessary to determine it correctly. The computer restarts due to both hardware and software problems. In some cases, self-repair is possible.

One of the most common reasons why a computer reboots is the reset button (reset, reset) of the system unit. In the global web there is even a funny proverb, this paraphrased Shakespeare, which indicates one of the reasons for spontaneous reboots. As you know, there are two buttons on the PC case - on / off and reset. The second is a "hot" restart of the entire system, zeroing out all the results of the work.

Physically, it is made in the form of two spring-loaded, normally open electrical contacts. When you hang up, just press this button and the computer restarts. Convenient and effective. But sometimes a conductive object gets into the gap between the contacts, or the contacts themselves buckle due to excessive pressing. As a result, the computer does not boot, getting into the reboot cycle. Sometimes the state of the contacts allows you to boot. But at any time, all work is reset and the computer restarts. So, immediately check the state of the reset button with the tester.

Also, spontaneous reboots occur due to overheating of internal components. Open the case and visually check the condition of the fans on the processor, video card and power supply - they must rotate when the computer is running. It is preliminary useful to clean metal radiators from heat-insulating dust. During operation, we control the temperatures using the program AIDA64 (Computer - Sensors). For values above 60-70 degrees it is worth considering additional cooling and / or replacing the cooling system. By the way, sometimes working with a computer that has a side cover of the system unit can help.

The next common cause of reboots is the addition of new hardware that proved incompatible with the existing configuration. So, sometimes it's enough just to connect a PCI sound card, so that the computer's work ceases to be stable. Solution: disable all the "extra" devices.

Sometimes spontaneous reboots are caused by faults in the memory modules. The system can work fine until an attempt is made to write to the failed cells of the microcircuits. You should prepare a test disk or a flash drive with the MemTest86 + program and test the memory. A cardinal solution is to remove one module from the board (if there are several of them) and test the computer with it, then the same for the other module - so you can identify the faulty one. By the way, if the computer reboots when shutdown , the reason may be to update the software.