1. There are bad sectors of hard disk

Confirm the method used by the user to detect bad sectors of hard disk. If they are tested with the third party recognized software, issue an order for repair;

If the bad sectors of hard disk are judged according to the error report of an application, the user is suggested to have detection again with the disk scanning procedures built in the operating system, and if there are also bad sectors damaged, send an order for repair.

2. The system is powered off automatically after running for a period of time

First confirm whether the power supply is normal, whether there is an external UPS, and exclude the power environmental factors;

Understand the time of automatic power failure of server, if the time is short, enter BIOS first, and wait for a period of time, if the fault occurs again, judge it as the hardware fault, and issue an order for repair;

Confirm the reminding or status before restarting or power off: when reminding the error information of some applications or reminding the time of power off, confirm which application, and uninstall it, or detect and kill the virus.

Detect and kill the virus (if necessary, detect the virus in safety mode).

If the problem above is still not solved, issue an order for repair.

3. Shutdown during system running

Collect the information before and after occurring of fault:

Whether the hardware configuration has been changed; whether there is third party hardware; in case of change of hardware, restore the factory configuration for observation;

Confirm the machine running environment, temperature and dust, and judge whether the problem is caused by over-heating;

Guide the user to enter BIOS, and observe under BIOS mode, and observe the fault occurs again within the same time; if not, examine the operating system and other software, and reinstall the system for test.

If the above is in vain, issue an order for repair.