2. In the BIOS, turn off the temperature control. I guess the temperature control is not working. When the temperature of the CPU itself keeps rising, in order to protect the security of the CPU, the CPU will automatically reduce the running frequency, resulting in a slower running speed. When the temperature reaches the critical value that the CPU can bear, the CPU will run a protection program and automatically shut down the computer.
3. CPU: the abbreviation of centralized processing unit (PCH) PCH is an integrated south bridge of intel company.