CPU cooling air duct blockage causes shutdown failure
Fault phenomenon: The computer suddenly shuts down after working for more than an hour. It can be turned on again after a while, but it shuts down again after a while.
Solution: Since it can be turned on, it means that the hardware system is fine. The reason for this is probably that the CPU temperature is too high, and the protection function is automatically turned on and shuts down. So we disassemble the laptop to check. If there is no problem with the CPU fan, disassemble the cooling air duct and find that the air duct is blocked by some flocculent objects. After cleaning and restoring the laptop, the fault can be solved.
CPU fan stops rotating and causes crash
Fault phenomenon: The CPU fan of the laptop sometimes stops rotating, causing the CPU temperature to be too high and causing crash.
Solution: Mobile CPUs basically have temperature protection functions. When the CPU temperature exceeds a certain limit, it will crash or restart to protect the CPU. If there is a problem with the CPU fan, it should be sent for repair as soon as possible to eliminate the fault and ensure the normal operation of the fan.
The CPU fan of the laptop sometimes rotates and sometimes stops
Fault phenomenon: After using a Toshiba M2 laptop of a friend for a period of time, it was found that the CPU fan sometimes rotates and sometimes does not rotate, but the body temperature feels always very high.
Solution: The fan of the laptop is designed with temperature control. Generally, it will rotate only when the CPU temperature is higher than 70℃. The high body temperature does not mean that the internal temperature is really high, so this problem is not a big deal.
