Why does the IBM laptop suddenly shut down automatically? Is it because of the hot weather?

Today's motherboards have a temperature monitoring function for the CPU. Once the CPU temperature is too high and exceeds the temperature set in the motherboard BIOS, the motherboard will automatically cut off the power to protect related hardware. On the other hand, power management and virus software in the system can also cause this phenomenon to occur.

What to do: If the above sudden shutdown phenomenon keeps happening, first confirm whether the CPU's heat dissipation is normal. Open the case and visually check whether the fan blades are working properly, then enter the BIOS options to check the fan speed and CPU operating temperature. If you find that the problem is with the fan, perform dust removal maintenance on the fan or replace it with a fan of better quality. If you rule out hardware reasons, enter the system, overwrite and install power management from the "Kiss to Death" installation CD, and then thoroughly check for viruses. When these factors are eliminated, the cause of the fault may be the aging or damage of the power supply. This can be confirmed by replacing the power supply. If the power supply is broken, replace it with a new one. Do not continue to use it, as it will burn the hardware.