When we buy a notebook, we should also consider the heat dissipation performance of the CPU fan of the notebook when considering the notebook configuration, so that the life of the notebook will be longer. Here is a brief introduction to the cooling failure of the laptop CPU fan and its handling methods. Welcome to read!
The cooling fault of laptop CPU fan and its treatment method 1, the CPU fan stopped running and caused the crash.
Fault phenomenon: the CPU fan of notebook computer sometimes stops running, which causes the CPU temperature to be too high and crash.
Troubleshooting: At present, mobile CPU basically has temperature protection function. When the temperature of CPU exceeds a certain limit, it will crash or restart, thus protecting CPU. If there is a problem with the CPU fan, it should be repaired as soon as possible to eliminate the fault and ensure the normal work of the fan.
2. The CPU fan is not installed properly, resulting in frequent crashes.
Trouble: An IBM T42 notebook computer will slow down as long as it is turned on for a period of time, and it will crash and restart automatically for no reason.
Troubleshooting: Due to the loud noise of the CPU fan, the CPU fan of this notebook computer has been disassembled and cleaned before. Therefore, it is judged that the problem may be the CPU fan, which leads to the problem that the CPU temperature is too high. Take apart the laptop again and check it. Sure enough, the screw of T42 original CPU fan was not installed in place, and the fault did not appear again after reinstallation. Fault comments: If the crash and restart are not caused by viruses and improper use, it may be caused by the high temperature of the CPU. If the cooling effect of the CPU cooling fan of notebook computer is not good, resulting in high working temperature, it may lead to frequent crashes.
3. The CPU cooling air duct is blocked, resulting in shutdown.
Fault phenomenon: A Lenovo Rising Sun 420A notebook computer suddenly stopped after being turned on for more than an hour, then turned on again, and then stopped.
Troubleshooting: Since it can be turned on, there is nothing wrong with the hardware system. It may be because the CPU temperature is too high to automatically turn on the protection function and stop the machine. There was nothing wrong with the CPU fan when the laptop was taken apart for inspection. When removing the cooling air duct, it was found that the air duct was blocked by some flocculants. After cleaning, the notebook computer is restored and the fault is solved.
4. The CPU fan of the notebook computer is turned on and off.
Fault phenomenon: Toshiba M2 notebook computer, after a period of use, found that the CPU fan turns from time to time, but it feels that the body temperature has been very high.
Troubleshooting: The fan of notebook computer is designed with temperature control. Generally, the CPU will rotate when the temperature is higher than 70℃. A high fuselage temperature does not mean that the internal temperature is really high.
5. The notebook CPU fan keeps turning.
Fault phenomenon: When the notebook computer is running general programs (such as Word and Web browsing), the fan rotates every 5 minutes, lasting for 5 ~ 6 minutes. If the running program is too large (such as 3DS MAX), it will speed up the rotation and make a lot of noise.
Troubleshooting: This is normal. The fan of notebook computer is designed with temperature control, and it will not rotate until it reaches a certain temperature. Some laptops with AMD processors consume relatively large amounts of power. Therefore, the frequency of turning on the fan will be higher than other models, and the rotation will be more normal when playing large games.
6. The laptop's CPU fan won't turn.
Fault phenomenon: A notebook computer found that the CPU fan did not turn when it was running until the backplane temperature was very high. It was suspected that the CPU fan was broken. Later, it was found that the computer would turn when it started self-checking, indicating that there was no problem with the fan brake. But I don't understand why the backboard still doesn't turn when the temperature is very high.
Troubleshooting: CPU fan mainly dissipates heat for CPU, and the CPU will rotate to dissipate heat when the temperature is higher than 70℃. In addition, the problem of high backplane temperature is not necessarily caused by CPU, and the heat of hard disk, memory, graphics card and motherboard may gather here, so the high backplane temperature is bound to be related to whether the CPU fan rotates. In addition, it is recommended to run large-scale games for testing at the same time. If the CPU fan does not rotate after a period of time, there may be something wrong with the CPU fan.
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