laptop cpu fan cooling fault should do?
Under normal circumstances, the CPU rarely has problems, but even if there is a failure, it is better to judge. When there is a problem with the CPU, the general situation is that it cannot be turned on, and the system does not have any response, that is, press the power switch, the chassis horn does not have any whine, and the display does not have any display. If the above phenomenon occurs, we should suspect that this phenomenon may be related to the CPU. Therefore, it is very necessary to understand some common fault phenomena and master certain maintenance skills.

Today Xiaobian introduced the CPU common faults and treatment methods.
The machine cannot start 1. there is no CPU
1. Through the analysis of fault phenomena, it may be that there is a problem with the CPU chip. Press the power key on the chassis panel to shut down first.
2. Press the row switch to cut off the power supply.
3. Remove the peripherals, case cover fixing screws and case cover successively.
4. Remove the CPU cooling fan plug.
5. Rotate the CPU radiator fixing clip 90 ° counterclockwise to remove the CPU cooling fan.
6. Pull the pull rod and fix the cover.
7. Found that the CPU is not installed
8. Install the CPU chip. This golden triangle mark corresponds to the golden triangle mark on the motherboard and plays a role in determining the direction of installing the CPU.
9. Close the pull rod
10. Install the CPUCooling fan, Rotate the CPU radiator fixing clip 90 ° clockwise to fix the radiator.
11. Install CPU cooling fan plug, chassis cover and chassis cover fixing screws successively.
12. Press the row switch, turn on the power, and press the power button on the chassis panel to start the machine.

2. CPU surface contact oxidation problem, causing the machine to fail to start
1. Through the analysis of fault phenomena, it may be that there is a problem with the CPU chip. Press the power key on the chassis panel to shut down first.
2. Press the row switch to cut off the power supply.
3. According to the above operation steps, remove the peripherals, the fixing screws of the chassis cover, the chassis cover and the plug of the CPU cooling fan successively.
4. Rotate the CPU radiator fixing clip 90 ° counterclockwise to remove the CPU cooling fan.
5. Pull the pull rod and the fixing cover successively.
6. Take out the CPU chip detection
7. After observation, it is found that the surface contacts of the CPU are oxidized. Use an eraser to wipe around the CPU.
8. Installation and processing of completed CPU chip
9. Close the pull rod
10. Install the CPU cooling fan, rotate the CPU radiator fixing clip 90 ° clockwise, and fix the radiator
11. Install the CPU cooling fan plug, chassis cover and chassis cover fixing screws according to the above operation steps.
12. Press the plug-in switch, turn on the power, and press the power button on the chassis panel to start the machine

3. CPU problem causes the machine to fail to start
Press the power button on the chassis to start the machine. Through the analysis of the failure phenomenon, it may be that there is a problem with the CPU chip. Press the power button on the chassis panel to shut down first.
6. Install a new CPU chip
7. Close the pull rod
8. Install the CPU cooling fan, rotate the CPU radiator fixing clip 90 ° clockwise, and fix the radiator
9. Install the CPU cooling fan plug, chassis cover and chassis cover fixing screws according to the above operation steps.
10. Press the plug-in switch to turn on the power, and press the power button on the chassis panel to start the machine

4. the CPU temperature is too high, the machine will restart automatically
Press the power button on the chassis to start the machine. Through the analysis of the fault phenomenon, it may be that the CPU temperature is too high, causing the computer to restart automatically. First, press the power key on the chassis panel to shut down.
1. Press the row switch to cut off the power supply
2. According to the above operation steps, remove the peripherals, the fixing screws of the chassis cover and the chassis cover successively.
3. Check whether the plug of CPU cooling fan is plugged in properly
4. Plug in the CPU cooling fan plug
5. Install the case cover and the case cover fixing screws according to the above operation steps.
6. Press the plug-in switch, turn on the power, and press the power button on the chassis panel to start the machine