When the laptop is turned on, the screen goes black and the fan spins and then stops.

The computer fan spins and stops but cannot be turned on

1. Reasons why the computer fan spins and stops but cannot be turned on when the computer is turned on: motherboard failure, power supply failure, memory failure , CPU failure.

2. The reason why the computer fan turns and stops but cannot be turned on: There is a problem with the power supply or a problem with the motherboard bios settings. First remove the motherboard battery and wait a minute before putting it back in again. If the user does not know Where can I find the motherboard battery? The power-on test fault still exists.

3. The solution to the problem that the computer cannot be turned on is as follows: There is a memory problem, unplug the memory stick and wipe it clean, then insert it back into the memory slot (it is best to use a brush to clean the dust from the slot). If the fault persists , it is most likely not a memory problem (unless the memory module is broken), you can replace the experiment with another memory.

4. The fan stops spinning: After the computer is turned on, if you find that the fan keeps spinning and then stops after a while, you can open the case and check, because the power switch may be loose, or The power cord has poor contact.

5. The reasons why the computer fan spins and stops but cannot be turned on include loose memory or gold finger oxidation, too much dust, power supply problem or motherboard bios setting problem, power supply problem, motherboard problem wait.

6. Generally speaking, it should be a motherboard or power supply problem, and sometimes memory problems may occur. This kind of fault is often encountered. The host has just been powered on, and the CPU fan can spin for a while. After that, no matter how hard I press the power button, the restart button does not respond. Turn off the power, turn it on again, and turn it on again.

The computer cannot be turned on, the fan spins and then stops

1. The computer fan spins and stops, then cannot be turned on. Reason: There is a problem with the power supply or the motherboard bios setting. First, turn on the motherboard. Remove the battery and try to put it back after a minute. If the user does not know where the motherboard battery is, refer to it. The power-on test fault still exists.

2. The computer cannot be turned on, and the fan stops after spinning. Possible reasons: Check whether the CPU and heat sink have been moved. The CPU is overheated. The motherboard detects that the CPU is overtemperature and shuts down protectively. The low speed of the CPU cooling fan will also cause the CPU to overheat. The motherboard will detect the CPU overtemperature and shut down protectively.

3. The reasons why the computer fan spins and stops but cannot be turned on include loose memory or gold finger oxidation, too much dust, power supply problem or motherboard bios setting problem, power supply problem, motherboard problem wait.

4. The solution to the problem that the computer cannot be turned on is as follows: There is a memory problem. Unplug the memory stick and wipe it clean, then insert it back into the memory slot (it is best to use a brush to clean the dust from the slot). If the fault persists , it is most likely not a memory problem (unless the memory module is broken), you can replace the experiment with another memory.

5. The fan stops spinning: After the computer is turned on, if you find that the fan keeps spinning and then stops after a while, you can open the case and check, because the power switch may be loose, or The power cord has poor contact.

The laptop shut down and water got in. I didn’t pay attention when I turned it on. The fan sounded for a while and then stopped.

1. There must be a short circuit or open circuit on the motherboard due to water corrosion. It is recommended that you find a technician. A good repairman can help you with repairs, and 90% of them can be repaired. Do not turn on the phone if water or liquid enters it. Unplug the power source and battery as soon as possible, and then find a way to clean up the water stains.

2,. Try booting, after checking the computer brand, press F8, Enter, Enter, enter safe mode, Advanced Startup Options, Last Known Good Configuration, Enter, Enter, press to try! 2. Enter safe mode, start normally, press Enter, go to the desktop, and use Baidu Anti-Virus to completely kill the virus! 3.

3. After the notebook is flooded, it is recommended to shut down the computer immediately, remove the external power supply and built-in battery, save the complete power-off state, and contact the HP Gold Service Center as soon as possible for further inspection and maintenance. A motherboard failure does not necessarily mean that there is no response at all. The current laptop phenomenon may also be a motherboard problem, which requires detailed inspection and confirmation.

4. If your laptop makes a sizzling noise, it may be caused by water damaging the fan or other components. You can try the following solutions: Place your notebook in a dry place for at least 24 hours to make sure it is completely dry.

The laptop cannot be turned on, and the fan turns off after turning on it

The computer fan turns on and off, and cannot be turned on. Reason: There is a problem with the power supply or the motherboard bios settings. First remove the motherboard battery. Put it back after a few minutes and try again. If the user doesn't know where the motherboard battery is, you can refer to it. The power-on test fault still exists.

If the notebook cannot be turned on and the fan turns off after turning on it, it may be due to a hardware failure within the computer. In this case, it is recommended that you send your computer to a professional repair shop for repair as soon as possible. Here are some possible causes: The CPU inside your computer may have overheated, causing the fan to not work properly.

The solution to the problem that the computer cannot be turned on is as follows: There is a memory problem. Unplug the memory stick and wipe it clean, then insert it back into the memory slot (it is best to use a brush to clean the dust from the slot). If the fault persists, it is very likely that the computer will not turn on. It may not be a memory problem (unless the memory module is broken), and you can replace the experiment with another memory.

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