The computer display will automatically turn off and change to a fan

This is the standby power saving mode, which will happen if you don't operate for a long time.

I don't think so, for a number of reasons.

The fan is not installed properly. Have you ever applied silicone grease? Open Master Lu to check the CPU temperature, it must have soared unlimitedly.

If the temperature is normal, it belongs to the motherboard boot control, and the accepted current is unstable. There are 2 situations that lead to 1Your chassis power failure, 2Your motherboard is faulty.

The workaround may be a bit difficult for you. You have to find a case power supply that is fine, change it, and try it if it works. It's the problem of the power supply, and the other side is the motherboard capacitor, so it's better to take it out and let the repair shop check it.

I can fix the lack of materials myself, please give me the answer. Thank you.

The automatic shutdown of the computer is mostly due to poor CPU heat dissipation, resulting in automatic protection and power off and shutdown.

In the past maintenance experience, this situation is generally caused by the following reasons:

When changing the fan, the thermal conductive silicone was not applied or applied unevenly.

When changing the fan, the adhesive tape or plastic box at the bottom of the fan was not removed.

The fan power connector is not connected to the CPU fan.

The fan speed is insufficient, resulting in insufficient heat dissipation.

The fan is not installed properly or the base is broken.

Please check one by one to troubleshoot.

If the fan doesn't turn off automatically before it is replaced, you should still suspect that the fan is not installed. The main thing is to see whether the silicone grease on the CPU is evenly coated, whether the silicone grease has solidified and dried, and whether the fan speed is normal and whether the air volume is large enough. You can go into the motherboard BIOS and look at the CPU temperature, if it is above 70 all the time, it will easily cause the shutdown.

The fan may not be installed properly, or there may be a problem with the fan. When the temperature is high, it will automatically shut down to protect the hardware from burning out, and it is still in a protective state before the temperature is completely lowered, so it can't be turned on. You need to wait for the temperature to drop to a safe value before you can turn it on.

You should be more detailed, you are changing the fan, whether it is the CPU or the graphics card. If it's a CPU, then it's your fan that isn't in place, the silicone isn't coated well, and it's possible that your fan motherboard doesn't recognize it, try a different fan, there should be a hint. If it is a graphics card, then the fan is not good, the speed is not enough, and it does not play a role in heat dissipation.

The problem may be that the thermal grease on the CPU has not been cleaned up when replacing the fan, because the silicone grease has become hard, and the newly installed heat sink cannot be in good contact with the CPU, resulting in the CPU overheating protection shutdown, and it can only be turned on again after a period of natural cooling. You can remove the fan first, carefully clean the residual silicone grease on the surface of the CPU, because the silicone grease on the original fan has been destroyed, you need to apply new thermal grease. Pay attention to the installation method.

Open the case and turn it on to see if the fan is working properly.

It's not that your silicone is not applied correctly.

Try plugging and unplugging the memory module.

Is your fan connected correctly?

If the connection is incorrect, the motherboard will monitor the rotation of the fan, and if it finds that the fan is not rotating normally, it will generally give an alarm, or shut down directly.

And you can open the chassis to see, after the boot of the ** condition.

When you installed the fan, did you encounter any other equipment, causing an abnormality?

Does it mean that you can enter the system or not?

The automatic shutdown of the computer is mainly caused by the following causes of the collapse of the original circle:

Poor heat dissipation. Due to the influence of weather temperature or the insufficient number of revolutions of the CPU fan, the system overheats, which will lead to the automatic shutdown of the computer, it is recommended to check whether the system temperature is normal.

Memory reasons. When the contact between the memory and the motherboard socket is loose, it may also cause the computer to shut down automatically, it is recommended to check whether the memory is plugged into the motherboard.

Power issues. The lack of power supply is also an important factor in causing the computer to automatically shut down, but from this configuration, the possibility of this problem is very small.

Software due to ingenuity. Computer shutdowns caused by viruses or Trojan horses also abound, especially the recent epidemic of shockwaves, which can cause the system to reboot and shut down. If you are using Windows

2000 or Windows

XP system, it is recommended that you use antivirus software to kill the virus in time to hit the patch of the shock wave on the filial piety circle, and the general problem can be solved.

If it is particularly hot, it is the CPU thermal conductive silicone reeds that are dry, pay attention not to wipe too much, that will cause depression and heat. Then take a look at whether your south and north bridges are too hot, if it's too hot, find a small heat sink, stick it to the gods, and then add a small fan. Most of the summer restarts are caused by overheating of the chip!

Open the side panel of the case to see if the fan is rotating, if it does, then whether you have poor contact with the aluminum sheet, and whether the aluminum sheet is overheated by touching it with your hands....

The CPU temperature is high.

Don't blame the whole cause on the fan.

It's possible that you're on the computer.

There's something wrong with the system.

Poor performance. It needs to be optimized.

Wait. For this question, you should first check whether the temperature of other hardware is high.

If normal. It's best to try to reinstall the system.

This can't just start from the fan.,The processing is also hands-on.,But what you need is not to change one but to install one.,I think this method should be very practical.,Buy a good-looking fan.,Cut a hole on the side panel of the case with the same as the fan.,Fix it with a few small screws.,And then connect the new fan.,It's best to be careful.,It's dangerous to be fooled.。 In this way, the heat dissipation effect will be increased. The temperature is down, and the game is happy.

Now many motherboards have temperature monitoring, once the temperature exceeds the temperature of the circuit board can withstand the infiltration of the body, it will automatically shut down for self-protection, go to the official ** of the graphics card to see the power supply demand, the power supply is the most congregated or good to change a good point.

Mine is the same problem, mine is 08 years to get a computer, maybe the machine is old, plus the weather is hot now, play the game and turn off, can only be blown by an electric fan, fainted

Change to a fast-revving fan, and tell the merchant your CPU frequency when you buy it; Then buy a bottle of "heat dissipation glue (white kind)" between the radiator and the CPU, about 1 2 yuan a bottle!

A better fan is king. Remember to apply "heat dissipation glue" between the CPU and its heat sink!! The problem will definitely be solved!

With a cooling fan installed in the case, the CPU heats up instantly, and your computer is a little old.

There are several common causes of this situation:

1. The advanced power management support of the computer is not enabled.

If this is the case, then click "Start" "Settings" "Mastery Panel" "Power Options" "High Power Management", and then check "Enable advanced power management support".

2. There is an error in the advanced power management settings in the BIOS.

There are also options that can be mistakenly modified in the BIOS related to advanced power management (in the BIOS is Advanced Power Management), if you have a little bit of knowledge about the BIOS settings, then please enter the BIOS, if you don't know how to enter, then when the computer starts, press and hold the computer Delete key, if the notebook may be a brand machine, F8, F9, F10, F11, F12 these keys. Let's try it sequentially. Once there, select the Advanced Power Management option.

Try changing the relevant power management options in the BIOS. If the first term is enable, then change it to disableBut if you are not familiar with the BIOS at all, then go directly to the BIOS and simply select the "Load Default Setup" option, that is, restore the BIOS to the factory default settings.

3. APM NT Legacy Node is not enabled.

Under normal circumstances, the APM NT Legacy Node is not turned on, which can cause a shutdown, but it cannot automatically cut off the power supply. Go to the Device Manager, click "View Hidden Devices" in the menu bar, and all the hidden devices in the system will be displayed. In the Device List box, check whether the APM NT Legacy Node option is available.

If your computer supports this feature, this option will appear, double-click it, and in the pop-up properties dialog box, click the "Enable Device" button.

4. Shutdown group strategy.

Usually this option is rarely thought of, but it is also a reason for the minimability, but it is still worth trying, click "start" "run" and then type in", come up with an interface, and then select the left computer management management template system, "windows system is closed after the system is not closed, the system power supply is not closed" If this item is not configured or enabled, then change it to disabled.

5. The driving situation.

This situation is inevitably a software situation, first click on my computer right-click and select "Management" "Device Manager" click on the computer, see if there is an exclamation mark or something else, and if it is an MPD Uniproccer PC, maybe a standard PC, then it is best to redo the system.

6. Hardware conditions.

If you can try to change the power supply, if the power supply is still changed, it is the situation of the motherboard, it is possible that the power management module is broken, take it to the place where the board is repaired and repair.

After the desktop computer is shut down, the host fan is still turning, in this case, you can try the following solutions:

1. If the power support is not enabled, click "Start Settings Control Panel Power Options High Energy Power Management" and check "Enable Advanced Power Management Support".

2. If the BIOS settings are incorrect, it may be that the BIOS has modified the options about power management in the BIOS by mistake, if you are familiar with the BIOS settings, please enter the BIOS and try to modify the options about power management in the BIOS. If you are not familiar with the BIOS, then simply select the "Load Default Setup" option and restore the BIOS to the default settings at the factory.