The computer fan turns and stops and can t turn it on?

Causes and solutions for CPU fans not turning.

Method 1: The CPU fan is faulty. Under normal circumstances, the CPU fan is powered by the motherboard, and the power supply interface can be found by following the fan's cable.

If you find that the cable is loose, you can try to reconnect it and plug it firmly at the interface. If the CPU fan returns to normal operation, the problem has been resolved. If the CPU fan still doesn't rotate, you can try to connect the power cable to another other same power supply interface, if the fan is running, it means that the CPU fan power supply interface is damaged, but the impact is not big (just the BIOS can't detect whether the CPU fan is running).

Method 2: CPU fan dust blocking. If the desktop is used for a long time and is not cleaned, it will cause dust deposits on the CPU fan and block the fan blades.

Remove the CPU fan and use a brush to clean it, and drip an appropriate amount of lubricating oil on the fan shaft to reduce resistance.

It may be a power failure or insufficient supply voltage.

Inspection method: If you encounter the problem of stopping the fan and turning it down, you should check the way of memory module detection Unplug one by one to test the boot status. If it can be turned on and won't restart, it's a memory problem, if not, it's not memory.

If the memory detection is okay, or can't turn on the CPU fan or still stop and turn down, check whether the host power supply is good, the detection method is the replacement method, test with other new power supplies, if it can be turned on, it will automatically restart, it is basically a power supply problem.

If it still can't be solved, consider detecting the motherboard problem, which may be the motherboard's protection.

If it can be turned on, it will automatically restart,It's likely to be a system problem.,But generally this problem is relatively rare.,Generally appear on old computers.。 You can try to see if reinstalling the system can solve it.

1. The power supply is faulty or the power supply voltage is insufficient.

2. The switch or rerest key on the host does not pop up after pressing it.

3. The CPU and CPU socket are not fully contacted.

4. The power supply circuit of the motherboard is faulty.

There are two possibilities as you say:

1. The fan stops after a turn, and it doesn't stop and stop repeatedly, 80% of it is a switch problem.

2. The fan stopped after a turn. Repeatedly stop and stop, it must be 3, the CPU and the base are not in good contact.

3. The most likely thing is that the CPU fan is broken or the fan is oiled and needs to be replaced.

The reason why the computer fan turns and stops and can't turn on is usually that the motherboard is faulty or the power supply itself is faulty. This situation is generally when the motherboard is faulty (damaged. short circuit, etc.) causes the ATX power supply to self-protect.

does not work, or the power supply itself is faulty and does not work. Recommendation: In this case, it is best to replace and test with a normal power supply.

A computer (also known as a computer) is an electronic computer used for high-speed computing, which has been called "one of the most advanced scientific and technological inventions of the 20th century". A computer consists of a hardware system and a software system that performs numerical calculations. Logical calculations and storage memory.

Its application field has expanded from the initial military scientific research application to all fields of society, leading to technological progress on a global scale. The hardware system includes: chassis (power supply.

Hard disk. Disk. Memory.

Mainboard. CPU processor. CPU fan.

Drive. Sound card. Network card.

Graphics card).Display. UPS (Uninterruptible Power Supply System**).

Keyboard. Mouse, etc. (headphones are also available.) Microphone.

Speakers. Printer. cameras, etc.).

Home computers generally have onboard sound cards on their motherboards. Network card. Some motherboards are equipped with integrated graphics.

Turn on, the CPU fan and the power supply fan turn and stop and stop.

Usually the motherboard is faulty or the power supply itself is faulty.

This situation is usually due to a faulty motherboard (damage, short circuit, etc.) that causes the ATX power supply to protect itself and not work, or the power supply itself is faulty and does not work.

Recommendation: In this case, it is best to replace and test with a normal power supply.

The fan of the computer is the computer starts to operate, it is only the heat dissipation function, can not turn on the machine or the host or display of the computer is faulty, you should take the repair shop to see, simply install the system from the new.

It should be a faulty motherboard circuit, and it is recommended to go to a street repair point to check it.

The reason why the computer fan turns and stops, and the reason why the machine can't be turned on may be: 1. The problem of the power supply. Second, the memory module problem. 3. Systematic DAO questions. Fourth, the main board problem.

Solution: 1. The problem of power supply.

Unplug the original power supply and plug it in again, boot the test to see if the fault has been solved, if not, you can only replace it with a new power supply or a good old power supply, and you can solve this failure.

Second, the memory module problem.

The way to detect is to unplug the cable to test the boot status, if it can be turned on, it will not restart, then it is a memory problem, if not, it is not a memory problem.

3. System problems.

It is most likely due to a malfunction in some aspect of the system and it is recommended that you reinstall the system.

Fourth, the main board problem.

If it still can't be solved, consider detecting the motherboard problem, which may be the motherboard's protection.

It's a mistake with your power supply, so try to change the power supply, which is also good.

It is recommended that you take it out and find someone to repair the things that should be replaced, if it really doesn't work, then buy a new one, I hope it will help you.

It is estimated that there is a problem with the power supply, or the computer is dusted.

The reasons why the computer fan turns and stops for a while and can't turn on are as follows:

1. First of all, see if it is caused by poor contact of the power supply.

2. If there is no problem with the power supply, see if the motherboard is faulty or insensitive, and restart it to solve it.

3. If there is a memory problem, unplug the memory module, wipe it clean with clean white paper, and then insert it back into the memory slot, it should be able to recover.

The reason why the computer fan turns and stops and can't turn it on:

1. If there is a problem with the power supply or the motherboard BIOS settings, first put the motherboard electric hunger sock pool down for a few minutes and then put it back to try, if the user does not know that the motherboard battery is in the ** can be referenced, the boot test fault is still enviable.

2. If there is a problem with the power supply, unplug the original power supply and plug it in again, boot the test to see if the fault has been solved, if it is not solved, you can only change it to a new power supply or a good old power supply, and you can solve this fault.

3. You can also check the memory module, the way to detect is to unplug the line to test the boot status, if it can be turned on, it will not restart, it is a memory problem, if not, it is not a memory problem.

4. System problems, it is likely to be due to a failure in some aspect of the system, it is recommended that you reinstall the system.

Precautions: 1. When using the computer, it is necessary to pay attention to the body to maintain a normal healthy sitting posture, and keep an appropriate distance from the screen, the closer to the screen, the greater the impact on the eyes, and the greater the electromagnetic radiation suffered by the human body, so it is better to be half a meter away from the screen.

2. Take a break from using the computer for about an hour, don't sit in front of the computer for most of the day, and sitting for a long time will also hurt the body.

3. You can place a pot of green plants in front of the computer desk to reduce visual fatigue, and close your eyes for a few minutes after working for a while, which will help protect your eyesight.

(1) Judging from the above description, it is likely that there is a problem with the motherboard, which will cause the fan to stop when it is turned on.

2) This is usually a problem with the boot circuit, the most likely is the coms circuit or the boot circuit in the electrolytic capacitor (solid-state capacitor) bulging, leakage phenomenon, boot up, due to insufficient power supply, resulting in the fan turn on the machine can not be turned on, when the power is on to a certain time, the capacitor is sufficient, and it can be turned on normally. Jianyi can replace the bulge on the motherboard, and the leaking electrolytic capacitor can be replaced.

Hello, I'm happy to answer for you This is most likely a problem with the motherboard, which will cause the fan to stop when it turns on the machine.

2.If there is a problem in the boot circuit, it is most likely that the electrolytic capacitor in the COMS circuit or the boot circuit is bulging, and the leakage is leaking; 3.When the power is turned on, due to the lack of power supply, the fan can not be turned on when the power is turned on, and when the power is turned on to a certain level, the power of this capacitor is sufficient, and it can be turned on normally; 4.

It is recommended to replace the bulge on the motherboard, and the leaking electrolytic capacitor can be replaced.

According to your description, it may be that the fan is lost, if it is inconvenient to go out for maintenance, you can remove the fan, open the oil seal, add lubricating oil and seal it carefully.

It may be a power failure or insufficient supply voltage. Inspection method: If you encounter the problem of stopping the fan and turning it down, you should check the way of memory module detection Unplug one by one to test the boot status.

If it can be turned on and won't restart, it's a memory problem, if not, it's not memory. If there is no problem with memory detection, but it still can't be turned on, the CPU fan still stops and spins down, check whether the host power supply is good, and the detection method.

Hello, this is a broken power supply of the computer and cannot be turned on normally. If the computer fan turns and stops, it means that the power supply of the computer is unstable, causing the fan to turn and stop.

If the memory cause has been ruled out, it is a problem with the CPU cooler.

In this case, in my experience, the memory self-test has not passed, and you can try to plug and unplug it a few more times.

Reboot repeatedly, occasionally it can turn on normally, and sometimes it will enter the BIOS interface, in this case it may be that the motherboard battery is dead, just replace the battery.

If the plug can be turned on normally after being plugged and unplugged many times, it may be that the power cord is in poor contact, and it is enough to replace the power cord with a new one.

Clean up the pluggable hardware by reseat it, and then try it.

It may be that the wire end of the motor is in poor contact, or the motor is broken, and it is better to repair it.

Computers are an indispensable part of our daily lives, but we sometimes encounter some problems, such as the computer fan turns and stops, and the computer cannot be turned on. This problem is most likely caused by damage to the computer's hardware or a problem with the software.

Hardware issues. First, let's take a look at the hardware issues. When the computer fan turns and stops, it may be because of a problem with the power supply or motherboard. If there is a problem with the power supply or motherboard, then the computer will beep or become unresponsive, and we need to repair the computer in time.

Sometimes the computer fan turns and stops because of poor heat dissipation. When we use the computer for a long time, the internal components of the computer such as the CPU and graphics card will heat up, and the function of the fan is to take the heat away, but if the fan has a problem, it will cause the computer to dissipate poorly, and then cause the computer to suddenly shut down or not turn on after a period of use.

Software issues. In addition to hardware problems, software problems are also one of the reasons why the computer fan turns and stops, or it won't turn on. When we use the computer, a large number of caches and temporary files will be generated, and if we don't clean up in time, it will cause the computer to run slowly and the fan to turn poorly.

At this time, we need to clean up the junk files on the computer in time to get back to normal.

In addition, viruses are also one of the reasons why the computer fan turns and stops and cannot be turned on. When we access an insecure **, we get caught and get infected with a virus. At this time, we can install anti-virus software to do a full scan of the computer to clean up the virus program, so that it can return to normal.

Conclusion. In general, the computer fan turns and stops and won't turn on, probably because of computer hardware damage, software problems, or virus infection. In daily use, we need to maintain good habits, clean up the junk files of the computer in time, do not access the unsafe**, install anti-virus software and other measures, so as to avoid damage and virus infection, and protect our computer.

If there is a problem with the computer, we also need to repair it in time to avoid the problem from escalating.

Summary. Hello dear, I'm honored to inquire for you, the computer fan turns and stops and can't turn on the machine, most of the reasons for this situation are that the motherboard does not detect the memory information, and repeatedly detects the state phenomenon. At this time, let's first cut off the 220V power input of the host, repeatedly press the host boot button five to ten times, and then pull out the memory on the motherboard from the motherboard slot, and then use the eraser to wipe the gold finger of the memory repeatedly, and then insert the memory into the socket of the motherboard in the original direction.

Most of these failures can generally be resolved.

Hello dear, I'm honored to inquire for you, the computer fan turns and stops and can't turn on the machine, most of the reasons for this situation are that the motherboard does not detect the memory information, and repeatedly detects the state phenomenon. At this time, let's first cut off the 220V power input of the host, repeatedly press the host boot button five to ten times, and then pull out the memory on the motherboard from the motherboard slot, and then use the eraser to wipe the gold finger of the memory repeatedly, and then insert the memory into the socket of the motherboard in the original direction. Most of these failures can generally be resolved.

If you have a discrete graphics card, you can skip this step if you don't have a discrete graphics card, for example, some office machines or Internet machines are rarely equipped with discrete graphics cards.

There is too much dust inside the machine, which causes the motherboard detection circuit to be abnormal, and then enters the cycle of repeated detection. In this case, after the power is directly cut off, use a hair dryer to clean the dust inside the machine and then install it and resume use.