My computer computer can t start, the fan turns and stops, what is the reason?

The solution to turn on the computer and the fan stops when it turns: 1. Pull out the memory module.

Use a dry cloth or eraser to wipe the gold finger of the memory.

Part; 2. Restore the BIOS settings to factory settings.

3. Clean up the dust of the computer; 4. Take the computer host to the computer store for testing.

The computer stops and turns again when the computer is turned on, and it can't be turned on repeatedly.

Fault analysis: The computer turns on and stops and then turns again, which is due to the computer hardware.

Caused by poor contact, short circuit of the motherboard or subsequent hardware, power failure, etc. The cause of these problems is not a good environment, humidity, and not turning on the machine for a long time.

1. The memory is loose or the gold finger is oxidized.

This is the most likely, and many users solve it this way. First of all, we will remove the memory, it is very simple to remove, press the buckles on both sides of the memory slot (there are also single-sided buckles) to pull out the memory module, we had better use a dry cloth or eraser to wipe the memory gold finger part, so as to avoid the problem caused by the oxidation of the gold finger, reinsert the memory into the memory slot, and try to boot it. If it doesn't work, you can try to change the slot and insert the memory, and in the case of multiple memory, keep one memory first and test it alternately.

If not, users with a discrete graphics card can also try to reseat the discrete graphics card.

Memory is re-inserted.

2. BIOS error.

Motherboard BIOS error failure can also cause this problem, we can try to factory reset the BIOS settings, we will have the motherboard on the coin cell battery.

Remove it, leave it for a few minutes, and then install the coin cell battery in place to restore the initial BIOS value. It is also very simple to remove the button battery, pull the buckle outward, and the button battery can be automatically ejected, and you can remove it directly.

BIOS settings are factory reset.

3. Caused by too much dust.

Dust is the biggest killer of hardware, cleaning up dust for the computer is a very necessary thing for us to maintain the computer in our daily life, dust accumulation is too much, increasing the temperature of the hardware, will affect the life of the hardware, many times, hardware damage is caused by too much dust. To clean up the dust, we can use a brush, a high-powered hair dryer, to remove the dust.

Clean up the dust. 4. Motherboard and power failure.

If the above method is tested or does not work, then it may be caused by the failure of the power supply or motherboard, this situation for the general population, there is no suitable hardware to replace the test, only to bring the computer host to the computer store for testing, let the store first replace a power supply to try, rule out whether it is a power supply problem, if the power supply is still the problem, and finally replace the motherboard to try. If the hardware is within the warranty scope, you can find after-sales, if not, you have to pay to replace the hardware out of your own pocket.

The above is the detailed content of why the computer turns on and the fan stops when it turns

My computer host can't start, the fan turned and stopped, what is the reason, such a situation, it may be a system problem, or it may be caused by too much dust in the fan in the case, clean up the dust first, and reinstall the system to solve it completely.

This is a hardware failure, it is recommended to check the failure of the motherboard and power supply, if it doesn't work, go to the after-sales service.

If the fan stops after one turn, the problem of the motherboard is relatively large, and it is recommended to replace the motherboard to check it.

There are many reasons but it's certainly not the fault of the fan.,Motherboard or power failure is more likely.,What you can do is to plug and unplug the memory graphics card and the like.,If you don't know in**, don't toss it and find a door-tos-door repair.。

It is recommended that you repair the computer, it may be that there is a problem with the fan or the motherboard.

I hope mine can help you, hope, thank you.

If you have this problem, it may be that the memory module is in poor contact, there may be a problem with the system, and there may be a problem with the power supply. Find a master to check it thoroughly.

In this case, there should be a problem with the power supply, you can replace a power supply to try.

There may be a problem with the power supply or fan, which can be checked with an alternative method or a multimeter to solve the problem.

It is estimated that the power supply is broken, so try a new one.

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.

The computer won't turn on, and the fan stops when it turns

Check whether the CPU and heatsink have been moved, the CPU is overheated, and the motherboard detects that the CPU is over-temperature and the CPU is shut down protectively.

The low speed of the CPU cooling fan will also overheat the CPU, and the motherboard will detect the CPU overtemperature and shut down the CPU protectively.

Check whether the power connector is loose, whether the fast fuse in the power supply is blown or the power cord is broken.

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.

I think it's very likely that the power supply is faulty, and there is a problem with the power supply, so the motherboard is only powered on after it is powered on, and then the fan does not rotate, so I think the biggest possibility is that there is a problem with the power supply.

If you encounter the problem that the fan stops and turns down, you should check the way the memory module is detected, unplug them one by one, and 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. 2.

If the memory detection is okay, it still can't be turned on The CPU fan still stops and turns down, then 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 problem with the power supply, no doubt. 3.If it still can't be solved, consider detecting the motherboard problem, which may be the motherboard's protection.

4.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.

Hello friends, judging from your description, it should be that there is a problem with the power supply, because the computer has been turned on, and the fan of the power supply has been turning, so the preliminary judgment is that there is a problem with the power supply, if you agree with my point of view, thank you.

The computer host cannot start, and the fan stops after a short period of operation, which is most likely caused by a hardware failure and fails the POST, while the fan runs immediately after powering on, so it will rotate for a short time.

There are many reasons, starting from the heat dissipation of the CPU, memory, graphics card, and motherboard chips may encounter faults, just check them one by one.

Hello! Judging from your description, it is a computer hardware failure, and the motherboard is more likely to fail, so it is recommended to send it for repair!

In this case, it may be that the CPU power supply part of the motherboard is damaged, or the CPU is damaged, and in rare cases, it may be a fault of the switching power supply. You can find a motherboard diagnostic card or go to a professional repair center to check and repair. Do not disassemble the machine by yourself, so as not to cause secondary damage.

Hello, there are many reasons for this kind of computer failure you mentioned, for example, it may be that the memory module is loose, or other ** connectors are loose, which will be caused.

This situation is usually caused by hardware problems, such as motherboards, memory, graphics cards, CPUs and power supplies. If there are conditions, it will be clear that they will be eliminated one by one.

Unplug the memory module first and wipe it, and then install it to see, if it still doesn't work, then unplug all that can be unplugged, try again, if it doesn't work, change the power supply, and finally change the motherboard.

Is the power fan down?

If the power supply fan stops, it should be that the power supply has been short-circuited and protected.

If the power supply fan is normal and the CPU fan does not rotate, it should be a problem with the motherboard.

Maintenance personnel also need to disassemble the machine for detection, replace the power supply, wipe the memory gold finger and other operations to analyze the fault.

The computer host starts up and the fan stops when it turns, and the explanation is as follows

Both the CPU fan and the power supply fan stopped after only one turn, and it was obvious that there was a problem with the power supply. 1. If there is a problem with the power supply or the motherboard BIOS settings, first put the motherboard battery down after 2 minutes and then put it back to try, if the user does not know that the motherboard battery is in **, you can refer to it, and the boot test fault still exists. 2. If you suspect that 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 there is no response when you press the power button, it may be that the power supply is not connected well or the power supply is bad, or it may be that the power button on the chassis panel is not in good contact or the motherboard is bad. Pressing the power button has a response, which can prove that the power supply is basically normal, and the problem is in other parts. There are many reasons for this problem, and we have to eliminate them one by one by substitution.

Start with the easy ones.

It is recommended that you try to change the power battery first, if it still doesn't work, it is the machine itself.

Loose parts or chip virtual soldering damage, common reasons: loose memory or memory itself has problems, reinsert the memory or change the memory to try; The power supply chip of the motherboard is soldered or aged, the screen cable is loose or the motherboard short-circuits the power supply circuit of the screen; Graphics card, south bridge, north bridge BGA packaging chip virtual soldering or damage, generally there are more virtual soldering, just add soldering.

In the case of making sure that there is no problem with the display, if the boot is not even displayed in English, it can be sure that there is a problem with the hardware, open the cover to see if the CPU fan and the graphics card fan are rotating, if you unplug the memory normally and clean it with alcohol, clean the memory slot with a brush, if the fault still exists, unplug the graphics card and clean it, if the fan will turn the power supply of the whole machine, there should be no big problem, the main thing is that it is in the motherboard memory and graphics card, the CPU is generally rarely broken, and it has been cleaned, Not yet, the possibility of hardware damage is relatively large, if there is a condition, find a machine to change someone else's graphics card to try, and then memory, change the graphics card Memory failure is the same, and the fault can only be on the motherboard,

Discharge the BIOS battery (restore the BIOS factory defaults) It is recommended to plug and unplug the graphics card and memory, clean it up, and polish the gold finger of the graphics card and memory (if you can't solve it, you can repair it).

Troubleshooting method for computer not turning on:

Step 1: First of all, check whether the external wiring of the computer is connected, and plug in each cable again to see if the fault is eliminated.

Step 2: If the fault persists, then open the main chassis to check whether there is any excess metal in the chassis, or a short circuit caused by the deformation of the motherboard, and smell whether there is a burning paste in the chassis, whether there are burned chips on the motherboard, and whether the capacitors around the CPU are damaged.

Step 3: If not, then clean the dust off the motherboard and check if the computer is in good condition.

Step 4: If the fault persists, unplug the reset cable on the motherboard and connect it with other switches and indicator lights, and then use the change cone short-circuit switch to see if it can turn on.

Step 5: If you can't turn on the computer, then use the minimum system method, unplug the data cable of the hard disk, floppy drive, and optical drive, and then check whether the computer can be turned on. Then connect the above devices to the computer one by one, when connecting a certain device, the fault will recur, indicating that the fault is caused by this device, and finally focus on checking this device.

Step 6: If the fault persists, the fault may be caused by devices such as memory, graphics card, CPU, motherboard, etc. Then, use the plug-in method, swap method and other methods to check whether the memory, graphics card, CPU and other devices are normal, and replace the damaged devices if there are damaged devices.

Step 7: If the memory, graphics card, CPU and other devices are normal, then discharge the BIOS, use the isolation method, place the motherboard outside the chassis, connect the memory, graphics card, CPU, etc. for testing, if the computer can be displayed, then install the motherboard into the chassis for testing until the cause of the fault is found. If the fault persists, you need to return the motherboard to the manufacturer for repair.

Step 8: When the computer is turned on without display but there is an alarm sound, when the computer is booted up, the system BIOS starts to POST (power-on self-test), when it detects a fatal error in a device in the computer, it will control the speaker to send out a sound to report the error. Therefore, there may be a fault that the power is turned on without displaying an alarm sound.

If the computer is turned on and there is no alarm sound, the fault can be checked according to the meaning of the BIOS alarm sound to check the faulty device to eliminate the fault.