Computer case fan wiring?

Many people have encountered computer case fan wiring problems and don’t know how to connect them correctly. This situation will not only hinder the normal operation of the fan, but also affect the cooling effect of the computer. PHP editor Strawberry will explain the chassis fan wiring in detail, guide you to easily solve this problem, and help you better maintain the stable operation of your computer.

1. How to connect the computer case fan?

1. There are two types of interfaces for chassis fans, one is a 3-pin interface and the other is a 4-pin interface. Before wiring, you need to confirm the interface type of the chassis fan.

2. Find the appropriate power connector

On the computer motherboard, there are usually multiple power connectors, one of which is marked SYS_FN ​​or CH_FN. This interface is the power interface for the chassis fan.

3. Connect the power cord

Insert the power cord of the chassis fan into the SYS_FN ​​or CH_FN interface, make sure the plug is aligned with the interface, and the plug is not loose when inserted.

2. How to distribute the wind direction of the computer case fan?

The key is to distinguish whether it is air cooling or water cooling.

If you talk about tower air cooling, it is actually recommended to remove the top fan and install it in three positions at the front for air inlet and a fan at the rear for air outlet. If the heat is high, you can consider adding a fan at the back of the top.

For water cooling, the cold radiator is placed on the top, and the fan is set to inlet air from the front panel and outlet air from the rear panel and top.

3. How to control the computer case fan?

I know how to control computer fan speed.

The CPU fan speed remains unchanged, which is caused by the computer’s power management. As long as you set the CPU power management, you can adjust the CPU fan to automatically adjust the speed according to the temperature. Let’s learn about the following steps:

1.

Select System in Control Panel.

2.

Select the power option.

3.

Select High Performance → Select Change Plan Settings.

4.

Select advanced power settings.

5.

Select High Performance→Select sub-options to expand to detailed settings.

6.

The cooling methods are divided into active and passive. Active mode means that the speed is always maintained at a relatively high speed. Passive mode means that the speed is only accelerated when the heat of the CPU is high.

Expand content.

About software to control computer fan speed.

First determine whether the noise source is ufan. If so, check whether the fan is 4-pin. Currently, the 3-pin fan cannot adjust the speed. If it is 4-pin, it can be adjusted with any software. It can be adjusted automatically according to the temperature without software. tune. For 3-pin, you can consider buying a deceleration cable on Taobao. It costs about 2 yuan and is actually a resistor connected in series to reduce the voltage of ufan, so the speed will be lower! You can also consider buying a brand fan, which has good noise control and takes into account the air volume. .

4. How to install a computer case fan?

1. First, determine the "front and back" of the fan. The side blocked by four edges is the back of the chassis fan. The air outlet side faces outside the chassis.

2. This side is the front of the chassis fan, the suction side, which can also be called the "trademark side". This side is installed facing the inside of the chassis.

3. The box on the left in the picture is the chassis fan installation position at the rear of the chassis, and the right is the CPU cooling fan. Be careful not to make a mistake when installing.

4. Determine the front and back of the fan, place it at the corresponding position on the back of the chassis, and tighten the corresponding screws.

5. How to cut off the power to the computer case fan?

Most of the fans in the host chassis do not have a stop-start function. To stop the rotation, the only way is to cut off the power supply. The power supply is generally obtained from the motherboard pins or the host ATX power supply. Find the power plug of the fan and unplug it. It is best not to do any action, otherwise the possible result is to burn out the computer. The computer automatically protects itself and shuts down after a short period of work.

6. How to modify the computer case fan?

1 Prepare the purchased silicone grease, and then apply the silicone grease to the bottom and spread it evenly.

2 Then align the 4 clips of the fan into the 4 fan fixing holes on the motherboard.

3 Then push down the bottom corner of the fan. After the bottom corner of the fan has completely entered the motherboard fixing hole, install the prepared fan into it.

4 Finally, connect the power supply, turn on the power and turn on the fan to see the effect.

7. How to install the computer case fan?

The installation of computer case fans is usually divided into the following steps:

1. Determine the position of the fan: First, you need to determine the installation position of the fan, usually on the top, bottom or side of the case.

2. Open the case: Open the case and find where the fan is.

3. Clean dust: Clean the dust and debris inside the fan and case to ensure that the fan can operate normally.

4. Install the fan: Install the fan in the chassis, usually by screws or clips. If the fan is fixed with screws, you need to tighten the screws in the screw holes first, and then fix the fan to the chassis. If the fan is fixed with a clip, you need to clamp the clip on the fan and the chassis first, and then fix the other end of the clip on the chassis.

5. Connect the power supply: If you need to connect the fan to the power supply, you need to connect the fan's power cord to the power supply first, and then connect the power supply to the computer motherboard.

6. Installation completed: Clean the inside of the chassis, reassemble the chassis, connect the power supply, and test whether the fan is operating normally.

It should be noted that when installing the fan, you should operate according to the fan's instruction manual to ensure that the fan is installed and used correctly. At the same time, if you are not familiar with the installation of computer hardware, it is recommended to seek professional help.

8. Illustration of how to install a computer case fan?

1. Installation: If you see the side panel with holes, the air from the 4-jack installation will blow inward, and the back of the 2-jack installation (that is, the hardware board behind the chassis) will draw air outwards.

2. Wiring: The 4-jack plug is directly plugged into the power supply. If the 2-jack plug is also a large plug, plug it directly into the power supply. If it is a small plug, connect it to the motherboard. If you see that the pins are corresponding, you can plug them in directly without any problem. of.

3. It is easy to adjust the speed. It depends on whether your case has a fan speed regulator. If so, connect one of the plugs to the speed controller on the case to the corresponding plug on the power cord and one to the fan. Bring it with you when you buy the case. If you read the manual, you can just connect it directly without the manual and there will be no problem. The power supply is 12V 6V 3V, so there will be no electric shock.

9. What is the installation direction of the computer case fan?

The installation direction is:

The front and top panels of the chassis are for air inlet, and the rear panel is for air outflow. In this way, cold air enters the chassis through two directions, and the hot air from the hardware is quickly discharged to the nearest rear panel fan.

10. How to turn off the computer case fan light?

If your fan is equipped with an LED switch, you can find it and turn it off. If not, you can't turn it off.

Or cut the wire connected to the light. Usually the fan motor extends a wire and connects to the light next to the fan. Just cut that wire.

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