How do I remove the power supply fan? Computer power supply Fan Replacement tutorial

Power is like the heart of a computer, which plays a key role in stabilizing the power supply. As long as the power supply plug in, there will be work, even if not on, the internal standby power is still to work, so the computer power is also more prone to faulty hardware, especially some inferior power supply. Small series has been engaged in a year of power maintenance experience, many of which are due to damage to the cooling fan, resulting in bad power supply, resulting in a variety of problems, more common is the integration of filter capacitor slurry, 5VSB standby module burned. Today, the Pepsi Net is mainly for everyone to share the power supply fan how to change, which is the main difficulty is the fan disassembly and installation.

Computer power is usually a one-year warranty, and the general brand of power supply fan problems, the basic is a year or two after the use of similar failures, returns have been impossible. In addition, the power supply for the fan needs to be mailed to manufacturers or find dealers to solve, the general maintenance needs about a week or so, or even longer, so many friends, also do not want to wait one weeks can not be online, and the preferred method is to change their own power supply fan.

The power supply fan replacement is not difficult, the most important thing is to understand how the power supply fan demolition, understand the power supply fan size and interface type. The following is a detailed power-replacement tutorial.

　　First, how to remove the Power fan?

Replace the power supply you must first understand these issues: fan size, fan interface, these two points can be removed by the power supply, through the internal view.

Computer power disassembly is very simple, as long as the use of Phillips screwdriver, the first power supply from the chassis removed, the demolition, you need to pay attention to power, and to the power supply and hardware between the connection is all first disconnected.

After removing the power, remove the four captive screws from the power supply surface and then easily open the power supply cover, as shown in the following figure.

It should be noted that most of the current power supply fan design for the blow or side blowing mode, if it is on the blow, the fan is fixed in the power supply cover, when the demolition, it is important to note that the fan also has a power cord connected with the internal PCB, demolition, should pay attention to open the lid carefully, need to disconnect the power cord, and then open the upper cover, As shown in the following figure.

Note that the fan power connector is disconnected

Note: Power supply four screws in a surface affixed with the date of the fragile paste, open power means that the power will be lost warranty service, so before the power is removed, the first to understand whether the power has been over the warranty period, if the warranty, whether you want to repair through the after-sale maintenance.

　　remove the power on the lid, you can see the internal cooling fan, the general above will have size callout, general ATX Switching power supply, its fans are 12cm. interface, the current power supply fan interface is mostly 2Pin or 3Pin .

After understanding the power supply fan size and interface, we can go to the computer accessories stores or online shopping malls (such as Taobao) and so on to buy meet the requirements of the cooling fan, the power supply fan is generally relatively cheap, the majority is about 10-20 yuan, buy fans recommend to buy Word-of-mouth and brand a little better products to ensure quality. When selecting a fan, you need to see if the size and interface are compatible with the original power source used in your computer.

　　Second, power supply fan Replacement tutorial

After you buy the power supply fan back, you can start to change the heatsink, the following steps are followed.

1, the power supply fan cable from the PCB power supply board socket unplug, here need a little harder;

2. Use a Phillips screwdriver to remove the power supply fan fixing screws and remove the damaged fan;

3, the new power supply fan, fixed in the power supply, and then install the fixed screws, the power cord into the power supply inside the PCB board of the power outlet, pay attention not to insert the reverse.

Power supply fan Power Interface is incompatible can also be modified by itself (note positive and negative)

Next, don't rush to load the power into the chassis and test the power supply fan to see if it will turn.

1, plug the power into the alternating current;

2, and then use a small wire, the power supply 24Pin interface with the Green Line interface with the black corresponding interface short circuit connection (equivalent to computer boot operation), and then the power supply fan rotation, then the fan replacement is successful, if the fan does not turn, the first disconnect AC power, and then check the fan power interface is not plugged in the back, Generally as long as the power supply is not bad, the fan is not bad, the normal black line and green wire port short-circuit, the power supply is equivalent to normal work, the fan will rotate normally.

Detect if the power supply fan is normal after installing the fan

After the power supply fan is normal, you can reinstall the power supply to the chassis, and then connect the other hardware, and then the computer can be used normally.

The above is the computer power supply fan replacement whole process, the operation is not difficult. However, there will also be some details of computer assembly, such as the connection of various hardware power lines, so this article is only suitable for the assembly of computers have a certain understanding of users.