Does the computer power supply have a fan, and how to connect the computer cooling fan to the power

The power supply definitely has a fan.

It is mainly used for heat dissipation of the switch tube in the power supply, and also plays a role in the heat dissipation of the chassis. If the noise is loud, you can add some oil to it or change it to a less noisy one, it is best not to change the slow speed, because the switch tube generates a lot of heat, and if the heat dissipation is not good, it is easy to cause the system to crash or automatically shut down and cannot be restarted immediately.

To put it bluntly, the power supply is an AC to DC transformer, which converts 220V AC power into 12V, 5V, and other DC power required by CPUs, graphics cards, hard disks, and various chips. In this conversion process, there is a conversion efficiency, for example, the input is 250W, but the actual output is only 200W, and the extra 50W is converted into waste heat. Important components such as rectifier bridges and switch tubes have very high currents passing through, and according to Joule's law, the heating power will be not small.

The heat generation of a mainstream dual-core CPU is 65W, so the power supply is also very hot, not much smaller than the CPU. You put your hand on the power vent while playing a game, and it's obviously hot. The capacitors and other components in the power supply have a certain temperature resistance value, and too hot will shorten the life and affect the working effect.

In addition, in Intel's brain-dead 38-degree chassis design, the power supply also undertakes the dirty work of dissipating heat from the CPU and serving as the last section of the heat dissipation air duct. The large 12cm fan is also used to extract the heat from the CPU, which is a very heavy task, and a fan with strong heat dissipation is necessary.

Of course, that's not to say you can't do it without it. Some power supplies with high conversion efficiency can be made fanless at low wattage, but they are very expensive, and they will cause heat accumulation in traditional chassis, affecting the heat dissipation of the whole machine.

There is no absolute saying which one has the most calorific value.

Some high-wattage power supplies with low efficiency, many continental power supplies are like this, 400W is only 75% efficient, and the heat generation of the power supply is as high as about 100W, which is definitely higher than the CPU. The power supply with high efficiency may only be about 50W. With the same power, the lower the efficiency, the greater the heat; With the same efficiency, the higher the power, the greater the heat.

CPU heat generation is also different, dual-core is generally around 60W, some low-power versions are 45W, quad-core, six-core is about 100W. After overclocking, there will be an improvement.

The power cord of a computer cooling fan usually has two connectors, one is a three-pin connector and one is a four-pin connector. The connection method of these two joints is slightly different.

For three-pin connectors, one of them is the positive pole, one is the negative pole, and the other is the speed detection line. When wiring, the positive pole should be connected to the "+" pin on the fan interface shed width such as SYS FAN1 or CPU Fan on the motherboard, the negative pole should be connected to the "-" pin, and the speed detection cable should be connected to the "speed" pin on the fan interface, so that the fan speed can be monitored through the motherboard.

For the four-pin connector, one of them is the positive pole, one is the negative pole, and the other two are the PWM signal line and the speed detection line. When wiring, the positive pole should be connected to the "+" pin on the SYS FAN1 or CPU fan and other fan interfaces on the motherboard, the negative pole should be connected to the "-" pin, the PWM signal cable should be connected to the "PWM" pin on the Dazhao fan interface, and the speed detection cable should be connected to the "speed" pin on the fan interface.

It should be noted that you should check the fan connector type of the motherboard before wiring, so as to avoid the computer not booting normally or the fan not working properly due to the reverse or wrong connection. In addition, the power cord of the computer cooling fan should be avoided as much as possible to avoid interference or short circuit.

It can be explained this way.

However, it is necessary to check whether it is working properly or not.

Not necessarily.

The power supply fan turns, which only means that the power supply of the fan is fine. It doesn't mean that the other power supply parts are okay.

My computer power fan always rings, nothing, if you really can't stand it, change the power supply, but when the temperature is high, there is still a big mockery!

Removing it definitely won't work!

No,,The fan of the power supply must be kept.,If you can't dissipate the hot power supply, it will break down soon.,In fact, you should go to bed at night or sleep.,Anyway, there are always so many hours of sleep a day.,Why reverse black and white.。

Of course it can't be removed.

The raison d'être of the power supply fan is that the place needs to be cooled.

The largest heat is the transformer, the transformer primary and secondary coils, the silicon steel sheet itself will heat up under the action of excitation current. This heat is inversely proportional to the purity of the silicon steel sheet, the higher the purity, the smaller the heat.

At present, the power supply used in the general market is cheap, so it is impossible to use very high-end silicon steel sheets, so if the fan is removed, overheating will burn out the transformer and power electronic components. A better power supply will often start to work if there is an overheating automatic protection circuit.

It's not a big problem in winter, but it will affect the life expectancy in summer It is estimated that your fan is a small fan with high speed and high noise Your power supply is not very good.

You can change the fan, and it's the first time I've seen a modern power supply.

Yes, if the ambient temperature is not high, it depends on the heat dissipation performance of your computer.

Change to a silent one, and remove the one that will break if the temperature is high.

It is recommended to go to the place where you bought the power supply and make a change to try it.

There is no need to change the power fan, just remove it and wipe it with some oil.

Buy a low-speed silent fan with a positive red line and a negative black or blue fan.

No, it will affect the output voltage of your power supply, the power supply temperature is too high, it will burn your power supply, the output voltage is unstable and will burn your hardware, motherboard, hard disk, memory.

Either replace it with one or install it back, unless you want your CPU to burn out too hot!

Yes, of course there is, the heat dissipation effect, it doesn't take a few dollars to change it.

1. The power supply voltage in China is 220V.

2. The power supply is a very important hardware of the computer, and the inferior power supply will damage the computer, and there will be crashes and blue screens during operation.

3. The choice of power supply should be decided according to the power consumption of the host, generally between 350W-400W.

4. The computer configuration is generally more than 300.

5. It is better to choose a first-line brand power supply.

Both have temperature control circuits, and the actual supply voltage is variable, generally 12V.