Computer CPU fan 。。。。。。。。。。

First of all, you have to determine whether the CPU fan is broken, you see that the following your fan is a few wires, generally three, one is a signal line and the other two are positive and negative lines, if four have an extra PWM signal line, you first use the power supply ** device to test whether the following fan is running normally, and then use an oscilloscope to check whether the following signal line has a square wave signal output, four wires, you don't have a professional instrument to detect, so it is recommended to buy a pair of the same specification to try it, See if it changes back to normal, if not, it means that there is a problem with the motherboard control circuit, take it to repair.

Check first to see if it is caused by overheating of the machine's CPU, and if so, please replace the fan

If not, it's a power issue

It is very likely that the power supply voltage of your home is unstable! ·

The fan rotates heavily, overheating protection. Replace!

You take the motherboard, along with the CPU and the fan, to the computer company to check it, because the fan is fine with you, then it may be a problem with the motherboard.

The CPU fan doesn't work, and it's easy to burn the motherboard, so you'd better not use it anymore! Take it to the manufacturer and let them see what's wrong with the motherboard, right? My computer broke the CPU fan half a month ago, and then burned the motherboard.

It was repaired after returning to the factory! My home is Huashuo motherboard, AMD3000+, yours is AMD5000+, it should be bought this year, it is still under warranty, and finally let them check the motherboard in detail!

Your problem has to be solved by the merchant. We've talked about it, but a fan costs a few dozen dollars. You might as well buy one and try itThe original one is not very good in the first place.

Is your fan broken?

Isn't your fan stuck with anything?

Or is the voltage in your home unstable?

Pay more attention when you install the fan and smooth out the wires.

That's a fan problem! You go and change to a silent fan, and make sure there is no sound! You can change the power supply fan, the CPU fan.

You can also just change the one with noise, but it will sound after a long time, generally speaking, the original fan will ring after 1 or 2 years! Remember to dust them all! I changed the computer to a CPU mute fan last year for 60 yuan!

The fan is not of good quality.

It may be that there is a lack of oil.

It is also possible that the fan axis is off-center.

This needs to be polished yourself! The noise of the computer mainly comes from the fan, and many materials have introduced the method of filling the fan with oil to reduce the noise, but the author believes that the noise of the fan is not necessarily due to the lack of oil in the bearing.

The "eccentricity" of the fan's blades is the main cause of the noise. High-quality fans, the center of gravity of the fan blades on the axis, the operation is very stable, the noise is very small, and the inferior fan, there is often a certain deviation, the center of gravity of the fan blade does not cause "eccentricity" on the axis, such a fan rotates, it is equivalent to an oscillator (the oscillator is to add an eccentric wheel on the motor shaft), with the use of time, the fan bearing gradually wears, or the fan heat sink is not firmly installed, loose, etc., will make the vibration aggravated and the noise becomes larger. The simplest solution to this type of failure is to install the fan as firmly as possible so that it cannot vibrate, of course, this method does not solve the substantive problem, because the fan blades are still "eccentric"; Another method is to inject oil into the fan bearing to cushion the vibration and reduce the noise; There is another way to solve the problem at its root:

Remove the fan blade, use a thin wire to hang the fan blade through the small hole in the center of the fan blade, if one end falls, it means that this end is heavier, you can grind a few times on the grinding wheel, so after several times, when the fan blade is hoisted with a thin wire, if the fan blade can be static in the horizontal position, it means that the transformation is successful. A few problems with oiling the fan:1

Sewing machine oil or engine oil, the author recommends using four-stroke motorcycle oil, because sewing machine oil is very thin, fluidity and volatility are strong, it will not take long after oil injection, and the fan will be "old disease**", and the cushioning effect of sewing engine oil on vibration is also very small, for weakening noise, the effect is not big, and the use of engine oil just avoids the above two shortcomings. 2.After the sealing problem of oil injection, a label paper is attached to the oil injection part of the fan, and after the label paper is removed and oiled, the label paper can generally not be used anymore, what to replace it?

The author chose four or five layers of scotch tape. Find a roll of scotch tape, use a knife to cut horizontally, cut through about four or five layers, and then peel off these four or five layers of scotch tape together and you can use it. Be careful not to use just one layer of tape, because a layer of tape is prone to vibration and noise when the fan is rotating, and it may be damaged and cause oil splashing.

Another advantage of using scotch tape instead of label paper is whether the fan is short of oil, which can be seen at a glance and does not need to be disassembled.

What you said will not turn after a while, it may be a small one.

The big load is too much, and the small ones start to turn.

One is for the cup and the other is for the motherboard.

You may be talking about cooling the graphics card.

But I don't know if you have a fan on your graphics card.

A fan is not expensive, ranging from 80 to several hundred.

The fan problem of laptops is very tricky, after changing the hard disk, the power will increase, the heat will increase, and the fan speed will increase.

Laptops, as long as your working environment is not in a dusty place, there is no need to clean the dust, and it has only been used for a year.

In this case, it is almost impossible to change the fan, and due to the space constraints of the laptop, there are very few laptop fans on the market.

I don't know if the landlord will find that the computer is hotter than before when he uses the computer. If it's hotter than before, it can only be solved from peripherals, such as adding a heat sink, which should be a little better.

It is normal for a fan to be around 3000 rpm.

If you feel that the sound is too loud, you can take it to the official designated maintenance point to clean it up, and get it for dozens of dollars, this notebook is a concealed button disassembly.

It is not recommended to disassemble the machine by yourself.