After watching the master! Teach you to judge the computer failure - the last patch

We teach you to judge the fault part. Now it is basically finished. Most of the remaining parts of the hardware are not parts that often cause more problems. However, this does not mean that they will not cause problems. Some of the questions are still quite annoying.

 

Phenomenon: Unusual vibrations, squeaks, shaking, etc.

Cause: Enclosure resonance

The chassis itself is a product with almost no electronic performance. Most of its price sources are the material price of the chassis structure, design fees, and thermal design.


This time there is a problem that makes everyone feel more head-scratching: sometimes all the parts of the chassis are installed, the sound will be heard when used, but if you listen carefully, it is not the noise of the fan or the hard disk. This majority is caused by the resonance of the chassis.

Resonance in physics is a cumbersome phenomenon for materials. It may reduce the strength of the material, while the squeaking sound makes it difficult for people to listen to. The reason why resonance occurs is often the vibration of the object and the frequency of the chassis itself. This source of vibration is usually the source of all the vibration-producing objects in the chassis, such as hard disks, fans, optical drives, and other parts that have a motor motor to influence it.

Moreover, these conditions and the thickness of the chassis itself are not much related. A thick box will have a relatively large resonance phenomenon. This is related to the quality of the chassis itself. The price level is not very relevant.

 

Solution: If you have heard the ancient story of the exorcism of the clock, you will know some simple processing methods: as long as you can change the natural frequency of the object, you can eliminate the resonance phenomenon. The change in the natural frequency of this object can be achieved by causing a slight deformation, changing the shape of the object, and the like. So, if you like, hit the chassis, or attach a little steel to some areas of the chassis, continue to strengthen the earthquake, etc., change the shape of the chassis, it may be able to slow down or even eliminate this phenomenon.

 

Symptom: The monitor shows that the screen is not full

Cause: The monitor's overscan adjustment is incorrect

 

Many people installed their own machine after the first time, turned on the machine and found that their display did not cover the entire screen, like this:

Novice users are puzzled. In fact, this is just a problem with the adjustment settings of the graphics card. Usually, this problem is still A card. Do not know why, A card's initial settings, in the high resolution (over 19201080 ) will not A card over-scan to the top, usually set to the intermediate level. We also don't know what AMD meant by doing so. They only had to worry about A- card users. After they got it installed, they adjusted it again.

Solution: A card user encounters many conditions. If you do, just go to the A card's settings center, find the overscan option, and then pull it to the top. N- card also has this option, but N- cards rarely have this problem.

 

Phenomenon: The fan does not rotate

Cause: Damage or bearing off

 

The fan mounted on the chassis does not rotate. In addition to the failure of the fan itself, there are some other reasons, and these reasons can sometimes be restored.

We don't duplicate the problem of forgetting the power supply wiring. Because we only need to check a little, we can find this problem. In addition, there will be more cases of Feng fan fan blade off. The falling off may be caused by the collision of the transport, and the loosened joint itself will cause the removal of the fan blade bearing.

Escape is not irreversible, and there are also many fans that are self-retaining. Therefore, as long as the bearing is pressed, it can normally return to normal after reset. In addition, the fan that has taken off the bearing also has many determinable characteristics. For example, the fan blade feels looser and firmer than the conventional fan. Second, the fan blade is almost incapable of rotation or resistance to rotation. It is necessary to consider this aspect.

 

Solution: To confirm that the bearing has come out, push it inwards from the fan blade. When you hear a click, it means that it has been reset. If the power cord is not connected correctly, check the plug.


To this end, we need to step down. I hope that everyone will be able to use the computer on the road afterwards, so that the computer will become your help, instead of giving you trouble every day.