What if the computer doesn't work? Several common problems and solutions in computer

Now a lot of people are accustomed to using mobile phone to entertain, but neglected the existence of the computer, causing the computer for a long time does not boot and caused a period of time after the computer automatic damage, often appear this situation will feel panic, so I am here to enumerate a few common problems and solutions, hoping to help everyone.

　　Tools/raw Materials

Computer One

Multimeter A

Alcohol

Screwdriver

Keyboard

　　Method/Step

1, the first time you encounter the situation below, do not panic, because this is not a big problem, but after you panic, you have no clue to their own judgment there is a problem. First you have to calm down, if you have a multimeter at home, then transferred to 220V to detect your own home mains, if up and down floating not more than 12V, then eliminate your voltage problem. If there is no multimeter, it does not matter, the general voltage is no problem. or the appliance of your own home stopped, just open the computer, then the computer is still not bright, the voltage is ruled out.

2, here is divided into 2 kinds of the most common phenomenon, the first is the power of no display, the second is not power.

Let me start with the no display of power.

The cover of the chassis open, and then the inside of the memory strip out, with paper towels and alcohol to wipe, and then inserted back, generally can be turned on, because this is the memory of the metal block oxidation, the oxidation of the part of the clean can be.

The following diagram is to remove the memory strip can be stained with paper towels to wipe the alcohol, but the fingers do not touch the metal position, my fingers are not good touch, we do not learn ah.

3, if this is still not the case, do not rule out is the monitor out of the question, generally put your home TV or have more than one notebook and so on to connect the VGA line of equipment, with your computer connected, there is a display then your monitor is good, the problem is out of your chassis there.

In general, the VGA in the following image directly power to the computer's LCD screen, if there is a display, then the problem of your chassis. This can be inserted directly into the VGA. Do not do other things.

4, and then is not power, do not power up the memory of the plug can not be turned on, this kind of situation is generally a switch or the problem of the power itself, do not exclude the motherboard also has this problem.

First unplug the main engine, and then plug in the power supply short switch, if there is a display is the switch is broken, a good change.

The figure below is my ballpoint pen refers to that position, the upper right corner of the 2 lines, pull out and plug in the power, and then use a screwdriver to touch the 2 needles, there is a reflection of the switch problem. No reflection is the opposite result.

5, then is to replace a can use the power to try, the general common fault is directly replace the power supply can be normal boot. In this note: High power power can be used in low-power computers, but the high power of the computer do not use low-power power supply, or forced to use will cause the crash and constantly restart, or is too high temperature, the most afraid of is the phenomenon of burning the motherboard.

6, if the change of the suspected faulty power supply, some inserted in other machines can be used, this is generally the power supply board has a problem, see is plugged into what the computer and in what the use of the environment. If you want to know if the power supply can barely use, then read the experience of the students, if you have a multimeter in your hand, adjust the multimeter to the 20V bezel, and then look at the pattern of the power supply side, the hands of the 2-line multimeter inserted in each of the different color lines, the voltage on the top of the test slowly, If the voltage test has a set of lines is not normal, then the power is still not for good oh.

Each power supply has the same number of volts, but it is best to measure it by the number of volts the power supply marks.

7. Finally, if the power is changed, failure or no power of the case, then only the last possible, then the motherboard is the problem, but the motherboard so many components, the bad, it is difficult to test out, are generally required to professional maintenance people to detect, so we do not disorderly detection motherboard Oh, Otherwise, the motherboard may be completely burned, can not be remedied.

The following image is the computer board inspection, but my own maintenance has not yet come to this level, so the next picture I do not go to shoot myself.

8, in fact, if we still do not want to go to their own testing or simple repair, I suggest that the computer sent to the computer store or other places capable of repair, to help your love machine repair.

I would like to tell you that the computer would rather open every day, do not put the computer for 1 months or longer, then I congratulate you, your computer will be a great chance of breaking down.

I wish everyone's computer can use a few years will not be bad oh.

　　Attention matters

When dismantling the machine, pay attention to the danger, especially when connected to the power supply or less touch, otherwise it will be electricity to their own.

When the machine is broken, do not break, this may appear more failures, the last injury to the wallet OH.

The above is the computer appears several common malfunctions and solves the method introduction, hoped can be helpful to everybody!