How do I check the quality of my power supply? How to detect if your computer s power supply is brok

Generally, choose a big brand, the quality of workmanship and materials should be paid attention to, in one is to look at the power performance parameters, generally based on the rated power, do not look at the peak power, the peak power is used by deception. If you are studying the details, it is to increase the voltage with the measurement data, which is very laborious, mainly to see whether 170V-240V can be normal enough to stabilize the voltage of the computer. Now the broadband voltage can reach 140V-240V can be tested, but you need the help of instruments.

Take it is not the easiest to look at the weight of the big brand in looking at your weight.

1. Prepare a copper wire and remove the outer skin of the copper wire.

2. Both ends of the copper wire are stripped of the insulating skin, and the test wire is made.

3. The power supply of our computer is removed from the host of the computer.

4. Find the interface of connecting the computer to the motherboard, which is generally 20-pin or 24-pin.

5. The method of testing the power supply is to use the wire to short-circuit the green interface of the power cord with the black interface to start the power supply.

6. Next, we will plug in the power supply, at this time, it will not start without short-circuit power supply.

7. Insert one end of the wire into the green interface and the other end into the black interface.

8. At this time, the fan of the power supply starts to rotate, which means that the computer power supply has started to work. Test it like this, and you know that this power supply is good, and it has been damaged.

Categories: Computer, Networking, >> Hardware.

Problem description: There is no shortage of power supply, but how to detect the quality of power supply?

Analysis: The simple solution is as follows:

Turn off the external power supply, remove the computer power supply, find a curved sail thick pin (fine copper wire, iron wire is OK), short circuit the power supply to the green and black (any black can be) plug in the plug connected to the motherboard, do not connect the wrong one, otherwise you will bear the consequences.

Find an outlet with a switch, connect the computer power supply with a power cord, and the total power supply at home is not tripped, and it is recommended to disconnect some household appliances first. Use the switch of the socket to turn on the power supply of the state town, if the power supply fan rotates, it means that the power supply is basically normal; If there is an abnormal noise, the power supply of the computer may be damaged, please disconnect the power immediately.

If the power supply is basically normal, when the power is on, adjust the multimeter to the DC 20V level and measure it according to the nominal voltage of the motherboard power socket on your motherboard manual. It is best to use a digital meter to observe the voltage size and fluctuation to judge the quality of the computer power supply.

In addition, you must pay attention to personal safety when operating.

The power supply is an indispensable component of the computer hardware, which makes the computer start and work normally by transferring power to other hardware components of the computer. However, because the power supply is a hardware component that is not directly involved in the computer's data storage and computing, some users are not very concerned about its performance. However, the poor state of the power supply may pose a great threat to the overall stability and service life of the computer, so it is necessary for us to test and maintain the power supply.

Here are some ways to test how good your computer's power supply is:

1.Use a voltmeter.

A voltmeter is a tool used to measure voltage, which can help us quickly detect whether the output voltage of a power supply is stable and normal. Before using the voltmeter, we need to unplug the power socket and unplug all the cables on the power supply motherboard. Next, insert the red wire from the voltmeter into the 4-pin and 6-pin sockets, and connect the black wire to the ground wire of the power supply.

Next, connect the power socket to the high power supply, and turn on the computer power, and the voltmeter can measure the output voltage of the power supply. Under normal circumstances, the 12V output voltage should be between, the 5V output voltage should be between, and the output voltage should be between.

2.Use a remote meter.

A remote meter is a tool specially used to measure power supplies, fans, temperatures, etc., and it can detect the internal hardware of the computer when it is turned on. To use the remote measuring instrument, you need to install the measuring instrument software and the corresponding hardware monitoring plug-in, and then place the sensor of the measuring instrument probe at the air outlet of the power supply, and after turning on the computer power, you can check the voltage, current, and power output of the power supply through the software.