Answer to Question #225252 in English for Dee

Question

Explain the testing steps you would follow when using A power supply tester.

Answer 1

1. Turn off the computer, unplug the power cord, and remove any other peripherals connected to the outside of the computer.

2.Then open the box. To make testing the power supply easier, move a separate open compartment to a convenient location, such as a bathroom. B. A flat and unstable table or surface. Remove all internal peripherals from the computer. An easy way to check if the plug is unplugged is to use the power supply's power cord handle. Each wire group must end with one or more electrical connections.

3. You do not need to disconnect the actual AC adapter from your computer. Also, there is no need to disconnect data or other cables that are not connected to the AC adapter. 

4.Group all cables and electrical connections for ease of testing. When routing the power cord, keep the power cord as far away from the computer case as possible to easily connect the power connector to the power tester. 

5.Make sure the power switch is set correctly in your country. In the US, this switch should be set to 110V / 115V. Connect the 24-pin ATX motherboard power connector and the 4-pin ATX motherboard power connector to the tester. Some power supplies may have a 6 or 8 pin assembly instead of a 4 pin motherboard connector. If you have multiple types, simply connect them using a 24-pin network connector.

7. Connect the power supply to a DC outlet and turn on the switch on the back. Some power supplies do not have a switch on the back. Except for the power supply under test, a hardware connection to the power supply is sufficient.

8.Press and hold the power button on the power tester. You can hear the fan spinning in the power supply. Some versions of the Coolmax PS-228 tester do not require holding the power button down, while others do.

A spinning fan does not mean that the power supply is properly powering the unit. Also, some power supply fans do not work during testing, even if the power supply is good. You have to keep experimenting to see something.

9.Verify that the power supply's LCD tester screen is on and all fields are displaying numbers. The motherboard power connector connected to the power tester supports all voltage ranges including +3.3V DC, +5V DC, +12V DC and -12V DC. If the voltage shows "LL" or "HH" or the LCD screen does not light up at all, the power supply is malfunctioning. must be replaced. What you are looking at is an LCD display. So you don't have to worry that the actual LCD readings don't include lights and other voltage indicators. 

10.Check the line voltage tolerance and make sure the voltage allowed by the power tester is within the acceptable range. If the voltage is out of range or the PG delay value is not 100-500ms, replace the power supply. The tester is designed to fail when the voltage is out of range, but you must ensure that it is safe.

11. If all listed voltages are within acceptable limits, you are verifying that the power supply is working properly. Continue testing to test other electrical connections.

 Otherwise, go to step 12.

 12.Turn off the breaker on the back of the power supply and unplug the power cord. Connect one of the connectors to the appropriate location on the power tester (15-pin SATA power connector or 4-pin Molex power connector). Do not make more than one of these electrical connections at the same time. It is unlikely that the performance tester will be damaged, but the electrical connection will not be completely damaged. The motherboard's power connector that was previously connected to the lab should be connected during subsequent electrical tests. Connect the power supply to the port