How to test the quality of ATX power supply? How do I start the power supply without access to the computer?
Testing a ATX power is good or bad. Just test the stability. The test method is to start power alone, then use the output voltage of a pointer type multimeter to power, and then hit the power supply casing, but don't break, see the multimeter voltage indicator changes little, if the fluctuation reaches two or three volts, the power is certainly not good.Method of starting power alone is the power of the most export the head on the green line and a black line together can be, you carefully to find it, only a green power, which even can be black.
After starting the power supply, the output voltage of each corresponding picture is measured, and the load capacity is tested with a certain power load. The output power of the power supply under the fluctuation of the mains voltage is also tested. The more direct way is to test the output voltage, meet the requirements and then connect to the computer board to see if it can start correctly.
You need to start the power supply, start the method, find the green line with the number 16 (24 pin power), the pin hole, and the 20 pin power supply is the green line with the number 14. The ATX power source can output various voltage by shorting the pin of any black wire on the pin.
Check whether there is a formal description of the power and certification, if you can open the power of the lid, you can see the power supply, work and parts of the exception.
