Sometimes, however, you might need to test your power supply unit (PSU) to ensure that it's in good working order. Testing your power supply can be a key part of troubleshooting certain PC issues, or it might be a precautionary measure when you're installing a power supply in a new PC...
You can use a multimeter to test the connectivity and voltage between all the different pins. Simply short out the Power On pin and an adjacent ground pin with a jumper as we did in the previous section. Then, connect one node of the multimeter to the ground and then to each of the o...
It is a basic Power ON test to check whether the PSU is starting or not. It is done by shortening thePower Supply ON (PS_ON)Signal Pin of the 24-pin or 20-pin ATX connector of the PSU with any one of the ground pins in the connector. For the 24-pin connector, it is PIN 16 ...
Testing a power supply manually with a multimeter is one oftwo ways to test a power supplyin a computer. hard drive(s),optical drive(s), andfloppy drive. Some motherboards require an additional 4, 6, or 8-pin power connector, and somevideo cardsneed dedicated power, too. ATX Power Su...
3.Connect spare PSU to a power socketand check if your PC is working correctly. 4A. If your PC functions well with the spare PSU, it indicates a problem with the original Power Supply Unit. Then,replace/repair PSU. 4B. If the problem still exists with your computer, then get it checke...
After doing further research I found that that retail "computer power supply testers" are just voltage meters. They do not test the power supply using the actual loads found in typical computers. Share Share a link to this answer Copy linkCC BY-SA 3.0 Cite Follo...
3. Temporarily Connect Power Supply to Motherboard (and GPU) Place your PSU (Power Supply Unit) on your desk next to your motherboard. You're going to need to plug it into the motherboard to be able to do the test.If your PSU is a modular or semi-modular unit, you'll need to ...
Learn how to run a self-test diagnostic on the power supply unit of a Dell desktop or all-in-one computer. Built-in Self Test (BIST) helps determine if the power supply unit is working.
How to supply, load, and test power-management circuits (Part 1 of 2)Frederik DostalNational Semiconductor
Testing a Fan Separately Remove the power supply from your computer, disconnecting all cables. If you have access to a spare working power supply, using that one instead will save you the time spent disconnecting it and reconnecting it.