Testing Under Load Conditions. Gather your tools before starting.
Step by Step Power Supply Test: Checking PSU Functionality Under Load
Before beginning any test, you must ensure the computer is completely disconnected from the power source. Unlike laptops or all-in-one PCs, desktop computers use a standard ATX power supply that connects to every component in the chassis.
Start by reconnecting the paperclip to the green PS_ON pin and a black ground pin. If the PSU fan spins up and runs, it indicates that the unit is receiving power and attempting to operate.
Step by Step Power Supply Test Under Load Conditions
3V rail should fall between 3. Ensure your multimeter is set to measure direct current (DC) voltage, typically denoted by a "V" with straight lines above it.
More About How to test a desktop power supply
Looking at How to test a desktop power supply from another angle can help expand the discussion and give readers a second clear paragraph under the same section.
More perspective on How to test a desktop power supply can make the topic easier to follow by connecting earlier points with a few simple takeaways.
