Before beginning any test, you must ensure the computer is completely disconnected from the power source. Start by reconnecting the paperclip to the green PS_ON pin and a black ground pin.
Safety First: Essential Precautions Before Testing Your Power Supply
Using a paperclip or a small piece of wire, bridge the connection between the green PS_ON pin and any adjacent black ground pin. Before you troubleshoot software or assume a component is dead, verifying the health of your power delivery is the logical first step.
A failing PSU can cause sudden shutdowns, data loss, and potentially damage other expensive components like the motherboard, CPU, and graphics card. 3V rail should fall between 3.
Safety First: Essential Precautions Before Testing Your Power Supply
However, this test does not confirm if the voltage rails are stable, which is why proceeding to voltage measurement is essential for a thorough analysis of how to test a desktop power supply. 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.