Capacitors inside the PSU can hold a charge for days, so exercise caution even after the machine has been off. Before beginning any test, you must ensure the computer is completely disconnected from the power source.
Step-by-Step Voltage Measurement with a Multimeter
Gather your tools before starting. 6V, the 5V rail should be between 4.
25V, and the 3. While the paperclip test is a classic diagnostic method, a digital multimeter provides the most accurate readings for how to test a desktop power supply effectively.
Desktop Power Supply Voltage Test Guide: Step-by-Step Measurement with a Multimeter
The Paperclip Test (Basic Output Verification) The paperclip test is a popular method to quickly determine if a power supply turns on and produces power. Before you troubleshoot software or assume a component is dead, verifying the health of your power delivery is the logical first step.
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.