How do you test the ATX power supply unit (PSU) of a desktop PC using a multimeter?
Learn how to test your ATX power supply. Learn how to diagnose your PSU with a paper clip or multimeter.
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PC Power Supply (PSU)
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Guides to choose and test a PC power supply
How to choose, configure and test a PC power supply, including PSU standards and safe ATX checks.
The best PC power supplies in 2026 – how to choose the right PSU
Find the ideal power supply for your gaming or professional configuration! Selection of the most powerful power supplies with certification and cooling.
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80 PLUS Ruby: the new certification for power supply units (PSUs) for data centres
What is 80 PLUS Ruby, and why does it go beyond Titanium? Discover what this certification changes for data centers, cloud infrastructure, and AI.
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