Smell the air around the PSU; a distinct burnt odor is a definitive sign of electrical failure and requires immediate replacement. If the fan does not spin or makes grinding noises, the PSU is faulty.
Power Supply Troubleshooting Step By Step
Unplug the PSU from the computer and locate the 24-pin main connector. If the PSU fan spins continuously, the unit is receiving power and is likely functional.
Look closely at the vents and fan; dust buildup here can lead to overheating and failure. This test bypasses the need for a case switch, allowing you to verify the unit is active.
Power Supply Troubleshooting Step By Step
Before you invest in replacing expensive parts like the motherboard or CPU, verifying the health of your power delivery system saves time and money. Start by examining the PSU casing for any physical damage, such as dents or cracks.
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