If the fan does not move, or if it makes grinding or loud whining noises, the bearings are likely worn out. Testing your power supply is a fundamental step in maintaining a reliable and safe computing or electrical system.
Step-by-Step Power Supply Testing Procedures
Plug the power supply into the wall and turn the switch on. To protect yourself, always disconnect the AC power cable from the wall outlet before opening the case or touching any internal wires.
To do this safely, you can either probe the wires coming out of the supply while it is plugged in and turned on, or disconnect the unit and test the cables individually. Modern power supplies contain large capacitors that can retain a dangerous charge long after the device is unplugged.
Step-by-Step Power Supply Testing Procedures
If the fan spins up and you hear the familiar whir, the basic switching mechanism is working. Additionally, ensure that the ventilation grilles are not clogged with debris.
More About How to test my power supply
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More perspective on How to test my power supply can make the topic easier to follow by connecting earlier points with a few simple takeaways.
