Visually inspect the PSU for physical damage, such as bulging capacitors, burn marks, or a faint burnt odor, which often indicates failed electrolytic cells. When a PC fails to power on, the first component many technicians suspect is the power supply unit.
Using a Paperclip to Test Your Power Supply Unit
Ensure that the power cable is securely seated in both the wall outlet and the PSU, and verify that the correct voltage switch on the back of the unit matches your regional power standard. 3V, +5V, and +12V rails; each should read within ten percent of their labeled values.
3V, +5V, and +12V rails; each should read within ten percent of their labeled values. Set the multimeter to the DC voltage range, insert the black probe into a black ground pin and the red probe into a colored pin on the 24-pin connector.
Using a Paperclip Test to Check PSU Voltage Rails
Reseat the 24-pin connector firmly into the motherboard, ensuring the clip locks into place. Reseat the 24-pin connector firmly into the motherboard, ensuring the clip locks into place.
More About How to fix a power supply for pc
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More perspective on How to fix a power supply for pc can make the topic easier to follow by connecting earlier points with a few simple takeaways.
