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What are the signs of power unit failure?

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• Strange noises may appear from the back of the cabinet where the cord is located.
Especially a grinding noise emitted from the place where the cord is located. This
grinding noise means that the fans in the PSU has gone bad and will stop working
anytime. This grinding noise means that the fans in the PSU has gone bad and will stop
working anytime.

• When the computer is turned on, nothing happens. Sometimes this may coincide with a
flashing light on the desktop.

• The systems turns on for just a second or two and then turns off immediately. This
generally occurs from the issue of power supply and mother board failures.

• The computer is on for a while, and suddenly turns off without warning. It might also
display a blue screen of death.

• Burning smell. If the condition of the power supply is worsened to a very high extent, it
will start to emit burning smell or even expel smoke. In this case the components inside
the PSU has burnt and can no longer be used. Hence, the computer should not be used
until the power supply is replaced with a new one.

Kavungya answered the question on September 1, 2021 at 05:21

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What are the signs of power unit failure?

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