Hello, my son gave his Shuttle XPC to me to use. Problem with this is, when I turn the back switch "on" the back fan makes lot of noise. Then when I press the power button on the front, the back fan stop producing the noise.
When I turned my computer off, the back fan start making noise and contniue for hours and days till I turn the back witch off.
Any help is highly appreciated and please when you are helping, remember you are working with a old man with NO computer knowledge.

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