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HP Pavilion 21 TouchSmart All-In-One PC Rear Chassis Fan Replacement

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Remove System Fan

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Using a T15 torx screwdriver, remove the three screws that hold the system fan in place.

Gently and carefully disconnect the three wire connector that goes from the system fan to the motherboard. The three wire colors are read, yellow, blue and they connect to a point on the motherboard labeled CN4300.

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