P775DM3 Replacement of fans

Unlock the lock circled in red.

Lift the battery while unlocking the lock circled in red.

Unscrew the five screws circled in red.

Slide the plate in the direction of the red arrow.

Lift the plate.

Unscrew the four large screws circled in green

Unscrew the five small screws circled in red

Lift the cooler with the two tabs circled in blue

Unscrew the two screws circled in red

Lift the card to allow access to the red circled connector

Disconnect the red circled connector

Pull it in the direction of the red arrow

Unscrew the three screws circled in red.

Disconnect the framed connector in red.

Remove the fan.

Unscrew the three screws circled in red.

Disconnect the framed connector in red.

Lift the fan.