main blower
To remove the main blower, first remove the optical drive...
(Roll mouse over image)
...the rear cover...
...and the motherboard EMI shield.
Detach the blower connector from the motherboard.
Remove the remaining two screws for the blower.
Pull the blower out of the unit.
To replace the main blower, align the top of the blower over the thermal radiator duct.
Secure the blower with two screws.