Specifications

Procedure
1. Remove the plastic cable retainer and turn it over. Gently peel the fan gasket off the
back of the cable retainer.
Warning: Whenever the bottom housing is opened for service, you must do two things:
1.You must clean the original thermal film from the surfaces joining the thermal
interface layer and reapply thermal paste to the thermal pipe.
2. You must tighten the four torx screws on the bottom housing to a minimum of 17
in.-lbs. If you do not have a torque driver, you will have to make sure these screws
are tightened by hand FIRMLY, BUT NOT FORCIBLY. Or, purchase the service tool
(076-0899) in order to ensure the thermal pipe is firmly mated with the top base. If the
bottom housing is not securely attached to the base in this fashion, the CPU may
overheat and become damaged. Failure to follow either of these steps could cause
the computer to overheat and damage internal components.
Refer to the topic, “Thermal Paste Application” for detailed information.
Fan Gasket
iMac (Flat Panel) Take Apart - 61