Reverse this procedure to install the RJ-45 connector.
Fan
Description Spare part number
Fan (includes cable) 611688-001
Before removing the fan, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation mode,
turn on the computer, and then shut it down using the operating system.
2. Disconnect all of the external devices that are connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet
and then unplugging the AC adapter from the computer.
4. Remove the battery (see 
Battery on page 32).
5. Remove the following components:
a. Service cover (see 
Hard drive on page 33).
b. Hard drive (see 
Hard drive on page 33).
c. Keyboard (see 
Keyboard on page 43).
d. Top cover (see 
Top cover on page 45).
e. System board (see 
System board on page 55).
f. Heat sink (see 
Heat sink assembly on page 58).
Remove the fan:
ENWW Component replacement procedures 63