2. Disconnect the fan plug from the system board (1).
Figure 4-20 Removing the system fan
3. Use a cross-tip screwdriver to remove the four screws from the rear of the chassis (2).
4. Lift the system fan out of the chassis (3).
CAUTION: When replacing the system fan, be sure that the fan is seated with the airflow direction
arrow pointing toward the rear of the chassis.
NOTE: To install the system fan assembly, reverse these steps.
Memory
This section describes how to remove and install a memory module.
Removing a memory module
1. Disconnect power from the system (Predisassembly procedures on page 58) and remove the side
access panel (
Removing the side access panel on page 64).
CAUTION: To ensure that memory modules are not damaged during removal or installation,
power off the workstation and unplug the power cord from the AC power outlet. If you do not unplug
the power cord before installing memory, the modules might be damaged and the system will not
recognize the memory changes.
ENWW Removing and replacing components 75