Figure 54. Installing the front system fan
Step 3.  Connect the front system fan power cable to the Fan 1 or Fan 4 connector on the system board. 
See “System-board components” on page 27 and “Fan power cable” on page 63.
After this task is completed
Complete the parts replacement. See “Complete the parts replacement” on page 217.
Remove the rear system fan
Follow instructions in this section to remove the rear system fan.
About this task
To avoid potential danger, read and follow the following safety statements. 
•  S002 
CAUTION: 
The power-control button on the device and the power switch on the power supply do not turn off 
the electrical current supplied to the device. The device also might have more than one power cord. 
To remove all electrical current from the device, ensure that all power cords are disconnected from 
the power source.
•  S009 
Chapter 4. Hardware replacement procedures 117