![](/images/new-backgrounds/1123728/123728177x1.webp)
Figure 27. Installing the rear fan assembly
7. Connect the rear fan assembly cable to the system fan connector on the system board.
What to do next:
•To work with another piece of hardware, go to the appropriate section.
•To complete the installation or replacement, go to “Completing the parts replacement” on page 104.
Installing or replacing a hard disk drive
Attention: Do not open your computer or attempt any repair before reading and understanding the “Important Safety Information” on page 1.
This section provides instructions on how to install or replace a hard disk drive.
Notes: If you are installing additional hard disk drives, ensure that your computer is properly configured to support them.
•If installing five SATA hard disk drives, ensure that the SATA hard disk drive enablement module (one to five hard disk drives) is installed.
•If installing SAS hard disk drives, ensure that the SAS hard disk drive enablement module or the LSI MegaRAID SAS adapter is installed.
To install or replace a hard disk drive, do the following:
1. Turn off the computer and disconnect all power cords from electrical outlets.
Chapter 10. Replacing FRUs 83