Hardware options installation 46
Installing a DIMM
CAUTION: To avoid damage to the hard drives, memory, and other system components, the
air baffle, drive blanks, and access panel must be installed when the server is powered up.
1. Power down the server (on page 20).
2. Extend the server from the rack (on page 20).
3. Remove the access panel (on page 22).
4. Remove the BBWC battery pack, if installed ("Remove the BBWC battery pack" on page 22).
5. Remove the air baffle (on page 23).
6. Open the DIMM slot latches.
7. Install the DIMM.
8. Install the air baffle (on page 23).
9. Install the BBWC battery pack, if removed ("Installing the BBWC battery pack" on page 58).
10. Install the access panel (on page 22).
If you are installing DIMMs in mirrored or lock-step configuration, configure this mode in RBSU ("HP ROM-
Based Setup Utility" on page 75).
For more information about LEDs and troubleshooting failed DIMMs, see "Systems Insight Display LED
combinations (on page 15)."
Hot-plug SAS and SATA hard drive options
When adding hard drives to the server, observe the following general guidelines:
• The system automatically sets all device numbers.
• If only one hard drive is used, install it in the bay with the lowest device number ("SAS and SATA
device numbers" on page 16).
• Hard drives must be SFF types.