Hardware options installation 50
• Observe the general DIMM slot population guidelines (on page 49).
• Each channel must have a valid online spare configuration.
• Each channel can have a different valid online spare configuration.
• Each populated channel must have a spare rank. A single dual-rank DIMM is not a valid configuration.
Population order
For memory configurations with a single processor or multiple processors, DIMMs must be populated
sequentially in alphabetical order (A through L).
After installing the DIMMs, use the BIOS/Platform Configuration (RBSU) in the UEFI System Utilities to
configure supported AMP modes.
Installing a DIMM
The server supports up to 24 DIMMs. To install a DIMM:
1. Power down the server (on page 24).
2. Remove all power:
a. Disconnect each power cord from the power source.
b. Disconnect each power cord from the server.
3. Do one of the following:
o Extend the server from the rack (on page 24).
o Remove the server from the rack (on page 25).
4. Remove the access panel (on page 25).
5. Remove the air baffle (on page 31).
6. Open the DIMM slot latches.
7. Install the DIMM.
8. Install the air baffle.
9. Install the access panel (on page 26).
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