Up to 32 DDR3 DIMMs can be installed in the server, with up to eight DIMMs installed in each memor riser.
When installing, upgrading, or replacing DIMMs, note the following:
Four DIMM capacities are supported: 4 Gbyte, 8 Gbyte, 16 Gbyte, and 32 Gbyte.
Note - 2Rx4 16 Gbyte DIMMs and all 32 Gbyte DIMMs require System Firmware 8.2.1.b or later. See DIMM Rank Classification Labels.
All DIMMs installed in the server must have identical capacities (all 4 Gbyte, all 8 Gbyte, all 16 Gbyte, or all 32 Gbyte).
All DIMMs associated with each CMP must be identical (identical capacity and identical rank classification). For example, install identical DIMMs in all slots of CMP0/MR0 and CMP0/MR1, and identical DIMMs in all slots of CMP1/MR0 and CMP1/MR1.
To identify DIMM rank classification, see DIMM Rank Classification Labels.
The DIMM slots may be populated as 1/2 full or full.
1/2 Full—In all memory risers, install DIMMs in the slots labeled 1 and 2 in the illustration, for a total of 16 DIMMs installed in the server. Install DIMM filler panels in the remaining slots.
Full—In all memory risers, install DIMMs in all slots (labeled 1, 2, and 3 in the illustration), for a total of 32 DIMMs installed in the server.
Any slot without a DIMM must have a DIMM filler installed.