Up to 16 DDR3 DIMMs can be installed on the server.
Four DIMM capacities are supported: 4 GBytes, 8 GBytes, 16 GBytes, and 32 GBytes.
All DIMMs installed in the server must have identical architecture, including identical capacity and rank classification. To identify DIMM architecture, see DIMM Rank Classification Labels.
Note - 2Rx4 16 GByte DIMMs and all 32 GByte DIMMs require System Firmware 8.2.1.b or later. See DIMM Rank Classification Labels.
The DIMM slots may be populated as 1/4 full, 1/2 full, or full. Use the following figure as a guide for populating the DIMM slots.
1/4 Full—Install DIMMs in the slots labeled 1 only.
1/2 Full—Install DIMMs in the slots labeled 1 and 2 only.
Full—Install DIMMs in every slot (1, 2, and 3).
Any DIMM slot that does not have a DIMM installed must have a DIMM filler.
Note - The server must have at least a 1/4-full memory configuration.
If the server's memory configuration fails to meet any of these rules, applicable error messages are reported. See DIMM Configuration Errors—System Console for a description of these messages.