Use these FB-DIMM configuration rules to help you plan the memory configuration of your server:
Up to 16 FB-DIMMs can be installed in each CMP/memory module pair.
Each bank consists of four FB-DIMMs.
Each bank must be populated completely, never partially.
For each CPU/Memory module pair, all FB-DIMMs must be of the same capacity, either 2 GB, 4 GB or 8 GB per FB-DIMM.
Memory bank 0 must always be populated.
Memory bank 1 must be populated before banks 2 and 3.
Memory banks 2 and 3 must be populated simultaneously and completely.
The number of FB-DIMMs installed on a processor and its associated memory expansion module must be either 4, 8 or 16. No other combinations are supported.
4 GB FB-DIMMs at 800 Mhz are available for 1.6-Ghz systems only and cannot be mixed with other FB-DIMMs of different speed within the same system.