• Populate all sockets with white release levers first, and then all the sockets with black release levers.
• When mixing memory modules with different capacities, populate the sockets with memory modules
with the highest capacity first. For example, if you want to mix 4 GB and 8 GB DIMMs, populate 8 GB
DIMMs in the sockets with white release levers and 4 GB DIMMs in the sockets with black release
levers.
• Memory modules of different capacities can be mixed provided other memory population rules are
followed (for example, 4 GB and 8 GB memory modules can be mixed).
• Mixing of more than two DIMM capacities in a system is not supported.
• Populate two DIMMs per processor (one DIMM per channel) at a time to maximize performance.
Sample memory configurations
The following table shows sample memory configurations for a single processor configuration.
NOTE: 1R and 2R in the following table indicate single, and dual-rank memory modules
respectively.
Table 13. Memory configurations—single processor
Populated
system
capacity (in
GB)
Memory
module size
(in GB)
Number of
memory
modules
Memory module rank,
organization, and
frequency
memory module slot population
4 4 1
1R, x8, 2133 MT/s,
1R, x8, 1866 MT/s
A1
8 4 2
1R, x8, 2133 MT/s,
1R, x8, 1866 MT/s
A1, A2
16 4 4
1R, x8, 2133 MT/s,
1R, x8, 1866 MT/s
A1, A2, A3, A4
8 2
2R, x8, 2133 MT/s,
2R, x8, 1866 MT/s
A1, A2
32 8 4
2R, x8, 2133 MT/s,
2R, x8, 1866 MT/s
A1, A2, A3, A4
16 2
2R, x8, 2133 MT/s,
2R, x8, 1866 MT/s
A1, A2
64 16 4
2R, x8, 2133 MT/s,
2R, x8, 1866 MT/s
A1, A2, A3, A4
83