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Figure 33. Memory socket locations on the system board
Memory channels are organized as follows:
Processor 1
channel 0: memory sockets A1 and A3
channel 1: memory sockets A2 and A4
The following table shows the memory populations and operating frequencies for the supported configurations:
Table 15. Memory populations and operating frequencies for the supported configurations
Memory module type
ECC (UDIMM)
General memory module installation guidelines
Your system supports Flexible Memory Configuration, enabling the system to be configured and run in any valid chipset architectural
configuration. The following are the recommended guidelines for installing memory modules:
•
x4 and x8 DRAM-based DIMMs can be mixed.
•
Up to two dual- or single-rank ECC UDIMMs can be populated per channel.
•
Populate DIMM sockets only if a processor is installed. For single-processor systems, sockets A1 to A4 are available.
•
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.
70
Installing and removing system components
Memory modules
populated per
channel
1
1600, 1866, 2133, 2400
2
1600, 1866, 2133, 2400
Operating frequency (in
MT/s)
1.2 V
Maximum memory module ranks
per channel
Dual rank or single rank
Dual rank or single rank
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