General Memory Module Installation Guidelines - Dell PowerEdge C4130 Owner's Manual

The following table shows the memory populations and operating frequencies for the supported
configurations:
Table 27. Memory population
DIMM DIMMs
Type Populated/
Channel
1
RDIMM
2
1
LRDIMM
2

General memory module installation guidelines

NOTE: Memory configurations that fail to observe these guidelines can prevent your system from
booting, stopped responding during memory configuration, or operating with reduced memory.
The 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 memory modules can be mixed. For more information, see the Mode-specific
guidelines section.
• Up to two dual or single-rank RDIMMs can be populated per channel.
• Populate memory module sockets only if a processor is installed. For single-processor systems,
sockets A1 to A8 are available. For dual-processor systems, sockets A1 to A8 and sockets B1 to B8 are
available.
• Populate all the sockets with white release tabs first and then the black release tabs.
• Populate the sockets by the highest rank count, in the following order—first in sockets with white
release tabs and then with the black release tabs. For example, if you want to mix single-rank and
dual-rank memory modules, populate dual-rank memory modules in the sockets with white release
tabs and single-rank memory modules in the sockets with black release tabs.
• When mixing memory modules with different capacities, populate the sockets with memory modules
with highest capacity first. For example, if you want to mix 4 GB and 8 GB memory modules, populate
8 GB memory modules in the sockets with white release tabs and 4 GB memory modules in the
sockets with black release tabs.
• In a dual-processor configuration, the memory configuration for each processor should be identical.
For example, if you populate socket A1 for processor 1, then populate socket B1 for processor 2, and
so on.
• 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 memory module capacities in a system is not supported.
• Mixing LRDIMMs and RDIMMs is not supported.
• Populate four memory modules per processor (one DIMM per channel) at a time to maximize
performance.
Voltage
1.2 V
1.2 V
Operating Maximum DIMM Rank/
Frequency (in MT/s) Channel
2400, 2133, 1866, Dual rank or single rank
1600, 1333
2400, 2133, 1866, Dual rank or single rank
1600, 1333
2400, 2133, 1866, Quad rank
1600, 1333
2400, 2133, 1866, Quad rank
1600, 1333
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