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Table 37. Supported memory matrix
DIMM type Rank
RDIMM
1R
2R
General memory module installation guidelines
To ensure optimal performance of your system, observe the following general guidelines when configuring your system memory.
If your system's memory configurations fail to observe these guidelines, your system might not boot, stop responding during
memory configuration, or operate with reduced memory.
The memory bus may operate at speeds of 3200 MT/s, 2933 MT/s depending on the following factors:
● System profile selected (for example, Performance Optimized, or Custom [can be run at high speed or lower])
● Maximum supported DIMM speed of the processors
● Maximum supported speed of the DIMMs
NOTE:
MT/s indicates DIMM speed in MegaTransfers per second.
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:
● All DIMMs must be DDR4.
● x4 and x8 DRAM based memory modules can be mixed.
● If memory modules with different speeds are installed, they operate at the speed of the slowest installed memory module(s).
● Populate memory module sockets only if a processor is installed.
● In Optimizer Mode, the DRAM controllers operate independently in the 64-bit mode and provide optimized memory
performance.
● Memory modules of different capacities can be mixed provided other memory population rules are followed.
NOTE:
For example, 8 GB and 16 GB memory modules can be mixed.
● Mixing of more than two memory module capacities in a system is not supported.
● Unbalanced or odd memory configuration results in a performance loss and system may not identify the memory modules
being installed, so always populate memory channels identically with equal DIMMs for best performance.
Removing a memory module
Prerequisites
1. Follow the safety guidelines listed in
2. Follow the procedure that is listed in
3.
Remove the air
shroud.
WARNING:
The memory modules are hot to touch for some time after the system has been powered off. Allow
the memory modules to cool before handling them.
Steps
1. Locate the appropriate memory module socket.
2. To release the memory module from the socket, simultaneously press the ejectors on both ends of the memory module
socket to fully open.
CAUTION:
Handle each memory module only by the card edges, ensuring not to touch the middle of the
memory module or metallic contacts.
3. Lift the memory module away from the system.
Capacity
8 GB
16 GB, 32 GB, 64 GB
Safety
instructions.
Before working inside your
DIMM rated voltage and speed Operating speed for
DDR4 (1.2V), 3200 MT/s
DDR4 (1.2V), 3200 MT/s
system.
Installing and removing system components
DIMMs per Channel
(DPC)
3200 MT/s
3200 MT/s
109
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