Memory module installation rules and order
Memory modules must be installed in a specific order based on the memory configuration that you
implement and the number of processors and memory modules installed in the server.
Supported memory types
For information on the types of memory module supported by this server, see “Memory” section in
“Technical specifications” on page 4.
For a list of supported memory options, see
https://serverproven.lenovo.com.
Information about optimizing memory performance and configuring memory is available at the Lenovo Press
website:
https://lenovopress.lenovo.com/servers/options/memory
In addition, you can take advantage of a memory configurator, which is available at the following site:
https://dcsc.lenovo.com/#/memory_configuration
Specific information about the required installation order of memory modules in your server based on the
system configuration and memory mode that you are implementing is shown below.
Memory modules and processors layout
The following illustration helps you to locate the memory module slots on the processor board. The memory-
channel identification table below shows the relationship between the processors, memory controllers,
memory channels, and memory module slot numbers.
Figure 20. Memory module slots on the processor board
Table 27. Memory slot and channel identification
Processor CPU 1
Controller iMC3 iMC2 iMC0 iMC1
Channel CH1 CH0 CH1 CH0 CH0 CH1 CH0 CH1
Slot No. 0 1 0 1 0 1 0 1 1 0 1 0 1 0 1 0
DIMM No. 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
Processor CPU 2
56 ThinkSystem SR630 V3 User Guide
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