Memory Module Installation Rules And Order - Lenovo ThinkSystem SR665 V3 User Manual

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
Your server has 24 memory slots with 24 channels. 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 is shown below.
Memory modules and processors layout
Figure 13. Memory modules and processors layout
The memory-channel configuration table below shows the relationship between the processors, memory
controllers, memory channels, and memory module slot numbers.
Table 16. Memory slot and channel identification
Process-
or
2 1 5
UMC No.
Channel
F E D
No.
DIMM
24 23 22 21 20 19 18 17 16 15 14 13
No.
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44
3.
.
Processor 2
0 4 3 9 10 6
C B A G H I
11 7 8 2 1 5
J K L F E D
12 11 10
Processor 1
0 4 3 9 10 6 11 7
C B A G H I
9 8 7 6 5 4
8
J K L
3 2 1