For more information about the memory modules in your specific server model, use the Setup Utility
program. See “Viewing information in the Setup Utility program” on page 51.
For a list of supported ThinkServer memory module options, go to:
http://lenovoquickpick.com/usa/home/thinkserver/rack-and-tower-server
The following illustration shows the locations of all memory slots on the system board.
Figure 40. Memory slots on the system board
1
Memory slot (CPU1 DIMMA1)
7
Memory slot (CPU2 DIMMA1)
2
Memory slot (CPU1 DIMMA2)
8
Memory slot (CPU2 DIMMA2)
3
Memory slot (CPU1 DIMMB1)
9
Memory slot (CPU2 DIMMB1)
4
Memory slot (CPU1 DIMMB2)
10
Memory slot (CPU2 DIMMB2)
5
Memory slot (CPU1 DIMMC1)
11
Memory slot (CPU2 DIMMC1)
6
Memory slot (CPU1 DIMMC2)
12
Memory slot (CPU2 DIMMC2)
The following table explains the memory module installation rules for servers that have only one
microprocessor (CPU1) installed. The “X” mark indicates the memory slots into which the memory modules
should be installed in different situations.
Notes:
• When you install memory modules with different ranks in one channel, start from the farthest memory slot
in the channel and install the memory module that has the most ranks first.
• When you install 1.35 V memory modules and 1.50 V memory modules into the memory slots for the
same microprocessor, all the memory modules run at 1.50 V.
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ThinkServer RD340 User Guide and Hardware Maintenance Manual
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