Installing A Memory Module - Lenovo ThinkServer TD230 Hardware Maintenance Manual

Table 6. Memory module installation rules
CPU DIMM
CPU 1 One
DIMM
Two
DIMMs*
Four
DIMMs
CPU 1 Two
and CPU DIMMs
2
Four
DIMMs*
Six
DIMMs
Eight
DIMMs
Note: * denotes the Channel Mirroring Mode. This mode requires that you install the DIMMs in pair.

Installing a memory module

Attention:
Do not open your server or attempt any repair before reading and understanding the Safety Information and the
Warranty and Support Information on the ThinkServer Documentation DVD that came with your product, and
"Guidelines" on page 39. To obtain a copy of the publications, go to:
http://www.lenovo.com/support
This section provides instructions on how to install a memory module.
To install a memory module, do the following:
1. Remove all media from the drives and turn off all attached devices and the server. Then, disconnect all
power cords from electrical outlets and disconnect all cables that are connected to the server.
2. Remove the server cover. See "Removing the server cover" on page 43.
3. Locate the appropriate memory slot on the system board into which you will install the memory module.
To optimize system performance, follow the related memory module installation rules and install the
memory module into a memory slot starting with the memory module farthest from the microprocessor.
See "Memory module installation rules" on page 49.
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ThinkServer TD230 Hardware Maintenance Manual
CPU1 CPU1 CPU1
DIMM DIMM DIMM
CHA2 CHA1 CHB2
X
X, 1
X, 3 X, 1 X, 4
X, 1
X, 1
X, 5 X, 1
X, 5 X, 1 X, 7
CPU1 CPU2 CPU2
DIMM DIMM DIMM
CHB1 CHD2 CHD1
X, 2
X, 2
X, 2
X, 3 X, 2
X, 3 X, 6 X, 2
X, 3 X, 6 X, 2
CPU2 CPU2
DIMM DIMM
CHE2 CHE1
X, 4
X, 4
X, 8 X, 4