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Installing A Memory Module - Lenovo ThinkServer TD350 70DG User Manual And Hardware Maintenance Manual

Machine types: 70dg, 70dh, 70dj, 70dk, 70dl, 70dm, 70dn, and 70dq user guide.
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The following table explains the memory module installation order for servers that have only one
microprocessor (CPU1) installed.
Table 10. Memory module installation order in lockstep mode for servers with one microprocessor
A1
CPU1 DIMM
DIMM
1
installation order
The following table explains the memory module installation order for servers that have two microprocessors
(CPU1 and CPU2) installed.
Table 11. Memory module installation order in lockstep mode for servers with two microprocessors
A1
DIMM
1
installation order

Installing a memory module

Attention: Do not open your server or attempt any repair before reading and understanding "Safety information"
on page iii and "Guidelines" on page 63.
Before you begin, print all the related instructions or ensure that you can view the PDF version on another
computer for reference.
Notes:
• To optimize system performance, ensure that you follow the memory module installation rules when
performing the operation. See "Memory module installation rules" on page 76.
• Use any documentation that comes with the memory module and follow those instructions in addition to
the instructions in this topic.
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. If the server is installed in a rack cabinet, remove the server from the rack cabinet and place it on a flat,
clean, and static-protective surface. See the Rack Installation Instructions that comes with the server. If
the server is in tower form factor, lay the server on its side for easier operation.
3. Remove the server cover. See "Removing the server cover" on page 66.
4. Remove the cooling shroud. See "Removing the cooling shroud" on page 69.
5. Locate the memory slots on the system board. See "System board components" on page 41.
6. Remove any parts and disconnect any cables that might prevent your access to the memory slots.
A2
B1
5
2
CPU1 DIMM
A2
B1
B2
C1
C2
9
2
10
5
13
B2
C1
6
3
D1
D2
A1
A2
B1
6
14
3
11
D1
C2
7
4
CPU2 DIMM
B2
D1
C1
C2
4
12
7
15
8
.
Chapter 6
Replacing hardware
D2
8
D2
16
81

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