Lenovo ThinkAgile VX7820 User Manual page 186

If the system board is already installed in the server:
1. If the front cover is installed, remove it. See "Remove the front cover" on page 131.
2. Remove the compute tray with the system board where you are installing the memory module. See
"Remove a compute tray" on page 115.
3. If you are installing a memory module in the lower compute system board, remove the upper system
board or system board filler. See "Remove a system board" on page 109.
Note: The same procedure is used to install memory modules and memory module fillers.
Figure 97. Memory module locations
Table 34. Memory module locations on each system board
DIMM number
System board 1
(lower board, lower
tray) DIMM number
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
User Guide for ThinkAgile VX7820 Appliance, ThinkAgile VX 4-Socket 4U Certified Node
176
System board 2 System board 3
(upper board, lower (lower board, upper
tray) DIMM number tray) DIMM number
25 49
26 50
27 51
28 52
29 53
30 54
31 55
32 56
33 57
34 58
35 59
36 60
37 61
38 62
39 63
40 64
System board 4
(upper board, upper
tray) DIMM number
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88