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Chapter 2 Preparations
When CPU1 and CPU2 are mounted
DIMM slot
number
1
2
2 DIMM
3 DIMM
4 DIMM
5 DIMM
6 DIMM
7 DIMM
8 DIMM
9 DIMM
10 DIMM
11 DIMM
12 DIMM 12
13 DIMM 12
14 DIMM 12
15 DIMM 12
16 DIMM
17 DIMM
18 DIMM 12
19 DIMM 12
20 DIMM 12
21 DIMM 12
22 DIMM 12
23 DIMM 12
24 DIMM 12
24
- Notice for the combination of DIMM
When more than one kinds of DIMM is combined, install them in the order from the following list to the installation
order on the above table.
(High priority) N8102-724 > N8102-723 > N8102-722 > N8102-721 > N8102-720
DIMMs cannot be mixed within the server depending on the combination. They can be mixed only in the
following combinations.
N Code
N8102-720, 8GB/R, 1R
N8102-721, 16GB/R, 1R
N8102-722, 16GB/R, 2R
N8102-723, 32GB/R, 2R
N8102-724, 64GB/R, 2R
N8102-725, 64GB/LR, 4R
N8102-726, 128GB/3DS, 8R
: Allowed to be install together
CPU2
3
4
5
6
7
8
9 10 11 12
2
2
2
2
2
2
8
6
2
8
6
2
10
8
2
10
8
2
10
8
2
10
8
2
10
8
14
2
10
8
14
2
8
16
6
14 10
2
12
8
16
6
14 10
2
12
10
8
14
2
16
10
8
14
2
16
10
20
8
18 14
2
16
10
20
8
18 14
2
16
10
22
8
20 14
2
16
10
22
8
20 14
2
16
10
22
8
20 14
2
16
Important
If the number of DIMMs mounted is 9, 10, 11, 13, 14, 15, 17, 18, 19, 20, 21, 22,
or 23, Information Message 510 is displayed in the "Unbalanced, not
recommended" state during POST. This does not require any action.
510 - The installed number of DIMMs on one or more processors results in
an unbalanced memory configuration across memory controllers. This may
result in non-optimal memory
720
Express5800/R120h-2M (3rd-Gen) User's Guide
1
2
3
4
4
4
4
6
4
6
7
4
7
4
9
4
6
9
4
6
11
9
4
6
11
9
4
6
11
9
4
6
11
9
4
6
7
15
4
7
15
4
11
9
4
18
6
11
9
4
18
6
11
9
19
4
6
11
9
19
4
6
11
9
21
4
18
6
11
9
21
4
18
6
11
23
9
21
4
18
6
11
23
9
21
N8102-
721
722
723
1. Installing Internal Optional Devices
CPU1
5
6
7
8
9 10 11 12
1
1
3
1
3
1
3
5
1
3
5
5
1
3
5
1
3
7
1
3
5
7
1
3
5
7
1
3
5
7
1
3
5
7
13
1
3
5
7
13
1
3
5
5
13 9
1
11
3
5
13 9
1
11
3
7
13
1
15
3
17
5
7
13
1
15
3
17
5
7
17 13
1
15
3
5
7
17 13
1
15
3
5
7
19 13
1
15
3
17
5
7
19 13
1
15
3
17
5
7
19 13
1
15
3
17
5
7
19 13
1
15
3
17
5
(Low priority)
724
725
726
77
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