166
Upgrade and Maintenance Manual
BX920
S4
Main memory
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1.
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8.1.1.2
Independant Channel mode
I
All empty DIMM sockets must be fitted with dummy DIMMs. Once the
DIMM sockets have been fitted with DIMMs and dummy DIMMs, the air
cowl must be laid over the DIMM slots.
Numbering of DIMMs indicates the fitting sequence.
Example: If 6 DIMM modules are to be fitted with 2 CPUs installed, the
follow the sequence 1A, 1D, 1B, 1E, 1C, 1F.
CPU
CPU 1
CPU 2
Channel
A
B
C
F
E
D
Slot descriptor
1A
2A
1B
2B
1C
2C
2F
1F
2E
1E
2D
1D
# DIMMS
1 CPU populated
1
1
2
1
2
3
1
2
3
4
1
4
2
3
5
1
4
2
5
3
6
1
4
2
5
3
6
2 CPU populated
2
1
2
3
1
3
2
4
1
3
4
2
5
1
3
5
4
2
6
1
3
5
6
4
2
7
1
7
3
5
6
4
2
8
1
7
3
5
6
4
8
2
9
1
7
3
9
5
6
4
8
2
10
1
7
3
9
5
6
10
4
8
2
11
1
7
3
9
5
11
6
10
4
8
2
12
1
7
3
9
5
11
12
6
10
4
8
2
