v
Mirrored channel mode:
In mirrored channel mode, channels 2 is not used. The
memory contents on channel 0 are duplicated in channel 1. The effective
memory available to the system is only half of that installed. The maximum
available memory (with 16 GB dual-rank DIMMs) is 48 GB for a
single-microprocessor system and 96 GB for a dual-microprocessor system.
The following table shows the order that memory DIMMs are installed to use a
mirrored channel mode.
Table 5. System memory configuration for mirrored channel mode
(1 microprocessor)
Installed
memory
DIMM socket
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
2
DIMMs
X
X
4
DIMMs
X
X
X
X
6
DIMMs
X
1
X
X
X
1
X
X
1.
Not supported when a quad-rank DIMM is installed.
Table 6. System memory configuration for mirrored channel mode
(2 microprocessors)
Installed
memory
DIMM socket
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
4
DIMMs
X
X
X
X
6
DIMMs
X
X
X
X
X
X
8
DIMMs
X
X
X
X
X
X
X
X
10
DIMMs
X
1
X
X
X
1
X
X
X
X
X
X
12
DIMMs
X
1
X
X
X
1
X
X
X
1
X
X
X
1
X
X
1.
Not supported when a quad-rank DIMM is installed.
Chapter 5. Removing and replacing blade server components
67
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