Chapter 5. IBM BladeCenter HX5 201
Table 5-17 DIMM installation for memory mirroring: One processor
Table 5-18 lists the DIMM installation sequence for memory-mirroring mode when two
processors are installed.
Table 5-18 DIMM installation for memory mirroring: Two processors
DIMM placement: MAX5
Table 5-19 lists the DIMM installation sequence in the MAX5 for memory-mirroring mode.
Only power domains A and B are populated.
Table 5-19 DIMM installation for the MAX5 memory mirroring for IBM BladeCenter
Number of
processors
Number of
DIMMs
Processor 1 Processor 2
Buffer Buffer Buffer Buffer Buffer Buffer Buffer Buffer
DIMM 1
DIMM 2
DIMM 3
DIMM 4
DIMM 5
DIMM 6
DIMM 7
DIMM 8
DIMM 9
DIMM 10
DIMM 11
DIMM 12
DIMM 13
DIMM 14
DIMM 15
DIMM 16
18x x x x x x x x
Number of
processors
Number of
DIMMs
Processor 1 Processor 2
Buffer Buffer Buffer Buffer Buffer Buffer Buffer Buffer
DIMM 1
DIMM 2
DIMM 3
DIMM 4
DIMM 5
DIMM 6
DIMM 7
DIMM 8
DIMM 9
DIMM 10
DIMM 11
DIMM 12
DIMM 13
DIMM 14
DIMM 15
DIMM 16
18x x x x x x x x
116
x x x x x x x x x x x x x x x x
Number of DIMMs
Power domain A Domain C (½) Power domain B Domain C (½)
Buffer Buffer Buffer Buffer Buffer Buffer
DIMM 1
DIMM 2
DIMM 3
DIMM 4
DIMM 5
DIMM 6
DIMM 7
DIMM 8
DIMM 9
DIMM 10
DIMM 11
DIMM 12
DIMM 13
DIMM 14
DIMM 15
DIMM 16
DIMM 17
DIMM 18
DIMM 19
DIMM 20
DIMM 21
DIMM 22
DIMM 23
DIMM 24
4 x x x x
8 x x x x x x x x
12 x x x x x x x x x x x x
16 x x x x x x x x x x x x x x x x
Domain C must be empty: Memory mirroring is only supported using two domains. You
must remove all DIMMs from Domain C. If there is memory in Domain C, you get the
following error in the AMM logs and all memory in the MAX5 is disabled:
“Group 1, (memory device 1-40) (All DIMMs) memory configuration error”
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