Dell EMC E39S Series Installation And Service Manual page 98

Table 55. Memory population rules (continued)
Processor Configuration
Mirror population order
Single rank sparing
population order
Multi rank sparing
population order
Fault resilient population
order
Dual processor (Start Optimized (Independent
with processor1. channel) population order
processor1 and
processor 2 population
should match)
Mirroring population order
Single rank sparing
population order
Multi rank sparing
population order
98 Installing and removing system components
Memory population
{1, 2, 3, 4, 5, 6} {7, 8, 9, 10,
11, 12}
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
12
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
12
{1, 2, 3, 4, 5, 6} {7, 8, 9, 10,
11, 12}
A{1}, B{1},
A{2}, B{2},
A{3}, B{3},
A{4}, B{4},
A{5}, B{5},
A{6}, B{6}
A{1, 2, 3, 4, 5, 6},
B{1, 2, 3, 4, 5, 6},
A{7, 8, 9, 10, 11, 12},
B{7, 8, 9, 10, 11, 12}
A{1}, B{1},
A{2}, B{2},
A{3}, B{3},
A{4}, B{4},
A{5}, B{5},
A{6}, B{6}
A{1}, B{1},
A{2}, B{2},
A{3}, B{3},
Memory population information
configurations, which in turn will result
in performance loss. It is recommended
to populate all memory channels
identically with identical DIMMs for
best performance.
• Optimizer population order is not traditional for
4 and 8 DIMM installations of single processor.
○ For 4 DIMMs: A1, A2, A4, A5
○ For 8 DIMMs: A1, A2, A4, A5, A7, A8, A10,
A11
Mirroring is supported with 6 or 12 DIMMs per
processor.
• DIMMs must be populated in the order
specified.
• Requires two ranks or more per channel.
• DIMMs must be populated in the order
specified.
• Requires three ranks or more per channel.
Supported with 6 or 12 DIMMs per processor.
Odd number of DIMM population per processor is
allowed.
NOTE: Odd number of DIMMs will result in
unbalanced memory configurations, which
in turn will result in performance loss. It is
recommended to populate all memory
channels identically with identical DIMMs
for best performance.
Optimizer population order is not traditional for 8
and 16 DIMMs installations for dual processor.
• For 8 DIMMs: A1, A2, A4, A5, B1, B2, B4, B5
• For 16 DIMMs:
A1, A2, A4, A5, A7, A8, A10, A11
B1, B2, B4, B5, B7, B8, B10, B11
Mirroring is supported with 6 or 12 DIMMs per
processor.
• DIMMs must be populated in the order
specified.
• Requires two ranks or more per channel.
• DIMMs must be populated in the order
specified.
• Requires three ranks or more per channel.