Dell PER4402A Installation And Service Manual page 50

Table 21. Memory population rules (continued)
Processor Configuration
Mirror population order
Single rank sparing population
order
Multi rank sparing population
order
Dual processor Optimized (Independent
(Populate round channel) population order
robin starting with
processor1)
Mirroring population order
50 Installing and removing system components
Memory population
{1, 2, 3, 4, 5, 6}
1, 2, 3, 4, 5, 6, 7, 8, 9, 10
1, 2, 3, 4, 5, 6, 7, 8, 9, 10
A{1}, B{1}, A{2}, B{2}, A{3},
B{3}...
A{1, 2, 3, 4, 5, 6}, B{1, 2, 3, 4,
5, 6}
Memory population information
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 4 and 8
DIMM installations of single
processor.
○ For 4 DIMMs: A1, A2, A4, A5
○ For 8 DIMMs: A1, A2, A4,
A5, A7, A8, A9, A10
Mirroring is supported with 6
DIMM slots per processor.
Populate in this order, odd amount
allowed. Requires two ranks or
more per channel.
Populate in this order, odd amount
allowed. Requires three ranks or
more per channel.
● Odd amount of DIMM slots per
processor allowed.
● Odd number of DIMM
population 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 14
DIMM installations of dual
processor.
○ For 8 DIMMs: A1, A2, A4,
A5, B1, B2, B4, B5
○ For 14 DIMMs: A1, A2, A4,
A5, A7, A8, A9, A10, B1, B2,
B3, B4, B5, B6
Mirroring is supported with 6
DIMM slots per processor.