Dell PowerEdge T440 EMC Installation and Service Manual - Page 101

Table 39. Memory population rules, turn will result

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NOTE: Processor 1 and processor 2 population should match. Table 39. Memory population rules Processor Configuration Single processor Optimizer (Independent channel) population order Memory population 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 Mirror population order {1, 2, 3, 4, 5, 6} Single rank sparing population order 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 Multi rank sparing population order 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 Dual processor (Populate round robin starting with processor1) Optimized (Independent channel) population order A{1}, B{1}, A{2}, B{2}, A{3}, B{3}... Memory population information • Populate in this order, odd amount 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 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 Installing and removing system components 101

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NOTE:
Processor 1 and processor 2 population should match.
Table 39. Memory population rules
Processor
Configuration
Memory population
Memory population information
Single processor
Optimizer (Independent channel)
population order
1, 2, 3, 4, 5, 6, 7, 8, 9, 10
•
Populate in this order, odd
amount 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 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
Mirror population order
{1, 2, 3, 4, 5, 6}
Mirroring is supported with 6 DIMM
slots per processor.
Single rank sparing population
order
1, 2, 3, 4, 5, 6, 7, 8, 9, 10
Populate in this order, odd amount
allowed. Requires two ranks or more
per channel.
Multi rank sparing population order
1, 2, 3, 4, 5, 6, 7, 8, 9, 10
Populate in this order, odd amount
allowed. Requires three ranks or more
per channel.
Dual processor
(Populate round robin
starting with
processor1)
Optimized (Independent channel)
population order
A{1}, B{1}, A{2}, B{2}, A{3},
B{3}...
•
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
Installing and removing system components
101