Table 8. Memory operating modes (continued)
Memory Operating Mode
Description
NOTE:
Memory configuration has to be of same size
DIMM, speed, and rank.
Optimizer Mode
This mode supports Single Device Data Correction (SDDC) only for memory modules that use x4 device width. It does not
impose any specific slot population requirements.
●
Dual processor: Populate the slots in round robin sequence starting with processor 1.
NOTE:
Processor 1 and processor 2 population should match.
Table 9. Memory population rules
Processor
Configuration
Memory population
Memory population information
Single processor
Optimizer (Independent
channel) population order
1, 2, 4, 5
Odd amount of DIMMs per
processor allowed.
Mirror population order
{1, 2, 3, 4, 5, 6}
Mirroring is supported with 6
DIMMs per processor
Single rank sparing population
order
1, 2, 3, 4, 5, 6, 7, 8
Populate in this order, odd amount
per processor allowed. Requires
two ranks or more per channel.
Multi rank sparing population
order
1, 2, 3, 4, 5, 6, 7, 8
Populate in this order, odd amount
per processor allowed. Requires
three ranks or more per channel.
Fault resilient population order
{1, 2, 3, 4, 5, 6}
Supported with 6 DIMMs per
processor.
Dual processor (Start
with processor1.
processor1 and
processor 2
population should
match)
Optimized (Independent
channel) population order
A{1}, B{1}, A{2}, B{2}, A{4},
B{4}, A{5}, B{5}
Odd amount of DIMMs per
processor allowed.
Mirroring population order
A{1,2,3,4,5,6},
B{1,2,3,4,5,6}
Mirroring is supported with 6
DIMMs per processor.
Single rank sparing population
order
A{1}, B{1}, A{2}, B{2}, A{3},
B{3}…
Populate in this order, odd amount
per processor allowed. Requires
two ranks or more per channel.
Multi rank spare population
order
A{1}, B{1}, A{2}, B{2}, A{3},
B{3}…
Populate in this order, odd amount
per processor allowed. Requires
three ranks or more per channel.
Fault resilient population order
A{1,2,3,4,5,6},
B{1,2,3,4,5,6}
Supported with 6 DIMMs per
processor.
Removing a memory module
Prerequisites
1. Follow the safety guidelines listed in the
.
2. Follow the procedure listed in the
Before working inside your system
3.
.
4.
.
WARNING:
The memory modules are hot to touch for some time after the system has been powered off. Allow
the memory modules to cool before handling them.
80
Installing and removing system components
