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User Guide
Memory Mirroring
The memory mirroring feature writes the same data into two groups of DIMMs
corresponding with each other between memory branches (mirror set) to provide data
redundancy.
Gr oup#1
Group#2
#1
#2
Data 1
Data 1
Data 2
Data 2
Data 3
Data 3
Data 4
Data 4
physical capacity.
The memory mirroring feature can be used under the following conditions:
■ Install memory modules on four memory sockets configuring a mirror set.
■ All the installed memory modules should have the same capacity.
■ Run SETUP, change the parameters appropriately in the [Mirror] menu selected as
shown below, save the settings and exit from SETUP.
[Advanced], [Memory Configuration], [Memory RAS Feature], [Mirror]
■ Install memory modules in the following order:
Groups 1 and 2, Groups 3 and 4, Groups 5 and 6
The following mirroring cannot be configured:
■ Memory mirroring between different mirror sets.
E
E
E
Figure 91: Memory Mirroring
A: Motherboard
B: Memory Controller
C: Branch #0
D: Branch #1
E: Mirroring Pairs
Note: The operating system only recognizes half of the total
A
B
D
C
#1
#3
#5
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#2
#4
#6
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