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Memory Mirroring
The Memory Mirroring feature designates a channel, two DDR2 DIMM
slots, as spare memory and all system memory are sent to both mirrors
by the Intel E7520 MCH chipset. When an uncorrectable error occurs
from the Primary mirror, the chipset will automatically replace the data
in the defective slot with data from the Secondary mirror.
Below table list the suggested memory population for memory
mirroring:
Removing a DIMM
Before you can install a new DIMM in a socket, first remove any
previously installed DIMM from that socket.
1 GB 1 GB 1 GB 1 GB 1 GB
(Spare)
1 GB
(Spare)
6 GB 4 GB
2 GB 2 GB 2 GB 2 GB 2 GB
(Spare)
2 GB
(Spare)
12 GB 8 GB
512 MB 512 MB 512 MB 512 MB 512 MB 512 MB 512 MB
(Spare)
512 MB
(Spare)
4 GB 3 GB
1 GB 1 GB 1 GB 1 GB 1 GB 1 GB 1 GB
(Spare)
1 GB
(Spare)
8 GB 6 GB
2 GB 2 GB 2 GB 2 GB 2 GB 2 GB 2 GB
(Spare)
2 GB
(Spare)
16 GB 12 GB
DIMM
1B
DIMM
1A
DIMM
2B
DIMM
2A
DIMM
3B
DIMM
3A
DIMM
4B
DIMM
4A
Total Memory
Physical
Memory
Detected
by OS
512 MB 512 MB 512 MB
(Mirror)
512 MB
(Mirror)
2 GB 1 GB
1 GB 1 GB 1 GB
(Mirror)
1 GB
(Mirror)
4 GB 2 GB
2 GB 2 GB 2 GB
(Mirror)
2 GB
(Mirror)
8 GB 4 GB
512 MB 512 MB 512 MB
(Mirror)
512 MB
(Mirror)
512 MB 512 MB 512 MB
(Mirror)
512 MB
(Mirror)
4 GB 2 GB
1 GB 1 GB 1 GB
(Mirror)
1 GB
(Mirror)
1 GB 1 GB 1 GB
(Mirror)
1 GB
(Mirror)
8 GB 4 GB
2 GB 2 GB 2 GB
(Mirror)
2 GB
(Mirror)
2 GB 2 GB 2 GB
(Mirror)
2 GB
(Mirror)
16 GB 8 GB
DIMM
1B
DIMM
1A
DIMM
2B
DIMM
2A
DIMM
3B
DIMM
3A
DIMM
4B
DIMM
4A
Total Memory
Physical
Memory
Detected
by OS