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Ch 1: Hardware
Hitachi VisionBase 8880R Server 15
Memory
The Memory Architecture of this system is a 4 way interleave. The memory needs to be installed in sets of 4. Do not
attempt to install memory sets before removing the board from the unit and properly grounding yourself, the
memory expansion board, and the memory sets to avoid ESD damage.
There are two memory expansion boards per system as a standard configuration. Each memory expansion board can
accommodate 2 sets of memory DIMMs, A and B. Each set has sixteen DIMMs. Thus there are total of four sets of
DIMMs per standard system. The memory configuration is 4 ways interleave and requires installation of
four DIMMs at a time. Base configuration comes with 1GB (128MB x 8 pcs) of memory using 128MB of DIMMs.
The table below summarizes the memory configurations:
Total Memory: 4.0GB
Total Memory: 3.5GB
Total Memory: 3.0GB
Total Memory: 2.5GB
Total Memory: 2.0GB
Total Memory: 1.5GB
Total Memory: 1.0GB
(Default Configuration)
Total Memory: 512MB
DIMM Socket Number:
DIMM Socket Sets:
Memory Expansion
Board Number
X
X
X
X
X
X
X
X
1
A
1
X
X
X
X
X
X
X
X
1
B
1
X
X
X
X
X
X
X
X
1
A
2
X
X
X
X
X
X
X
X
1
B
2
X
X
X
X
X
X
X
2
A
1
X
X
X
X
X
X
X
2
B
1
X
X
X
X
X
X
X
2
A
2
X
X
X
X
X
X
X
2
B
2
X
X
X
X
X
X
3
A
1
X
X
X
X
X
X
3
B
1
X
X
X
X
X
X
3
A
2
X
X
X
X
X
X
3
B
2
X
X
X
X
X
4
A
1
X
X
X
X
X
4
B
1
X
X
X
X
X
4
A
2
X
X
X
X
X
4
B
2
X
X
X
X
5
A
1
X
X
X
X
5
B
1
X
X
X
X
5
A
2
X
X
X
X
5
B
2
X
X
X
6
A
1
X
X
X
6
B
1
X
X
X
6
A
2
X
X
X
6
B
2
X
X
7
A
1
X
X
7
B
1
X
X
7
A
2
X
X
7
B
2
X
8
A
1
X
8
B
1
X
8
A
2
X
8
B
2