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U41604-Z156-1-76 Options Guide 21
5Main memory
V CAUTION!
Observe the safety instructions in the chapter “Safety notes” on page 7
et seqq. .
The system board supports up to 4 Gbytes of main memory. Four slots (2 slots
form a memory bank) are provided for the main memory. Each memory bank
can be equipped with 256 Mbyte, 512 Mbyte or 1 Gbyte unbuffered DDR I
memory modules.
5.1 Equipping rules
Figure 12: Structure of the main memory in memory banks and memory modules
– Each memory bank is equipped with two memory modules with the same
capacity. Memory access takes place in 2-way interleaved mode.
– The memory module capacity can differ for the various memory banks: e.g.
memory bank 2A/2B can be equipped with two 512 Mbyte memory modules,
and memory bank 1A/1B with two 1 Gbyte memory modules.
DIMM 1A
DIMM 2A
DIMM 1B
DIMM 2B