U41593-J-Z156-2-76 Options Guide 27
5Main memory
V CAUTION!
Observe the safety instructions in the chapter “Safety notes” on
page 13ff.
The system board supports up to 12 Gbytes of main memory. 6 slots (2 slots
form a memory bank) are provided for the main memory. Each memory bank is
equipped with two 512-Mbyte, 1-Gbyte or 2-Gbyte registered DDR333
(PC2700) memory modules.
A memory bank can optionally be configured as a hot-spare bank.
As memory bank 2 is already equipped either with 1-Gbyte, 2-Gbyte or
4-Gbyte of memory in the basic unit, the memory extensions can be performed
up to two times for memory banks 1 and 0.
ECC with memory scrubbing and with the Single Device Data Correction
(SDDC, Chipkill) function is standard.
5.1 Equipping rules
Figure 12: Structure of the main memory in memory banks and memory modules
– “Single-rank, registered” memory modules with x4 organization are
supported.
– Each memory bank is equipped with two memory modules with the same
capacity. Memory access takes place in 2-way interleaved mode.
Memory bank 0 - DIMM-0A
Memory bank 0 - DIMM-0B
Memory bank 1 - DIMM-1A
Memory bank 1 - DIMM-1B
Memory bank 2 - DIMM-2A
Memory bank 2 - DIMM-2B
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