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RX200 S5 Options Guide 33
Main memory Equipping rules
Performance Channel Mode
– Requires identical modules on all channels of each bank for each CPU.
– RDIMM memory modules are supported.
Spare Channel Mode
– Requires identical modules on all channels of each bank for each CPU.
– One-third of the capacity is used as a spare area – this reduces the usable
memory for applications to two-thirds.
– RDIMM memory modules are supported.
Notes on equipping
– Equipping always starts at DIMM slot 1A.
– The minimum memory configuration is 1 DIMM per system board in
Independent Channel Mode.
– Memory modules with different clock rates may be mixed. The system
automatically adjusts itself to the lowest clock rate.
– The greater the capacity of the memory module, the further away from the
CPU it must be equipped. This applies for each channel.
– Single and dual ranked memory modules may be mixed. Quad ranked
memory modules, on the other hand, must be used exclusively.
– In mirror mode and in spare mode, memory modules of different capacities
may be mixed on a bank by bank basis (2x2, see figure "Equipping the main
memory in the different modes" on page 32).
– The assignment of the DIMM slots to the memory banks and channels is
imprinted on the system board next to the DIMM slots.