TX200 S5 Options Guide 31
Main memory Equipping rules
– The minimum memory configuration is 1 DIMM per CPU in the Independent
Channel Mode.
– Memory modules with different clock frequencies may be mixed. The system
automatically adjusts itself to the lowest clock frequency.
– Single and dual ranked memory modules may be mixed.
– Memory modules of different capacities may be mixed on a bank by bank
basis (2x2) in mirror mode and in spare mode.
– The assignment of DIMM slots to the memory banks and channels is
imprinted on the system board.
– Install memory modules within a channel in descending order of capacity:
higher capacity in the black slot; lower capacity in the blue slot.
There are four modes of operation for the main memory:
– Independent Channel Mode
– Mirrored Channel Mode
– Performance Channel Mode
– Spare Channel Mode
Possible equipping in the different modes:
Figure 13: Possible equipping in the different modes
Legend:
required
required, if 2nd CPU is configured
optional, same type in bank per CPU
optional, any type
not usable
CPU 2
CPU 1
CPU 2
DIMM 1F
DIMM 1E
DIMM 1D
DIMM 2E
DIMM 2D
DIMM 2F
Independent
Channel Mode
Mirrored
Channel Mode
Performance
Channel Mode
Spare
Channel Mode
CPU 1
DIMM 1A
DIMM 2A
DIMM 2B
DIMM 2C
DIMM 1C
DIMM 1B
DIMM 1F
DIMM 1E
DIMM 1D
DIMM 2E
DIMM 2D
DIMM 2F
DIMM 1A
DIMM 2A
DIMM 2B
DIMM 2C
DIMM 1C
DIMM 1B
* Mirror
*
*
*
*
CPU 1
CPU 2
DIMM 1F
DIMM 1E
DIMM 1D
DIMM 2E
DIMM 2D
DIMM 2F
DIMM 1A
DIMM 2A
DIMM 2B
DIMM 2C
DIMM 1C
DIMM 1B
CPU 1
CPU 2
DIMM 1F
DIMM 1E
DIMM 1D
DIMM 2E
DIMM 2D
DIMM 2F
DIMM 1A
DIMM 2A
DIMM 2B
DIMM 2C
DIMM 1C
DIMM 1B
* Spare
*
*
*
*
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