Fujitsu D2786, Техническое руководство

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18 Technical Manual
D2786 (RX200 S5)
Main memory Features
Module population
– Minimum main memory configuration is 1 DIMM with Independent Channel
Mode.
– It is possible to mix memory modules with different clock rates. The lowest
clock rate will be applied to the system.
– Single and dual-rank memory modules can be mixed, quad-rank memory
modules have to be used exclusively.
– Mix of modules with different capacity is possible bank-wise (2x2) with Mirror
or Spare Mode.
– The assignment of the DIMM slots to the banks and channels is printed on
the system board.
Possible population in different modes:
Figure 3: Possible population in different modes
Independent Channel Mode
– Allows population of all channels in any order. Related to the channels (A-F)
DIMM1 must be populated first.
– Works with DIMMs of different clock rates and applies the lowest clock rate.
– Works with UDIMMs as well as RDIMMs.
CPU 1
CPU 2 CPU 2
CPU 2 CPU 2
CPU 1
CPU 1 CPU 1
DIMM 1C
DIMM 1B
DIMM 1A
DIMM 2B
DIMM 2A
DIMM 2C
DIMM 2D
DIMM 2E
DIMM 2F
DIMM 1E
DIMM 1F
DIMM 1D
I ndependent
C hannel M ode
DIMM 1C
DIMM 1B
DIMM 1A
DIMM 2B
DIMM 2A
DIMM 2C
DIMM 2D
DIMM 2E
DIMM 2F
DIMM 1E
DIMM 1F
DIMM 1D
M irrored
C hannel M ode
DIMM 1C
DIMM 1B
DIMM 1A
DIMM 2B
DIMM 2A
DIMM 2C
DIMM 2D
DIMM 2E
DIMM 2F
DIMM 1E
DIMM 1F
DIMM 1D
P erformance
C hannel M ode
DIMM 1C
DIMM 1B
DIMM 1A
DIMM 2B
DIMM 2A
DIMM 2C
DIMM 2D
DIMM 2E
DIMM 2F
DIMM 1E
DIMM 1F
DIMM 1D
Spare
C hannel M ode
Legend:
required
required,
if 2 nd CPU is configured
optional, same type in bank per CPU
optional, any type
not used