Fujitsu PRIMERGY RX300 S7 Upgrade And Maintenance Manual page 273

– Populate modules with higher capacities first.
– Within a channel, populate modules in descending order of capacity.
– If memory modules with different speeds are used, the lowest clock rate
applies for all DIMMs.
Regardless of the mode, all DIMMs will run at the highest common
frequency that is allowed by the SPD Data of the DIMMs and the maximum
speed of the selected configuration.
– Mixing UDIMMs, RDIMMs or LRDIMMs is not allowed.
– Mixing ECC and non-ECC DIMMs is not allowed.
– Mixing of quad-rank DIMMs in one channel and three DIMMs in another
channel (3DPC) on the same CPU is not allowed.
DIMM 1G
DIMM 1H
DIMM 3F
DIMM 3E
Figure 141: Memory overview
RX300 S7
DIMM 2G
DIMM 3G
DIMM 2H
DIMM 3H
CPU 2
DIMM 2F
DIMM 1F
DIMM 2E
DIMM 1E
Upgrade and Maintenance Manual
Main memory
DIMM 1A
DIMM 2A
DIMM 3A
DIMM 1B
DIMM 2B
DIMM 3B
CPU 1
DIMM 3D
DIMM 2D
DIMM 1D
DIMM 3C
DIMM 2C
DIMM 1C
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