Fujitsu PRIMERGY BX922 S2 Options Manual page 32

Main memory
Module population
The memory modules are organized in 3 channels (A - F) per CPU. Both CPUs
have 3 channels with 2 slots each (1-2). The channels A - C are controlled by
CPU 1 and the channels D - F are controlled by CPU 2.
Channel C
Channel B
Channel A
CPU 1
Figure 11: Main memory allocation
There are four modes of operation for the main memory:
Independent Channel Mode (maximum memory configuration)
The populated memory can be used in full (maximum 192 GB).
Mirrored Channel Mode (maximum security)
Only the populated memory in the 2 channels A and D (see
page 32) can be used (maximum 64 GB). The channels B and E are for
failure protection purposes only. They contain the mirrored data from
channels A and D. Channels C and F are not used.
32
DIMM 1C
DIMM 2C
DIMM 1B
DIMM 2B
DIMM 1A
DIMM 2A
Options Guide
DIMM 2D
Channel D
DIMM 1D
DIMM 2E
Channel E
DIMM 1E
DIMM 2F
Channel F
DIMM 1F
Front
CPU 2
figure 11 on
BX922 S2