Fujitsu D2860 Technical Manual page 21

Features
Can run with differently rated memory modules and use the settings of the
slowest memory module on both channels.
The total physical memory available to the system is half of what is
populated.
Performance channel mode
1. Upgrade
Figure 5: Performance channel mode
In figure 5 you can see the slots that must be populated for a minimum config-
uration and for the first upgrade.
In this mode the maximum performance and capacity is available.
All three channels must be populated identically with regards to size and
organization.
Memory slot populations within a channel do not have to be identical but the
same memory slot location across three channels must be populated the
same way.
Can run with differently rated memory modules and use the settings of the
slowest memory module within a channel.
D2860 (BX920)
Memory Configuration (Spare Mode)
DIMM 1F
DIMM 1E
DIMM 1D
CPU 2
DIMM 2A
DIMM 1A
DIMM 2B
DIMM 1B
DIMM 2C
DIMM 1F
DIMM 1E
DIMM 1D
CPU 2
DIMM 2A
DIMM 1A
DIMM 2B
DIMM 1B
DIMM 2C
Technical Manual
Channel F
Channel E
Channel D
CPU 1
Channel A
Channel B
Channel C
DIMM 1C
Channel F
Channel E
Channel D
CPU 1
Channel A
Channel B
Channel C
DIMM 1C
Main memory
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