Fujitsu D3030 Tehnical Manual page 25

Mirrored Channel Mode
In this mode, channels A and B of CPU 1 and channels D and E of CPU 2 form
exact copies of each other.
Channel A and channel B of CPU1 must be fitted identically and channel D
and channel E of CPU2 must be fitted identically (channel C and F cannot
be used in Mirrored Channel Mode since the "counterpart" is missing).
Memory modules with different clock frequencies and different speed ratings
can be used within a channel, whereby the settings of the slowest memory
module are used for the channel.
In Mirrored Channel Mode, the total main memory available in the system is
half as large as the installed memory.
Channel 2 Slot 0
Channel 1 Slot 0
Slot 0
Channel 0
Channel 0
Channel 1
Channel 2
Figure 4: Fitting in Mirrored Channel Mode
D3030 (BX920 S2)
CPU 2
Slot 1
Slot 0
Slot 1
Slot 0
Slot 1
Slot 0
Technical Manual
Main memory
DIMM 1F empty
DIMM 1E 1.
1.
DIMM 1D
CPU 1
DIMM 2A
DIMM 1A
DIMM 2B
DIMM 1B
DIMM 2C
DIMM 1C
Front
2.
1.
2.
1.
empty
empty
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