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Main memory
SDDC (Chipkill) is supported only for registered memory modules.
3.2.2
Module population
Figure 3: Assembly of the main memory in channels and slots (fitting rule for RDIMMs)
The arrows in
figure 3
I
If you are fitting UDIMMs, only two slots per channel may be filled. Slots
3A, 3B and 3C for CPU 1 and 3D, 3E and 3F for CPU 2 must remain
empty.
3.2.3
Main memory operating modes
There are four operating modes for the main memory:
– Independent channel mode (maximum population)
The populated memory of the six channels (A - F) can be used completely.
– Performance channel mode (maximum performance)
The populated memory of the six channels (A - F) can be used completely.
– Mirrored channel mode (maximum security)
22
DIMM 1C
DIMM 2C
DIMM 3C
DIMM 1B
DIMM 2B
DIMM 3B
DIMM 1A
DIMM 2A
DIMM 3A
CPU 1
show the direction of the population of the memory slots.
Technical Manual
DIMM 1F
DIMM 2F
DIMM 3F
DIMM 1E
DIMM 2E
DIMM 3E
DIMM 1D
DIMM 2D
DIMM 3D
CPU 2
D2952 (BX924 S2)
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