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32 Options Guide RX200 S5
Equipping rules Main memory
© cognitas. Gesellschft für Technik-Dokumentation mbH 2009 Pfad: W:\Anwendungsdaten\FCT\tim_local\work\PICHOL\OBJ_DOKU-4103-001.fm
6.1 Equipping rules
The 6 slots for each CPU for the main memory are divided into two banks (bank
1 and bank 2) with 3 channels each (A, B and C).
Figure 12: Equipping the main memory in the different modes
Independent Channel Mode
– Allows all channels to be equipped in any order.
– Works with DIMMs of different clock frequencies and sets them at the lowest
frequency.
– Works with both UDIMM memory modules and RDIMM memory modules.
Mirrored Channel Mode
– Requires identical modules on channels A & B (1st CPU) and on C & D (2nd
CPU).
– Half of the capacity is used for mirroring – the available memory for applica-
tions amounts to just half of the installed memory.
– Channel C (1st CPU) or channel F (2nd CPU) are not available in this mode.
– RDIMM memory modules are supported.
CPU2
CPU 1
DIMM 1C
DIMM 1B
DIMM 1A
DIMM 2B
DIMM 2A
DIMM 2C
DIMM 2D
DIMM 2E
DIMM 2F
DIMM 1E
DIMM 1F
DIMM 1D
CPU1
CPU 2
Independent
Channel Mode
CPU2
CPU 1
DIMM 1C
DIMM 1B
DIMM 1A
DIMM 2B
DIMM 2A
DIMM 2C
DIMM 2D
DIMM 2E
DIMM 2F
DIMM 1E
DIMM 1F
DIMM 1D
CPU1
CPU 2
Mirrored
Channel Mode
CPU2
CPU 1
DIMM 1C
DIMM 1B
DIMM 1A
DIMM 2B
DIMM 2A
DIMM 2C
DIMM 2D
DIMM 2E
DIMM 2F
DIMM 1E
DIMM 1F
DIMM 1D
CPU1
CPU 2
Performance
Channel Mode
CPU2
CPU 1
DIMM 1C
DIMM 1B
DIMM 1A
DIMM 2B
DIMM 2A
DIMM 2C
DIMM 2D
DIMM 2E
DIMM 2F
DIMM 1E
DIMM 1F
DIMM 1D
CPU1
CPU 2
Spare
Channel Mode
Legend:
required
required, if 2nd CPU is configured
optional, same type in bank per CPU
optional, any type
not used