Products Owner's manual

80 • Hardware Upgrade and Replacement Procedures R-Series Data Center Products User’s Guide
Upgrading Memory
Only use ClearCube-supplied or ClearCube-approved memory modules.
Model R3040S
The R3040S provides six DDR3 DIMM sockets in six channels, as shown in
Figure 41. Each channel contains one DIMM socket:
Figure 41 DIMM Slots on R3040S Board
DIMMs for R3040S must meet the following requirements:
• Use DIMMs with the same part number by the same manufacturer (the same type,
size, speed, and/or rank).
• Use 240-pin DDR3 DIMMs.
• Use either registered DDR3 DIMMs (RDIMMs) or ECC unbuffered DDR3 DIMMs
(UDIMMs). The R3040S does not support the mixing of RDIMMs and UDIMMs.
• DDR3-800, DDR3-1066, or DDR3-1333.
Ensure the following when populating DIMMs:
• The minimal memory population is channel A. In this configuration, the system
operates in the Independent Channel Mode. Mirrored Channel Mode is not
possible.
CPU 1
Channel A
Channel B
Channel C
CPU 0
Channel D
Channel E
Channel F
CPU 1 Slots
CPU 0 Slots
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