Datasheet

Cisco UCS C460 M4 High-Performance Rack-Mount Server
CONFIGURING the SERVER
13
STEP 3 CHOOSE MEMORY
The standard memory features are:
■ Plug-In Memory Riser Boards
— Up to 12 DIMMs per riser board
— Riser boards plug vertically into the motherboard
— Four riser boards for 2-CPU option
— Eight riser boards for 4-CPU option
■ DIMMs
— Clock speed: 1600 MHz
— Ranks per DIMM: 2, 4, or 8
— Operational voltage: 1.5 or 1.35 V
— Registered DIMM (RDIMM) or load-reduced registered DIMM (LRDIMM)
■ Each CPU controls four serial memory interface 2 (SMI-2) channels. Memory buffers on the
memory risers convert each SMI channel into two DDR3 subchannels. There are two memory
risers for each CPU. Memory is organized as three DIMMs per subchannel, as shown in
Figure 4.