Cisco Cisco UCS C3260 Rack Server データシート

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 for DDR3 DIMMs and 1866 MHz for DDR4 DIMMS

— 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 

.