Cisco UCS C260 M2 User Manual page 12

CONFIGURING the SERVER
(3) Eight Four-Socket Risers
32 DIMMs capacity total
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(4) Sixteen Four-Socket Risers
64 DIMMs capacity total
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Caveats
Each CPU controls eight Millbrook-2 DDR3 channels. Memory risers must be installed in pairs
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on paired DDR3 channels. See
You cannot mix two- and four-socket risers in a C260 M2 system. You must choose either all
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two-socket risers or all four-socket risers.
You should order enough risers with enough sockets to accommodate your maximum
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forseeable memory needs.
The minimum riser configuration is one pair of risers for each CPU. Each riser for a CPU must
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contain an equal number of matched DIMMs. Each CPU can boot and run from a single
matched pair of risers.
Choose DIMMs
DIMMs are orderable as kits, with two DIMMs per kit. Choose the desired number of DIMMs. The
available memory DIMMs are listed in
Table 5 Available DDR3 DIMM Kits
Product ID (PID)
DIMM Options
UCS-MR-2X041RX-C
UCS-MR-2X082RX-C
UCS-MR-2X164RX-D
Approved Configurations
(1) Two-Socket Risers
Each two-socket riser can accommodate two DIMMs.
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CPUs and DIMMs on page 46
PID Description
8GB DDR3-1333MHz RDIMM/PC3-10600/2x4GB Kit
16GB DDR3-1333MHz RDIMM/PC3-10600/2x8GB Kit
32GB DIMM Kit (2x16GB)
If you ordered eight two-socket risers, you can order a minimum of two DIMM kits
(four DIMMs) and a maximum of eight DIMM kits (16 DIMMs).
If you ordered sixteen two-socket risers, you can order a minimum of two DIMM kits
(four DIMMs) and a maximum of sixteen DIMM kits (32 DIMMs).
Table 5.
Cisco UCS C260 M2 High-Performance Rack-Mount Server
for details.
Voltage
1.35
1.35
1.35
Ranks/
DIMM
1
2
4