Cisco UCS C460 M2 High-Performance Rack-Mount Server
CONFIGURING the SERVER
15
Choose Memory Riser Boards
You may choose four memory riser boards for a two-CPU system or eight memory riser boards for
a four-CPU system.
Approved Configurations
(1) Two-CPU System
■
Choose four memory riser boards from
Table 4
.
(1) Four-CPU System
■
Choose eight memory riser boards from
Table 4
.
Caveats
■
You should order enough risers with enough sockets to accommodate your maximum
forseeable memory needs.
Choose DIMMs and Memory Mirroring
Select the memory configuration and whether or not you want the memory mirroring option.
The available memory DIMMs and mirroring option are listed in
Table 5
.
Table 4 Available Memory Riser Boards
Product ID (PID)
PID Description
Max DIMMs per Riser
Riser Board Options
UCSC-MRB-002-C460
Memory riser board for C460 M2 server only
8
NOTE:
When memory mirroring is enabled, the memory subsystem simultaneously
writes identical data to two channels. If a memory read from one of the channels
returns incorrect data due to an uncorrectable memory error, the system
automatically retrieves the data from the other channel. A transient or soft error in
one channel does not affect the mirrored data, and operation continues unless there
is a simultaneous error in exactly the same location on a DIMM and its mirrored
DIMM. Memory mirroring reduces the amount of memory available to the operating
system by 50% because only one of the two populated channels provides data.
