Datasheet

Cisco UCS B440 M2 Blade Server
CONFIGURING the SERVER
9
STEP 3 CHOOSE MEMORY
The standard memory features are:
■ DIMMs
— Maximum memory bandwidth: 800 MHz for E7-4807, 1066 MHz for all other CPUs
— Ranks per DIMM: 2 or 4
— Operational voltage: 1.5 or 1.35 V
— Registered DIMM (RDIMM)
— Mirroring option
— Advanced error correcting code (ECC)
— Double device data correction (DDDC)
■ Each CPU controls four DDR3 channels. Each of the channels controls a matched pair of
DIMMs. The maximum number of DIMMs that can be installed per CPU is 8 (4 DIMM kits). See
Figure 3.
NOTE: DDDC support applies to x4 DIMMs only.
NOTE: Memory mirroring is supported and settable using the UCSM Service Profile
“Memory RAS Configuration” setting.