Dell PowerEdge C6220 - Manual (Page 89)

Using the System Setup Program | 89
Option Description
is disabled. With memory sparing enabled,
the system memory available to the
operating system is reduced by one rank per
channel.
 Mirror Mode: Enables memory mirroring.

Advanced ECC Mode: Controllers are joined
in 128-bit mode running multi-bit advanced
ECC.
Demand Scrubbing
(Enabled default) To disable or enable dram scrubbing is the ability to
write corrected data back to the memory once a
correctable error is detected on read transaction.
Patrol Scrubbing
(Enabled default) To disable or enable patrol scrubbing proactively
searching the system memory, repairing correctable
error.
Memory Operating Voltage
(Auto default) Auto – this setting indicates the memory operating
voltage will be set automatically by the memory
initialization code and depends upon the installed
DIMM’s capability and the memory configuration of
the system. This is the default setting and will set the
Memory Operating Voltage to the POR voltage.
1.5 V indicates all DIMMs in the system are operating
at 1.5 volts.
1.35 V indicates all DIMMs in the system are operating
at 1.35 volts.
1.25 V indicates all DIMMs in the system are operating
at 1.25 volts.
NOTE: BIOS will auto restrict selection if DIMM does not
support low voltage.
NUMA Support
(Enabled default) Disabled – for BIOS setup to allow users enable the
node interleave option. This is for NUMA systems that
allow memory interleaving across all processor nodes.
Enabled – for BIOS setup to allow users disable the
node interleave option. This is for NUMA systems that
allows memory interleaving across all processor nodes.