Memory Ras Features; Table 10. Memory Speed Capabilities; Table 11. Memory Ras Features - Dell PowerEdge R620 Technical Manual

Table 10 illustrates the maximum achievable speed of the Intel Xeon processor E5-2600 and
E5-2600 v2 product families based on memory loads.

Green boxes are defaults for performance per watt

White boxes (with lower voltage) can save power but will run at slower speeds

White boxes (with higher voltage) can be custom configured in the bios
DIMM
type
RDIMM
RDIMM
UDIMM
RDIMM
LRDIMM
LRDIMM
*For PowerEdge T620, the speed will clock down to 1066MT/s.

Memory RAS features

Reliability, availability and serviceability (RAS) features help keep the system online and operational
without significant impact to performance, and can decrease data loss and crashing due to errors.
RAS aids in rapid, accurate diagnosis of faults which require service. Table 11 describes the RAS
features supported on the R620.
Feature
Dense configuration
optimized profile
Memory demand and
patrol scrubbing
Recovery from single
DRAM device failure
Failed DIMM isolation
21 PowerEdge R620 Technical Guide
Table 10. Memory speed capabilities
Intel Xeon processor E5-2600 and E5-2600 v2
DIMM
1 DPC
rank
1.35V
1R/2R
1R/2R 1600
1R/2R 1600
4R 1066
4R
4R 1600
Table 11. Memory RAS features
Description
Increased memory reliability can result from this selectable platform profile, which
adjusts parameters to reduce faults regarding refresh rates, speed, temperature
and voltage.
Demand scrubbing is the ability to write corrected data back to the memory once
a correctable error is detected on a read transaction.
Patrol scrubbing proactively searches the system memory, repairing correctable
errors.
Recovery from Single DRAM Device Failure (SDDC) provides error checking and
correction that protects against any single memory chip failure as well as multi-bit
errors from any portion of a single memory chip.
This feature provides the ability to identify a specific failing DIMM channel pair,
thereby enabling the user to replace only the failed DIMM pair.
product families
DIMMs per channel (DPC)
2 DPC
1.5V 1.35V 1.5V
1866 1866
1600
1600 1600
1600
1600 1600
1066
1066
1333
1600
1866
1600 1600 1600
3 DPC
1.35V 1.5V
1333
1066 1333
1333
*
1066 1333
*