Memory - Dell PowerEdge R620 Technical Manual

More memory options are available than ever before with the Dell™ PowerEdge™ R620—greater
capacities, higher frequencies, and more flexibility. The R620 supports up to 768GB of memory
(24 DIMMs) and speeds up to 1600 MT/s, providing high performance in a variety of applications.
High memory density means there is no compromise when it comes to virtualization.
Increase your uptime and reduce data loss, due to Dell's focus on reliability, availability, and
serviceability (RAS) features. RAS aids in the rapid and accurate diagnosis of faults which require
service, increasing your memory reliability. System uptime is reinforced with RAS features like
memory mirroring, sparing, and many others.
In addition to supporting existing unbuffered DIMMs (UDIMM) and registered DIMMs (RDIMM), the
R620 supports load reduced DIMMs (LRDIMM), which use a buffer to reduce memory loading and
provide greater density, allowing for the maximum platform memory capacity.
Table 8 lists the memory technologies supported by the R620.
Feature
Register
Buffer
Frequencies
Ranks supported
Capacity per DIMM
Maximum DIMMS per channel
DRAM technology
Temperature sensor
ECC
SDDC
Address parity
UDIMM RDIMM
No Yes
No No
800, 1066, 1333, or 800, 1066, 1333, or
1600MT/s 1600MT/s
1 or 2 1, 2, or 4
2 or 4GB 2, 4, 8, 16, or 32GB
2 3
x8 x4 or x8
Yes Yes
Yes Yes
Yes (with advanced
Yes
ECC mode)
Yes Yes
LRDIMM
Yes
Yes
1066 or 1333MT/s
4
32GB
3
x4
Yes
Yes
Yes
Yes