Dell PowerEdge T620 Technical Guide - Page 20

Feature, UDIMM, RDIMM, LRDIMM

Page 20 highlights

More memory options are available than ever before with the Dell PowerEdge T620-greater capacities, higher frequencies, and more flexibility. The T620 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 (UDIMMs) and registered DIMMs (RDIMMs), the T620 supports load reduced DIMMs (LRDIMMs), 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 T620. Feature UDIMM RDIMM LRDIMM Register Buffer Frequencies* No No 800, 1066, 1333, or 1600MT/s Yes No 800, 1066, 1333, or 1600MT/s Yes Yes 1066 or 1333MT/s Ranks supported 1 or 2 1, 2, or 4 4 Capacity per DIMM 2 or 4GB 2, 4, 8, 16, or 32GB 32GB Maximum DIMMS per channel 2 3 3 DRAM technology x8 x4 or x8 x4 Temperature sensor Yes Yes Yes Error Correction Code (ECC) Yes Yes Yes Single Device Disable Code (SDDC) Yes (with advanced ECC mode) Yes Yes Address parity Yes Yes Yes *Although the T620 supports DIMM speeds of 800MT/s and 1066MT/s, you can only purchase this system with DIMM speeds of 1333MT/s and 1600MT/s on Dell.com.

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More memory options are available than ever before with the Dell PowerEdge T620
greater
capacities, higher frequencies, and more flexibility. The T620 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 (UDIMMs) and registered DIMMs (RDIMMs), the
T620 supports load reduced DIMMs (LRDIMMs), 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 T620.
Feature
UDIMM
RDIMM
LRDIMM
Register
No
Yes
Yes
Buffer
No
No
Yes
Frequencies*
800, 1066, 1333, or
1600MT/s
800, 1066, 1333, or
1600MT/s
1066 or 1333MT/s
Ranks supported
1 or 2
1, 2, or 4
4
Capacity per DIMM
2 or 4GB
2, 4, 8, 16, or 32GB
32GB
Maximum DIMMS per channel
2
3
3
DRAM technology
x8
x4 or x8
x4
Temperature sensor
Yes
Yes
Yes
Error Correction Code (ECC)
Yes
Yes
Yes
Single Device Disable Code
(SDDC)
Yes (with advanced
ECC mode)
Yes
Yes
Address parity
Yes
Yes
Yes
*Although the T620 supports DIMM speeds of 800MT/s and 1066MT/s, you can only purchase this system with DIMM
speeds of 1333MT/s and 1600MT/s on
Dell.com
.