Dell PowerEdge M620 - LCD Module

18 PowerEdge M620 Technical Guide
5 Memory
More memory options are available than ever before with the Dell PowerEdge M620 — greater
capacities, higher frequencies, and more flexibility. The M620 supports up to 768GB of memory and
speeds up to 1866MT/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 that 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 UDIMM and RDIMM technologies, the M620 supports load
reduced DIMMs (LRDIMMs), which use a buffer to reduce memory loading and allow for greater
density, allowing for the maximum platform memory capacity.
Supported memory
Table 6 lists the memory technologies supported by the M620.
Table 6. Memory technologies supported
Feature
UDIMM
RDIMM
LRDIMM
Register
No
Yes
Yes
Buffer
No
No
Yes
Frequencies*
800, 1066, 1333, or
1600MT/s
800, 1066, 1333, 1600 or
1866MT/s
1066, 1333, 1600 or
1866MT/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 M620 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/PowerEdge.