Memory; Supported Memory; Table 6. Memory Technologies Supported - Dell PowerEdge M620 Technical Manual

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.
Feature
Register
Buffer
Frequencies*
Ranks supported
Capacity per DIMM
Maximum DIMMs per
channel
DRAM technology
Temperature sensor
Error Correction Code
(ECC)
Single Device Disable
Code (SDDC)
Address parity
*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.
18 PowerEdge M620 Technical Guide
Table 6. Memory technologies supported
UDIMM
No
No
800, 1066, 1333, or
1600MT/s
1 or 2
2 or 4GB
2
x8
Yes
Yes
Yes (with advanced
ECC mode)
Yes
RDIMM
Yes
No
800, 1066, 1333, 1600 or
1866MT/s
1, 2, or 4
2, 4, 8, 16, or 32GB
3
x4 or x8
Yes
Yes
Yes
Yes
LRDIMM
Yes
Yes
1066, 1333, 1600 or
1866MT/s
4
32GB
3
x4
Yes
Yes
Yes
Yes