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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

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.

PowerEdge M620 Technical Guide

Table 6.

Memory technologies supported

UDIMM

800, 1066, 1333, or

1600MT/s

1 or 2

2 or 4GB

Yes

Yes (with advanced

ECC mode)

Yes

RDIMM

Yes

800, 1066, 1333, 1600 or

1866MT/s

1, 2, or 4

2, 4, 8, 16, or 32GB

x4 or x8

Yes

LRDIMM

Yes

1066, 1333, 1600 or

1866MT/s

32GB

Yes