Dell PowerEdge M520 Technical Guide - Page 17

Memory

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5 Memory More memory options are available than ever before with the Dell PowerEdge M520 - greater capacities, higher frequencies and more flexibility. The M520 supports up to 384GB of memory (using 12 DIMMs) and speeds up to 1600MT/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 the Dell 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. Supported memory Table 6 lists the memory technologies supported by the M520. Feature Table 6. Memory technologies supported UDIMM RDIMM Register Buffer Frequencies* Ranks supported Capacity per DIMM No No 800, 1066, 1333 or 1600MT/s 1 or 2 2 or 4GB Yes No 800, 1066, 1333 or 1600MT/s 1, 2, or 4 2, 4, 8, 16, or 32GB Maximum DIMMs per channel 2 3 DRAM technology x8 x4 or x8 Temperature sensor Yes Yes Error Correction Code (ECC) Yes Yes Single Device Disable Code (SDDC) Yes (with advanced ECC mode) Yes Address parity Yes Yes *Although the M520 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. 17 PowerEdge M520 Technical Guide

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17
PowerEdge M520 Technical Guide
5
Memory
More memory options are available than ever before with the Dell PowerEdge M520
—
greater
capacities, higher frequencies and more flexibility. The M520 supports up to 384GB of memory
(using 12 DIMMs) and speeds up to 1600MT/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 the Dell 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.
Supported memory
Table 6 lists the memory technologies supported by the M520.
Table 6.
Memory technologies supported
Feature
UDIMM
RDIMM
Register
No
Yes
Buffer
No
No
Frequencies*
800, 1066, 1333 or 1600MT/s
800, 1066, 1333 or 1600MT/s
Ranks supported
1 or 2
1, 2, or 4
Capacity per DIMM
2 or 4GB
2, 4, 8, 16, or 32GB
Maximum DIMMs per channel
2
3
DRAM technology
x8
x4 or x8
Temperature sensor
Yes
Yes
Error Correction Code (ECC)
Yes
Yes
Single Device Disable Code
(SDDC)
Yes (with advanced ECC mode)
Yes
Address parity
Yes
Yes
*Although the M520 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
.