Memory; Overview; Dimms Supported; Key Features Of The R810 Memory System - Dell External OEMR R810 Technical Manual

Dell
7

Memory

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7.1

Overview

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The PowerEdge R810 uses DDR3 memory providing a high-performance, high-speed memory interface
capable of low latency response and high throughput. The R810 supports Registered ECC DDR3 DIMMs
(RDIMM).
The DDR3 memory interface consists of 8
each of which has two DDR3 memory channels. Each channel supports up to two RDIMMs for
single/dual/quad rank. By limiting each channel to two DIMMs per DDR channel, the system can
support quad-rank DIMMs at 1067 MHz.
The R810 memory interface supports memory demand and patrol scrubbing as well as single-bit
correction and multi-bit error detection. Correction of a x4 or x8 device failure (―chip kill‖) is
supported with Single Device Data Correction

DIMMs must be populated in matched pairs for each CPU (e.g., A1/A2, A3/A4). Single DIMM
operation is not supported.

If DIMMs of different speeds are mixed, all channels will operate at the fastest common
frequency. (Note that R810 only supports DDR3 1067 modules)
Memory Mirroring and Sparing configurations will be supported as follows:

Memory sparing will be allowed on configurations with >= 64GB populated

Memory Mirroring will be enabled on configurations with 32 DIMMs populated
The first DIMM slot in each channel is color-coded with white ejection tabs for ease of installation.
In the case of mixed-rank population, populate the DIMM with the highest number of ranks first (in
sockets with white ejection tabs).
The DIMM sockets are placed 440 mils (11.12 mm) apart, center-to-center in order to provide enough
space for sufficient airflow to cool stacked DIMMs.
DIMMs must be installed in each channel starting with the DIMM farthest from the SMB. Population
order will be identified by the designator on the system board and the System Information Label (SIL)
located on the chassis cover.
7.2

DIMMs Supported

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R810 supports RDIMMs only, running at 1067 MHz. DIMM capacities of 1GB, 2GB, 4GB, 8GB and 16GB
are supported.
Single-, dual-, and quad-rank DIMMS are supported.
LV DIMMs are not supported.
7.3

Key Features of the R810 Memory System

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Registered (RDIMM) ECC DDR3 technology features support:

Carrying of 64 data and 8 ECC bits for each channel

Up to 512 GB of memory (with 32 16GB RDIMMs)

1066 MHz single, dual, and quad rank DIMMs

ODT (On Die Termination)
Dell PowerEdge R810 Technical Guide
®
Intel 7500 Scalable Memory Buffers
(SDDC). The following properties/rules apply to R810:
®
( SMBs)
Intel 7500 ,
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