Supermicro X11QPX, X11OPX, X11SPX, X11DPX User Manual

iNTeL 1sT GeN. dCPMM MeMory

CoNfiGUraTioN

for

sUPerMiCro X11oPX/X11QPX/

X11dPX/X11sPX MoTherboards

User's GUide

Revision 1.00

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Manual Revision 1.00

Release Date: December 6, 2019

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Printed in the United States of America

Preface

Preface

This user's guide is written for system integrators, IT technicians and knowledgeable end
users. It provides information for the installation and use of 1st Generation Intel® Optane™
DC Persistent Memory Modules (DCPMMs) in a system based on the Supermicro X11OPx/
X11QPx/X11DPx/X11SPx series motherboard.

About This User's Guide

This user's guide provides an introduction to Intel 1st Gen. DC Persistent Memory Modules

(DCPMMs). It also provides detailed instructions on how to install and congure 1st Gen.

DCPMMs on Supermicro X11OPx/X11QPx/X11DPx/X11SPx series motherboards.

User's Guide Organization

Chapter 1 describes the features, specications and performance of Intel 1st Gen. DCPMM

memory modules.

Chapter 2 provides detailed instructions on how to install DCPMM memory in a Supermicro
computer system based on the X11OPx/X11QPx/X11DPx/X11SPx series motherboard.

Chapter 3 provides DCPMM conguration instructions using ipmctl and ndtcl. Read this
chapter when you want to congure the DCPMM settings using the open source utilities

available on the market.

Chapter 4 provides detailed instructions on how to congure DCPMM settings using the

BIOS utility.

Conventions Used in the User's Guide

Special attention should be given to the following symbols to ensure proper installation and

to avoid damaging system components or causing bodily injury to yourself:

Important: Important information given to ensure proper system installation or to relay
safety precautions.

Note: Additional Information given to provide information for proper system setup.

Important Links

For your system to work properly, please follow the links below to download all necessary
drivers/utilities and the user’s guide for your system.

• Supermicro product manuals: http://www.supermicro.com/support/manuals/

• Product drivers and utilities: https://www.supermicro.com/wftp/driver

• Product safety info: http://www.supermicro.com/about/policies/safety_information.cfm

• If you have any questions, please contact our support team at: [e-mail]

3

Super 1st Gen. DCPMM Memory for X11OPx/X11QPx/X11DPx/X11SPx Motherboards Guide

Contacting Supermicro

Headquarters

Address: Super Micro Computer, Inc.

980 Rock Ave.

San Jose, CA 95131 U.S.A.

Tel: [phone]

Fax: [phone]

Email: [e-mail] (General Information)

[e-mail] (Technical Support)

Website: www.supermicro.com

Europe

Address: Super Micro Computer B.V.

Het Sterrenbeeld 28, 5215 ML

's-Hertogenbosch, The Netherlands

Tel: [phone]

Fax: [phone]

Email: [e-mail] (General Information)

[e-mail] (Technical Support)

[e-mail] (Customer Support)

Website: www.supermicro.nl

Asia-Pacic

Address: Super Micro Computer, Inc.

3F, No. 150, Jian 1st Rd.

Zhonghe Dist., New Taipei City 235

Taiwan (R.O.C)

Tel: [phone]

Fax: [phone]

Email: [e-mail]

Website: www.supermicro.com.tw

4

Preface

Table of Contents

Chapter 1 Introduction

1.1 Introduction to Intel 1st Gen. DCPMM Memory Modules ....................................................6

1.2 DCPMM Modes ....................................................................................................................7

1.3 Specications .......................................................................................................................7

Chapter 2 DCPMM Memory Installation

2.1 Static-Sensitive Devices .....................................................................................................10

2.2 Installing DCPMM Memory Modules .................................................................................. 11

Chapter 3 Conguring DCPMM Settings Using Open Source Utilities

3.1 DCPMM Conguration........................................................................................................30

3.2 Ipmctl Conguration ...........................................................................................................32

Chapter 4 Conguring DCPMM Settings Using BIOS

4.1 To Enter the BIOS Setup Utility..........................................................................................42

4.2 To Congure DCPMM Memory as App Direct Mode .........................................................45

4.3 To Congure DCPMM Memory as Memory Mode .............................................................51

4.4 To Congure DCPMM Memory as Mixed Memory Mode ..................................................53

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Super 1st Gen. DCPMM Memory for X11OPx/X11QPx/X11DPx/X11SPx Motherboards Guide

Chapter 1

Introduction

Congratulations on purchasing your motherboard or your system from an industry leader.
Supermicro products are designed to provide you with the highest standards in quality and
performance.

1.1 Introduction to Intel 1st Gen. DCPMM Memory Modules

Intel® 1st Gen. Optane™ DC Persistent Memory Module (DCPMM), the latest memory
innovation, provides a new data-centric architecture that offers increased storage capabilities

for higher performance computing platforms with exible conguration options at lower cost.

Utilizing the unique disruptive technology, DCPMM can operate as system memory, which
allows the DCPMM to have memory-like performance with the storage capacity of a solid state
drive. In addition, DCPMM can also function as storage, providing memory-like performance
with persistence and high-capacity while operating at much lower latency at an affordable cost.

DCPMM memory supports three modes: Memory Mode, App Direct Mode, and Mixed Mode.
Optimized for volatile use, Memory Mode provides a high-capacity main memory solution

with higher power efciency at lower operational cost. All installed DDR4 DIMMs are hidden

from the operating system and act as the caching layer for the portion of the DCPMMs.
Featuring byte-addressability and cache-coherence, App Direct Mode allows memory space
to be provisioned as persistent memory where software can "talk directly to" the persistent

memory in the "byte-addressable" manner without any modications needed. DCPMM also

offers Mixed Memory Mode, a combination of Memory Mode and App Direct Mode, which
will allow a portion of the DCPMM to be used for the Memory Mode operations, while the
remaining portion is used for the App Direct Mode operations. This is especially instrumental
for the applications that use system RAM for in-memory databases. With DCPMM memory
used in the system, there is no need for the system RAM to copy data from disk to memory,
and thus effectively eliminate in-memory database initialization delays at bootup, further
enhancing system performance.

6

Chapter 1: Introduction

1.2 DCPMM Modes

This section provides additional details on DCPMM modes. Please refer to the information

below to congure your DCPMM memory settings.

Memory Mode (volatile memory)

In Memory Mode, the system treats DCPMM modules as system memory, and DCPMMs
will act as large-capacity DDR4 memory modules. The installed DDR4 DIMMs will become
a caching layer for the DCPMMs and will be hidden from the operating system.

App Direct Mode (non-volatile memory)

In App Direct Mode, DCPMM modules provide all persistent memory features to the
operating system and to the applications that support them. The DDR4 DIMMs will act as
system memory and DCPMMs will act as persistent storage.

Mixed Mode

DCPMMs can be congurated in Mixed Memory Mode with a portion of their capacity used

for Memory Mode operations, and the remaining capacity as persistent memory for App
Direct Mode operations. All DDR4 DIMMs discovered in the system are hidden from the
operating system and act as a caching layer for the DCPMMs Memory Mode portion.

Memory Ratio

In Memory Mode and Mixed Mode congurations, the required ratio of system memory to

DCPMMs is between 1:16 and 1:4 gigabytes. In order to achieve the best performance,
a ratio of 1:4 is recommended. In Mixed Mode, this ratio requirement applies to system
memory and only the volatile portion of the DCPMMs. The ratio requirement does not apply
to App Direct Mode.

1.3Specications

Operating Speed

1st Gen. DCPMMs operate at 2666 MHz DDR4 memory bus speed, and any installed 2933
MHz DDR4 memory will also operate at 2666 MHz.

Capacity

1st Gen. DCPMM modules are offered in capacities of 128GB, 256GB, and 512GB.

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Super 1st Gen. DCPMM Memory for X11OPx/X11QPx/X11DPx/X11SPx Motherboards Guide

AdditionalSpecications

When set to App-Direct Mode, DCPMM provides optional data security support, including
secure-erasing and data-encryption. DCPMM encrypts data using AES 256-bit encryption
and it supports the following memory functions:

ECC

ECC (Error-Correcting Code) memory, a type of computer data storage, can detect and
correct most-common internal data corruptions and errors. ECC memory is usually used in
computers that cannot tolerate data corruptions or memory errors such as computers used

for scientic or nancial purposes. Normally, ECC memory maintains a memory system

that is immune to single-bit errors so that the data that is read from each word is always
the same as the data that had been written to it. ECC memory will protect against any
additional memory failure caused by a ‘single-bit’ error in the same memory rank.

SDDC

SDDC (Single Device Data Correction) checks and corrects single-bit or multiple-bit (4-bit
max.) memory corruptions and errors that affect an entire single x4 DRAM device. SDDC
Plus One is the enhanced feature to SDDC. Using this enhanced feature will spare the
faulty DRAM device out after an SDDC event has occurred. After the event, ECC mode will
be activated to further protect the system against any additional memory failure caused by
a ‘single-bit’ error in the same memory rank.

DDDC

DDDC (Double Device Data Correction) provides memory-error checking and correction and
it also prevents the system from issuing a performance penalty before a device fails. Please
note that virtual lockstep mode might be affected until a faulty DRAM module is spared.

Patrol scrubbing

Patrol Scrubbing is a process that allows the CPU to correct correctable memory errors
detected on a memory module and send the correction to the requestor (the original source).
When Patrol Scrubbing is activated, the IO hub will read and write back one cache line
every 16K cycles if there is no delay caused by internal processing. By using this method,
roughly 64 GB of memory behind the IO hub will be scrubbed every day.

Demand scrubbing

Demand Scrubbing is a process that allows the CPU to correct correctable memory errors
found on a memory module. When the CPU or I/O issues a demand-read command, and the
read data from memory turns out to be a correctable error, the error is corrected and sent
to the requestor (the original source). In the meantime, system memory is updated as well.

8

Operating System Support

1st Gen. DCPMM modules support the following operation systems:

• Microsoft Windows Server 2019

• Red Hat Enterprise Linux 7.6

• SUSE Linux Enterprise Server 12.4

• SUSE Linux Enterprise Server 15

• VMware vSphere Hypervisor (ESXi) 6.7 U1

• Ubuntu LTS 18.04

Processor Platform Support

Chapter 1: Introduction

1st Gen. DCPMM modules are supported by the following processors:

• 2nd Gen Intel® Xeon Scalable-SP (82xx/62xx/52xx/4215 series) processors

Platform Support

• 1st Gen. DCPMM memory supports Supermicro X11OPx, X11QPx, X11DPx and X11SPx*

series of motherboards. (*See the note below.)

Note: For the X11SPx motherboards, only X11SPL-F (rev. 1.03) and X11SPM-F/TF/
TPF (all revisions) have been validated for DCPMM memory support.

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Super 1st Gen. DCPMM Memory for X11OPx/X11QPx/X11DPx/X11SPx Motherboards Guide

Chapter 2

DCPMM Memory Installation

2.1 Static-Sensitive Devices

Electrostatic Discharge (ESD) can damage electronic com ponents. To avoid damaging your
motherboard, it is important to handle it very carefully. The following measures are generally

sufcient to protect your equipment from ESD.

Precautions

• Use a grounded wrist strap designed to prevent static discharge.

• Touch a grounded metal object before removing the motherboard from the antistatic bag.

• Handle the motherboard by its edges only; do not touch its components, peripheral chips,

memory modules or gold contacts.

• When handling chips or modules, avoid touching their pins.

• Put the motherboard and peripherals back into their antistatic bags when not in use.

• For grounding purposes, make sure that your computer chassis provides excellent conduc-

tivity between the power supply, the case, the mounting fasteners and the motherboard.

• Use only the correct type of onboard CMOS battery. Do not install the onboard battery

upside down to avoid possible explosion.

Unpacking

Supermicro's motherboards are shipped in antistatic packaging to avoid static damage. When
unpacking a motherboard , make sure that the person handling it is static protected.

10

Chapter 2: DCPMM Memory Installation

2.2 Installing DCPMM Memory Modules

Important: Exercise extreme care when installing or removing DIMM modules to pre-

vent any possible damage.

Memory Population Requirements

For proper memory installation, please pay close attention to the following instructions:

1. Intel 1st Generation DCPMM is supported by Supermicro X11OPx, X11QPx, X11DPx,
X11SPx series motherboards.

2. Memory speeds are dependent upon the processors used in your system.

3. All DCPMMs installed on your motherboard must be of the same size, and the DDR4

DIMMs that are installed in conjunction with DCPMMs must be of the same size and the

same type as well.

4. When installing a memory module, be sure to install the DIMM module in the rst
channel slot (i.e. DIMMA1), and then, in the second channel slot (i.e. DIMMA2).

5. Please use balanced conguration to achieve maximum performance. Supermicro

does not recommend unbalanced memory conguration since it will reduce memory

performance.

6. Mixing different DIMM types or using 1Rx8 DIMMs in conjunction with DCPMMs is not
supported.

7. A total of six DCPMMs can be supported per processor (one in each memory channel),
and a minimum of two DDR4 DIMMs are required per processor (one per memory
controller).

8. For Memory Mode, a minimum of two DCPMMs are required per processor (one per
memory controller). For App Direct Mode, a minimum of one DCPMM is required per
processor (any processor).

9. Check the Supermicro website for recommended memory modules.

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Super 1st Gen. DCPMM Memory for X11OPx/X11QPx/X11DPx/X11SPx Motherboards Guide

Maximum Memory Capacity Supported on a Platform

The maximum memory capacity that is supported on a platform is dependent on the sufx of

the Second Generation Xeon Scalable Processor used in your system:

• Processors with an L sufx (i.e. 8280L): 4.5 TB maximum per processor

• Processors with an M sufx (i.e. 8280M): 2 TB maximum per processor

• Processors with no sufx (i.e. 8280): 1 TB per processor

RestrictionsonMemoryCongurationSettings

When conguring memory mirroring and memory sparing settings, please note the following

restrictions:

1. Only the DRAM DIMM installed in the system will be mirrored; DCPMMs do not support
memory mirroring.

2. Memory mirroring is only supported when DCPMMs are congured in App-Direct Mode.

3. Memory sparing is not supported when DCPMMs are installed in the system.

12

Chapter 2: DCPMM Memory Installation

DCPMM Population Tables

DCPMM Population Table for the X11UP Motherboards (w/6 DIMM slots)

Note: The following tables are supported supported by the X11SPM-F/TF/TPF only.

Symmetric Population within CPU Socket

Modes DIMMC1 DIMMB1 DIMMA1 DIMMD1 DIMME1 DIMMF1

AD DCPMM DRAM1 DRAM1 DRAM1 DRAM1 DCPMM 1-1-1

MM DCPMM DRAM1 DRAM1 DRAM1 DRAM1 DCPMM 1-1-1

AD + MM DCPMM DRAM3 DRAM3 DRAM3 DRAM3 DCPMM 1-1-1

Channel

Cong.

(for the two tables above)

DDR4 Type Capacity

DRAM1 RDIMM 3DS RDIMM LRDIMM 3DS LRDIMM

DRAM3 RDIMM 3DS RDIMM LRDIMM -

Legend

Refer to Validation Matrix (DDR4 DIMMs validated

with DCPMM) below.

Note: DDR4 single rank x8 is not available for DCPMM Memory Mode or App-Direct
Mode.

(forthersttwotables above)

DCPMM Any Capacity (Uniformly for all channels for a given conguration)

Legend

Capacity

• For each individual population, rearrangements between channels are allowed as long as the resulting population is

compliant with the Supermicro X11OPx/X11QPx/X11DPx/X11SPx memory population rules for the 2nd Gen Intel Xeon

Scalable-SP (82xx/62xx/52xx/4215 series) processors.

• For each individual population, please use the same DDR4 DIMM in all slots.

• For each individual population, sockets are normally symmetric with exceptions for 1 DCPMM per socket and 1 DCPMM

per node case. Currently, DCPMM modules operate at 2666 MHz.

• No mixing of DCPMM and NVMDIMMs within the same platform is allowed.

• This DCPMM population guide targets a balanced DCPMM-to-DRAM-cache ratio in MM and MM + AD modes.

Validation Matrix (DDR4 DIMMs Validated w/DCPMM)

DIMM Type

RDIMM

LRDIMM 4Rx4 N/A 64GB

LRDIMM 3DS 8Rx4 (4H) N/A 128GB

Ranks Per DIMM

& Data Width

(Stack)

1Rx4 8GB 16GB

2Rx8 8GB 16GB

2Rx4 16GB 32GB

DIMM Capacity (GB)

DRAM Density

4Gb 8Gb

13

Super 1st Gen. DCPMM Memory for X11OPx/X11QPx/X11DPx/X11SPx Motherboards Guide

DCPMM Population Table for the X11UP Motherboards (w/8 DIMM slots)

Note: The following tables are supported by the X11SPL-F only.

Symmetric Population within CPU Socket

Modes DIMMC1 DIMMB1 DIMMA1 DIMMA2 DIMMD2 DIMMD1 DIMME1 DIMMF1

AD DRAM1 DRAM1 DRAM1 DCPMM DCPMM DRAM1 DRAM1 DRAM1 2-1-1

MM DRAM2 DRAM2 DRAM2 DCPMM DCPMM DRAM2 DRAM2 DRAM2 2-1-1

AD + MM DRAM3 DRAM3 DRAM3 DCPMM DCPMM DRAM3 DRAM3 DRAM3 2-1-1

AD DCPMM DRAM1 DRAM1 DRAM1 DRAM1 DCPMM 1-1-1

MM DCPMM DRAM1 DRAM1 DRAM1 DRAM1 DCPMM 1-1-1

AD + MM DCPMM DRAM3 DRAM3 DRAM3 DRAM3 DCPMM 1-1-1

Asymmetric Population within CPU Socket

Modes DIMMC1 DIMMB1 DIMMA1 DIMMA2 DIMMD2 DIMMD1 DIMME1 DIMMF1

AD DRAM1 DRAM1 DRAM1 DCPMM DRAM1 DRAM1 DRAM1 2-1-1

Channel

Cong.

Channel

Cong.

(for the two tables above)

Legend

DDR4 Type Capacity

DRAM1 RDIMM 3DS RDIMM LRDIMM 3DS LRDIMM

DRAM2 RDIMM - -

DRAM3 RDIMM 3DS RDIMM LRDIMM -

Refer to Validation

Matrix (DDR4 DIMMs

validated with DCPMM)

below.

Note: DDR4 single rank x8 is not available for DCPMM Memory Mode or App-Direct
Mode.

(forthersttwotables above)

DCPMM Any Capacity (Uniformly for all channels for a given conguration)

Legend

Capacity

• For each individual population, rearrangements between channels are allowed as long as the resulting population is

compliant with the Supermicro X11OPx/X11QPx/X11DPx/X11SPx memory population rules for the 2nd Gen Intel Xeon

Scalable-SP (82xx/62xx/52xx/4215 series) processors.

• For each individual population, please use the same DDR4 DIMM in all slots.

• For each individual population, sockets are normally symmetric with exceptions for 1 DCPMM per socket and 1 DCPMM

per node case. Currently, DCPMM modules operate at 2666 MHz.

• No mixing of DCPMM and NVMDIMMs within the same platform is allowed.

• This DCPMM population guide targets a balanced DCPMM-to-DRAM-cache ratio in MM and MM + AD modes.

Validation Matrix (DDR4 DIMMs Validated w/DCPMM)

DIMM Type

RDIMM

LRDIMM 4Rx4 N/A 64GB

LRDIMM 3DS 8Rx4 (4H) N/A 128GB

Ranks Per DIMM

& Data Width

(Stack)

1Rx4 8GB 16GB

2Rx8 8GB 16GB

2Rx4 16GB 32GB

DIMM Capacity (GB)

DRAM Density

4Gb 8Gb

14

Chapter 2: DCPMM Memory Installation

DCPMM Population Table for the X11DP Motherboards (w/8 DIMM Slots)

Symmetric Population within 1 CPU socket

Modes

AD DCPMM DRAM1 DRAM1 DCPMM 1-1

MM DCPMM DRAM1 DRAM1 DCPMM 1-1

AD + MM DCPMM DRAM3 DRAM3 DCPMM 1-1

DRAM1 RDIMM 3DS RDIMM LRDIMM 3DS LRDIMM

DRAM2 RDIMM - -

DRAM3 RDIMM 3DS RDIMM LRDIMM -

P1-

DIMME1

Note: DDR4 single rank x8 is not available for DCPMM Memory Mode or App-Direct

Mode.

P1-

DIMMD1

P1-

DIMMA1

P1-

DIMMB1

ChannelCong.

Legend

(for the table above)

DDR4 Type Capacity

Refer to Validation Matrix

(DDR4 DIMMs validated with

DCPMM) below.

(forthersttableabove)

Legend

Capacity

DCPMM Any Capacity (Uniformly for all channels for a given conguration)

• Mode denitions: AD=App Direct Mode, MM=Memory Mode, AD+MM=Mixed Mode

• For MM, general DDR4+DCPMM ratio is between 1:4 and 1:16. Excessive capacity for DCPMM can be used for AD.

• For each individual population, rearrangements between channels are allowed as long as the resulting population is

compliant with the Supermicro X11OPx/X11QPx/X11DPx/X11SPx memory population rules for the 2nd Gen Intel Xeon

Scalable-SP (82xx/62xx/52xx/4215 series) processors.

• For each individual population, please use the same DDR4 DIMM in all slots.

• For each individual population, sockets are normally symmetric with exceptions for 1 DCPMM per socket and 1 DCPMM

per node case. Currently, DCPMM modules operate at 2666 MHz.

• No mixing of DCPMM and NVMDIMMs within the same platform is allowed.

• This DCPMM population guide targets a balanced DCPMM-to-DRAM-cache ratio in MM and MM + AD modes.

Validation Matrix (DDR4 DIMMs Validated w/DCPMM)

DIMM Type

RDIMM

LRDIMM 4Rx4 N/A 64GB

LRDIMM 3DS 8Rx4 (4H) N/A 128GB

Ranks Per DIMM

& Data Width

(Stack)

1Rx4 8GB 16GB

2Rx8 8GB 16GB

2Rx4 16GB 32GB

DIMM Capacity (GB)

DRAM Density

4Gb 8Gb

15

Super 1st Gen. DCPMM Memory for X11OPx/X11QPx/X11DPx/X11SPx Motherboards Guide

DCPMM Population Table for the X11DP Motherboards (w/12 DIMM Slots)

Symmetric Population within 1 CPU Socket

Modes

AD DCPMM DRAM1 DRAM1 DRAM1 DRAM1 DCPMM 1-1-1

MM DCPMM DRAM1 DRAM1 DRAM1 DRAM1 DCPMM 1-1-1

AD + MM DCPMM DRAM3 DRAM3 DRAM3 DRAM3 DCPMM 1-1-1

P1-

DIMMF1

DRAM1 RDIMM 3DS RDIMM LRDIMM 3DS LRDIMM

DRAM2 RDIMM - -

DRAM3 RDIMM 3DS RDIMM LRDIMM -

Note: DDR4 single rank x8 is not available for DCPMM Memory Mode or App-Direct

Mode.

P1-

DIMME1

P1-

DIMMD1

P1-

DIMMA1

P1-

DIMMB1

P1-

DIMMC1

Legend

(for the table above)

DDR4 Type Capacity

Refer to Validation Matrix

(DDR4 DIMMs validated with

DCPMM) below.

ChannelCong.

(forthersttableabove)

Legend

Capacity

DCPMM Any Capacity (Uniformly for all channels for a given conguration)

• * 2nd socket has no DCPMM DIMM

• Mode denitions: AD=App Direct Mode, MM=Memory Mode, AD+MM=Mixed Mode

• For MM, general DDR4+DCPMM ratio is between 1:4 and 1:16. Excessive capacity for DCPMM can be used for AD.

• For each individual population, rearrangements between channels are allowed as long as the resulting population is

compliant with the Supermicro X11OPx/X11QPx/X11DPx/X11SPx memory population rules for the 2nd Gen Intel Xeon

Scalable-SP (82xx/62xx/52xx/4215 series) processors.

• For each individual population, please use the same DDR4 DIMM in all slots.

• For each individual population, sockets are normally symmetric with exceptions for 1 DCPMM per socket and 1 DCPMM

per node case. Currently, DCPMM modules operate at 2666 MHz.

• No mixing of DCPMM and NVMDIMMs within the same platform is allowed.

• This DCPMM population guide targets a balanced DCPMM-to-DRAM-cache ratio in MM and MM + AD modes.

Validation Matrix (DDR4 DIMMs Validated w/DCPMM)

DIMM Type

RDIMM

LRDIMM 4Rx4 N/A 64GB

LRDIMM 3DS 8Rx4 (4H) N/A 128GB

Ranks Per DIMM

& Data Width

(Stack)

1Rx4 8GB 16GB

2Rx8 8GB 16GB

2Rx4 16GB 32GB

DIMM Capacity (GB)

DRAM Density

4Gb 8Gb

16

Chapter 2: DCPMM Memory Installation

DCPMM Population Table for the X11DP Motherboards (w/16 DIMM Slots)

Symmetric Population within 1 CPU Socket

Modes

AD DRAM1 DRAM1 DRAM1 DCPMM DCPMM DRAM1 DRAM1 DRAM1 2-1-1

MM DRAM2 DRAM2 DRAM2 DCPMM DCPMM DRAM2 DRAM2 DRAM2 2-1-1

AD + MM DRAM3 DRAM3 DRAM3 DCPMM DCPMM DRAM3 DRAM3 DRAM3 2-1-1

AD DCPMM DRAM1 DRAM1 - - DRAM1 DRAM1 DCPMM 1-1-1

MM DCPMM DRAM1 DRAM1 - - DRAM1 DRAM1 DCPMM 1-1-1

AD + MM DCPMM DRAM3 DRAM3 - - DRAM3 DRAM3 DCPMM 1-1-1

Modes

AD DRAM1 DRAM1 DRAM1 - DCPMM DRAM1 DRAM1 DRAM1 2-1-1

AD* DRAM1 DRAM1 DRAM1 - DCPMM DRAM1 DRAM1 DRAM1 2-1-1

P1-

DIMMF1

P1-

DIMMF1

DRAM1 RDIMM 3DS RDIMM LRDIMM 3DS LRDIMM

DRAM2 RDIMM - - -

DRAM3 RDIMM 3DS RDIMM LRDIMM -

P1-

DIMME1

P1-

DIMME1

P1-

DIMMD1

P1-

DIMMD2

P1-

DIMMA2

P1-

DIMMA1

P1-

DIMMB1

Asymmetric Population within 1 CPU Socket

P1-

DIMMD1

P1-

DIMMD2

P1-

DIMMA2

P1-

DIMMA1

P1-

DIMMB1

Legend

(for the two tables above)

DDR4 Type Capacity

Refer to Validation Matrix (DDR4

P1-

DIMMC1

DIMMC1

DIMMs validated with DCPMM)

below.

P1-

ChannelCong.

ChannelCong.

Note: DDR4 single rank x8 is not available for DCPMM Memory Mode or App-Direct
Mode.

(forthersttwotables above)

DCPMM Any Capacity (Uniformly for all channels for a given conguration)

Legend

Capacity

• * 2nd socket has no DCPMM DIMM

• Mode denitions: AD=App Direct Mode, MM=Memory Mode, AD+MM=Mixed Mode

• For MM, general DDR4+DCPMM ratio is between 1:4 and 1:16. Excessive capacity for DCPMM can be used for AD.

• For each individual population, rearrangements between channels are allowed as long as the resulting population is

compliant with the Supermicro X11OPx/X11QPx/X11DPx/X11SPx memory population rules for the 2nd Gen Intel Xeon

Scalable-SP (82xx/62xx/52xx/4215 series) processors.

• For each individual population, please use the same DDR4 DIMM in all slots.

• For each individual population, sockets are normally symmetric with exceptions for 1 DCPMM per socket and 1 DCPMM

per node case. Currently, DCPMM modules operate at 2666 MHz.

• No mixing of DCPMM and NVMDIMMs within the same platform is allowed.

• This DCPMM population guide targets a balanced DCPMM-to-DRAM-cache ratio in MM and MM + AD modes.

Validation Matrix (DDR4 DIMMs Validated w/DCPMM)

DIMM Type

RDIMM

LRDIMM 4Rx4 N/A 64GB

LRDIMM 3DS 8Rx4 (4H) N/A 128GB

Ranks Per DIMM

& Data Width

(Stack)

1Rx4 8GB 16GB

2Rx8 8GB 16GB

2Rx4 16GB 32GB

DIMM Capacity (GB)

DRAM Density

4Gb 8Gb

17