BPN-SAS3-F424-A2N2A Backplane
USER'S GUIDE
Rev. 1.0

BPN-SAS3-F424-A2N2A Backplane User's Guide
The information in this User’s Manual has been carefully reviewed and is believed to be accurate.
The vendor assumes no responsibility for any inaccuracies that may be contained in this document,
makes no commitment to update or to keep current the information in this manual, or to notify any
person or organization of the updates. Please Note: For the most up-to-date version of thismanual, please see our web site at www.supermicro.com.
Super Micro Computer, Inc. ("Supermicro") reserves the right to make changes to the productdescribed in this manual at any time and without notice. This product, including software, if any,and documentation may not, in whole or in part, be copied, photocopied, reproduced, translated or
reduced to any medium or machine without prior written consent.
IN NO EVENT WILL SUPERMICRO BE LIABLE FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL,SPECULATIVE OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OR INABILITY TOUSE THIS PRODUCT OR DOCUMENTATION, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES. IN PARTICULAR, SUPERMICRO SHALL NOT HAVE LIABILITY FOR ANY
HARDWARE, SOFTWARE, OR DATA STORED OR USED WITH THE PRODUCT, INCLUDING THE
COSTS OF REPAIRING, REPLACING, INTEGRATING, INSTALLING OR RECOVERING SUCH
HARDWARE, SOFTWARE, OR DATA.															Any disputes arising between manufacturer and customer shall be governed by the laws of Santa
Clara County in the State of California, USA. The State of California, County of Santa Clara shallbe the exclusive venue for the resolution of any such disputes. Super Micro's total liability for allclaims will not exceed the price paid for the hardware product. 													California Best Management Practices Regulations for Perchlorate Materials: This Perchlorate
warning applies only to products containing CR (Manganese Dioxide) Lithium coin cells. “Perchlorate
Material-special handling may apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate”

WARNING: Handling of lead solder materials used in thisproduct may expose you to lead, a chemical known to
the State of California to cause birth defects and otherreproductive harm.

Manual Revision 1.0							Release Date: October 5, 2017
Unless you request and receive written permission from Super Micro Computer, Inc., you may notcopy any part of this document.
Information in this document is subject to change without notice. Other products and companies
referred to herein are trademarks or registered trademarks of their respective companies or markholders.
Copyright © 2017 by Super Micro Computer, Inc.
All rights reserved.

Printed in the United States of Americaii

Preface

Table of Contents
Contacting Supermicro........................................................................................iv
Returning Merchandise for Service.....................................................................v

Chapter 1 Safety Guidelines.....................................................................1-1
1-1

ESD Safety Guidelines.................................................................................... 1-1

1-2General Safety Guidelines............................................................................... 1-1

1-3

An Important Note to Users............................................................................. 1-2

1-4

Introduction to the BPN-SAS3-F424-A2N2A Backplane.................................. 1-2

Chapter 2 Connectors and Pin Definitions.............................................. 2-1
2-1

Front Connectors............................................................................................. 2-1

2-2

Front Connector Pin Definitions....................................................................... 2-2

2-3

Front Jumper Locations and Pin Definitions.................................................... 2-3

2-4

Rear Connectors and LED Indicators.............................................................. 2-5iii

BPN-SAS3-F424-A2N2A Backplane User's Guide

Contacting Supermicro
Headquarters
Address:

Super Micro Computer, Inc.
980 Rock Ave.
San Jose, CA 95131 U.S.A.

Tel:+1 (408) 503-8000

Fax:+1 (408) 503-8008

Email:

marketing@supermicro.com (General Information)
support@supermicro.com (Technical Support)

Web Site:www.supermicro.com

EuropeAddress:

Super Micro Computer B.V.
Het Sterrenbeeld 28, 5215 ML's-Hertogenbosch, The NetherlandsTel:+31 (0) 73-6400390

Fax:+31 (0) 73-6416525

Email:

sales@supermicro.nl (General Information)
support@supermicro.nl (Technical Support)
rma@supermicro.nl (Customer Support)

Asia-Pacific
Address:

Super Micro Computer, Inc.
4F, No. 232-1, Liancheng Rd.
Chung-Ho 235, Taipei County
Taiwan, R.O.C.

Tel:+886-(2) 8226-3990

Fax:+886-(2) 8226-3991

Web Site:www.supermicro.com.tw

Technical Support:
Email:

support@supermicro.com.tw

Tel:886-2-8226-1900

ivPreface

Returning Merchandise for Service
A receipt or copy of your invoice marked with the date of purchase is required before any warranty service will be rendered. You can obtain service by calling yourvendor for a Returned Merchandise Authorization (RMA) number. When returning
to the manufacturer, the RMA number should be prominently displayed on theoutside of the shipping carton, and mailed prepaid or hand-carried. Shipping andhandling charges will be applied for all orders that must be mailed when service
is complete.
For faster service, RMA authorizations may be requested online (http://www.supermicro.com/support/rma/).
Whenever possible, repack the backplane in the original Supermicro box, using theoriginal packaging materials. If these are no longer available, be sure to pack the
backplane in an anti-static bag and inside the box. Make sure that there is enoughpackaging material surrounding the backplane so that it does not become damaged
during shipping.
This warranty only covers normal consumer use and does not cover damages incurred in shipping or from failure due to the alteration, misuse, abuse or improper
maintenance of products.
During the warranty period, contact your distributor first for any product problems.

vChapter 1: Safety Guidelines

Chapter 1
Safety Guidelines

To avoid personal injury and property damage, carefully follow all the safety steps
listed below when accessing your system or handling the components.

1-1

ESD Safety Guidelines

Electrostatic Discharge (ESD) can damage electronic com­ponents. To prevent damage to your system, it is important to handle it very carefully. The following measures
are generally sufficient to protect your equipment from ESD.

• Use a grounded wrist strap designed to prevent static discharge.
• Touch a grounded metal object before removing a component from the antistaticbag.

• Handle the backplane 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 card and peripherals back into their antistatic bags when not in use.
1-2

General Safety Guidelines• Always disconnect power cables before installing or removing any components
from the computer, including the backplane.

• Disconnect the power cable before installing or removing any cables from thebackplane.

• Make sure that the backplane is securely and properly installed on the motherboard to prevent damage to the system due to power shortage.

1-1

BPN-SAS3-F424-A2N2A Backplane User's Guide

1-3

An Important Note to Users• All images and layouts shown in this user's guide are based upon the latest PCB
revision available at the time of publishing. The card you have received may or
may not look exactly the same as the graphics shown in this manual.

1-4 Introduction to the BPN-SAS3-F424-A2N2ABackplane
The BPN-SAS3-F418-B6N4 backplane has been designed to utilize the most
up-to-date technology available, providing your system with reliable, high-quality
performance.
Always refer to the Supermicro Web site at www.supermicro.com for the latest
updates, compatible parts, and supported configurations.

1-2

Chapter 2: Connectors and Pin Definitions

Chapter 2Connectors and Pin Definitions

2-1

Front Connectors
231

645
Figure 2-1. Front Connectors

1. Power Connector (4-pin) #1:JPW1

4. NVMe #0 Connector: CN0
5. Chip: CPLD

2. SAS Mini HD Connector #0-#1:
JSM0

6. JTAG Connector (7-pin): JP8,CPLD Upgrade Port

3. NVMe #1 Connector: CN1

2-1

BPN-SAS3-F424-A2N2A Backplane User's Guide

2-2

Front Connector Pin Definitions#1. Backplane Main Power Connector
The 4-pin connector, designated JPW1,
provides power to the backplane. See thetable on the right for pin definitions.

#2. SAS Mini HD Connector
The SAS port is used to connect the SAS3
drive cables. The port is designated JSM0for drives at SAS #0-#1 (see section 2-4for SAS drive locations). The port is also
compatible with SATA drives. However,mixing SAS3 and SATA drives in the sameenclosure is not recommended.

#3. - 4. NVMe Connectors
The NVMe ports are used to connect
the NVMe drive cables. OCuLink cables
should be used to connect these ports tothe corresponding ports on motherboard
X11DPFR-SN. The motherboard shouldhave its ports JNVME1 and JNVME2 connected to the backplane's ports CN0 andCN1, respectively.

#5. CPLD Chip
The CPLD is an enclosure management
chip that supports the SGPIO and LEDmanagement.

#6. CPLD Upgrade Port
The JTAG connector, designated JP8, isused only by the manufacturer to upgrade
CPLD.

2-2Backplane
Main Power
4-Pin Connector
Pin#           Definition
1 and 2Ground

3+5V

4+12V

Chapter 2: Connectors and Pin Definitions

2-3

Front Jumper Locations and Pin Definitions

J7
J6J3

J4 J5Figure 2-2. Front Jumpers

Explanation of Jumpers
To modify the operation of the backplane,
jumpers can be used to choose between
optional settings. Jumpers create shorts
between two pins to change the functionof the connector. Pin 1 is identified witha square solder pad on the printed circuitboard.
Note: On two pin jumpers, "Closed" means
the jumper is on and "Open" means thejumper is off the pins.

2-3Connector
Pins

3213

21JumperSettingBPN-SAS3-F424-A2N2A Backplane User's Guide

NVMe Port Mapping
JP3

Description

Open

2 NVMes come from the same CPU (default)

Closed

2 NVMes come from different CPUs

SAS/SATA Port Mapping
JP5

JP4OpenOpen@60h

BMC I2C Address

Open

Closed@68h

ClosedOpen@70h

ClosedClosed@78h

SAS/SATA Port Mapping
JP7JP6OpenOpen

Select SGPIO3 drives 0 and 1

Description

OpenClosed

Select SGPIO3 drives 1 and 2

ClosedOpen

Select SGPIO3 drives 2 and 3 (default)

2-4Chapter 2: Connectors and Pin Definitions

2-4

Rear Connectors and LED Indicators

J2

LED2
D2

J1

LED1
D1

Figure 2-3. Rear SAS/SATA Connectors and LED Indicators

SAS/SATA/NVMe Connectors and LED Indicators
LabelConnector Numberand HDD Number

HDD Activity LED(Blue)HDD Failure
LED (Red)

J1

SAS #A/NVMe #0*

LED1

D1**

J2

SAS #B/NVMe #1*

LED2

D2**

* Hybrid port for SAS and NVMe.
** The failure LED is bi-color. Red indicates Fail/Rebuild; green indicates NVMe
SSD is ready to be removed.

2-5

BPN-SAS3-F424-A2N2A Backplane User's GuideDisclaimer (cont.)
The products sold by Supermicro are not intended for and will not be used in life support systems, medical equipment, nuclear facilities or systems, aircraft, aircraft devices,
aircraft/emergency communication devices, or other critical systems whose failure toperform would be reasonably expected to result in significant injury or loss of life orcatastrophic property damage. Accordingly, Supermicro disclaims any and all liability,
and should buyer use or sell such products for use in such ultra-hazardous applications,
it does so entirely at its own risk. Furthermore, buyer agrees to fully indemnify, defend,
and hold Supermicro harmless for and against any and all claims, demands, actions,litigation, and proceedings of any kind arising out of or related to such ultra-hazardous
use or sale.

2-6