SUPER®

SAS936A
REV: 3.1MH7
SEC_I2CAA

CCCCCAAACCBAR CODEA

A+5V

GND

GND+12V+5V

GND

GND+12V+5V

GND

GND+5V+12V

GND

GND+12V
R581

FAN1PWR3PWR2PWR1

FAN2
PWR0

SAS-936A BACKPLANE
USER'S GUIDE
Rev. 1.0

FAN3

SAS-936A 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 orreduced 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 TO
USE 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 all
claims will not exceed the price paid for the hardware product.

Manual Revision 1.0b
Release Date: January 8, 2008

Unless you request and receive written permission from SUPER MICRO COMPUTER, you may notcopy or otherwise reproduce/distribute 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 © 2008 by SUPER MICRO COMPUTER INC.
All rights reserved.

Printed in the United States of AmericaiiSafety Information and Technical Speciﬁcations

Table of Contents
SAS 936A BACKPLANE
Contacting SuperMicro ..................................................................................................iv

Chapter 1 Safety Guidelines
1-1

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

1-2

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

1-3

A Note to Users............................................................................................... 1-2

Chapter 2 Jumper Settings and Pin Deﬁnitions
2-1

Front Connectors and Jumpers ...................................................................... 2-1
Front Connectors ............................................................................................ 2-1

2-2

Front Connector and Pin Deﬁnitions ............................................................... 2-3

2-3

Front Jumper Locations and Pin Deﬁnitions ................................................... 2-5
Explanation of Jumpers .............................................................................. 2-5
Fan Jumper Settings ....................................................................................... 2-6
I2C and SGPIO Modes and Jumper Settings ................................................. 2-7
Front LED Indicators ....................................................................................... 2-8
Front Panel LEDs............................................................................................ 2-8

2-4

Rear Connectors and LED Indicators ............................................................. 2-9iii

SAS-936A Backplane User's Guide

Contact Information
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.comEuropeAddress:

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-PaciﬁcAddress:

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

Tel:+886-(2) 8226-3990Fax:+886-(2) 8226-3991

Web Site:www.supermicro.com.tw

Email:

support@supermicro.com.tw (Technical Support)

Tel:886-2-8228-1366, ext.132 or 139iv

Safety Information and Technical Speciﬁcations

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

Electric Static 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 RAID card 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

SAS-936A Backplane User's Guide

1-3

A 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 ormay not look exactly the same as the graphics shown in this manual.

1-2Safety Information and Technical Speciﬁcations

Chapter 2Jumper Settings and Pin Deﬁnitions

2-1

Front Connectors and Jumpers
SAS936A
REV: 3.1
SEC_I2C+5V

GND

GND

1011+5V+12V

C+12VA

GND

C

GND

C+5V

112412A

132A

C+12V

C

GND

A

CC

BAR CODE
GND

4MH7A

A

A+5V

55GND

GND+12V
R581

FAN1PWR36PWR26PWR167PWR068FAN3FAN23 39Front Connectors
1. Chip: MG9072
2. Upgrade Connectors: JP69 andJP78
3. ACT_IN: JP26 and JP47
4. I2C Connector #1 (JP37) and #2(JP95)
5. I2C Connector #3 (JP52) and #4(JP96)
6. Power Connectors (4-pin): JP10,JP13, JP46 and JP48.

2-1

7. Fan Connector, Fan#1 JP54
8. Fan Connector, Fan#2 JP56
9. Fan Connector, Fan#3 JP58
10. SAS IN#1 JSM1
11. SAS IN#2 JSM2
12. SAS IN#3 JSM3
13. SAS IN#4 JSM4

SAS-936A Backplane User's Guide

2-2

Front Connector and Pin Deﬁnitions

1. MG9072 Chip
The MG9072 is an enclosure management
chip that supports the SES-2 controller andSES-2 protocols.
2. Upgrade Connectors
The upgrade connectors are designated JP69,
and JP78 are used for manufacturer's diagnostic purposes only.
3. ACT_IN:
The activity LED connectors, designated JP26,
and JP47 are used to indicate the activity
status of each SAS drive. The Activity LED
connector is located on the front panel. For
the Activity LED connector to work properly,connect using a 10-pin LED cable. This is onlyused when the Activity LED is not supported by
the hard drive.

SAS Activity LED Header
Pin Deﬁnitions (JP26)
Pin #Deﬁnition

1

ACT IN#06Pin #ACT IN#4Deﬁnition

2ACT IN#1

7ACT IN#53ACT IN#28ACT IN#64ACT IN#39ACT IN#75Ground

10Empty

SAS Activity LED Header
Pin Deﬁnitions (JP47)
Pin #Deﬁnition

1ACT IN#8

6ACT IN#122ACT IN#97ACT IN#13

3ACT IN#10

8ACT IN#144

ACT IN#119ACT IN#15

5Ground

10Empty

4. and 5. I2C Connectors
The I C Connectors, designated JP37, JP95,JP52, and JP96 are used to monitor HDD
activity and status. See the table on the rightfor pin deﬁnitions.

Deﬁnition

I2C Connector
Pin Deﬁnitions(JP37, JP95, JP52 andJP96)

22-2

Pin #Pin# Deﬁnition
1Data

2

Ground3Clock4No ConnectionSafety Information and Technical Speciﬁcations
6. Backplane Main Power Connectors

Backplane
Main Power
4-Pin Connector(JP10, JP13, JP46,and JP48)

The 4-pin connectors, designated JP10,JP13, JP46 and JP48, provide power to thebackplane. See the table on the right for pin
deﬁnitions.

Pin# Deﬁnition
1+12V

2 and 3Ground+5V

47., 8. and 9. Fan Connectors

Fan Connectors(JP54, JP56 and JP58)

The 3-pin or 4-pin connectors, designatedJP54, JP56, and JP58 provide power to thefans. See the table on the right for pin deﬁnitions.

Pin# Deﬁnition
1Ground

2+12V

3Tachometer

4No Connection

10. - 13. SAS IN Ports (Sideband included)
The SAS ports are used to connect the SASdrive cables. The four SAS IN ports are designated #JSM1 - #JSM4. Each port is also
compatible with SATA drives.

Note: SGPIO is the default setting for thisbackplane

Sideband Deﬁnitions(JSM1 - JSM4)
Pin # Deﬁnition
A11

SGPIO:SDIN

Pin # DeﬁnitionB11

Controller ID
(SB6)

B10

GND (SB2)

B9SGPIO:SLOAD

I2C:
Backplane
Addressing
(SB5)
A12

SGPIO:
SDOUT
I2C: Reset(SB4)A9GND (SB3)

I2C:SDA(SB1)
A8

Backplane
ID (SB7)B8SGPIO:SCLOCKI2C:SCL(SB0)

2-3

SAS-936A Backplane User's Guide

2-3

Front Jumper Locations and Pin Deﬁnitions
JP35
SAS936A
REV: 3.1

GND+12V+5V

GND

GND+12V+5V

GND

GND+5V+12V

GND

GND

C

GND

A+5VC

JP97C

C

C

C

C

BAR CODE

63A

A

A

A

A

JP50A

JP

MH7
SEC_I2CJP99
JP99
JP62+12V
R581

FAN1
PWR3

PWR2

PWR1

FAN3

FAN2
PWR0

JP61

JP63

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
the jumper is off the pins.

2-4Connector
Pins321321Jumper

SettingSafety Information and Technical Speciﬁcations

Jumper Settings
JumperJumper Settings

NoteJP35

1-2: Reset
2-3: Default

MG9072 Chip Reset #1

JP50

1-2: Reset
2-3: Default

MG9072 Chip Reset #2

Fan Jumper Settings
This backplane can use up to four fans. To utilize each fan, you must conﬁgure
both jumpers as instructed below.

Fan Jumper Settings
JumperJumper Settings

Note

JP61

1-2:With Fan (Default)
2-3:No Fan

FAN#1

JP97

1-2:With Fan (Default)
2-3:No Fan

FAN#1

JP62

1-2:With Fan (Default)
2-3:No Fan

FAN#2

JP981-2:With Fan (Default)
2-3:No Fan

FAN#2

JP63

1-2:With Fan (Default)
2-3:No Fan

FAN#3

JP99

1-2:With Fan (Default)
2-3:No Fan

FAN#3

2-5

SAS-936A Backplane User's Guide

I2C and SGPIO Modes and Jumper Settings
This backplane can utilize I2C or SGPIO. SGPIO is the default mode and can beused without making changes to your jumper. The following information details
which jumper must be conﬁgured to use SGPIO mode or restore your backplaneto I2C mode.

SGPIO Setting (Default)
Jumper
JP84Jumper Setting1-2

Note
SGPIO Mode Setting

I2C Setting
JumperJP84

Jumper Setting
2-3

Note
I2C Setting

2-6Safety Information and Technical Speciﬁcations

Front LED Indicators
D36

D54

D47

D3D53

D45

D49SAS936A
REV: 3.1
MH7
SEC_I2C

CCCA

ACCA

A

A

CC

BAR CODE

A

A+5V

GND

GND+12V+5V

GND

GND+12V+5V

GND

GND+5V+12V

GND

GND+12V
R581

FAN1
PWR3

PWR2

PWR1

FAN2

FAN3

PWR0

Front Panel LEDs
LEDSTATE

SPECIFICATION

D45ON

Failure in Fan #1.

D47

ON

Failure in Fan #2.

D49ON

Failure in Fan #3.

D3ON

Alarm #1: Overheat/Drive Failure/Fan Failure in Channels 0-7.

D36

ON

Alarm #2: Overheat/Drive Failure in Channels 8-15.

D53

OFF

+5V : Backplane power failure. Light is on
during normal operation.

D54

OFF+12V : Backplane power failure. Light is on
during normal operation.

2-7

SAS-936A Backplane User's GuideCACTFAIL

A
C

C-4 Rear Connectors and LED Indicators
ACFAIL

A

CACTA
J11

#15

#14
J14J9J8#13

J14

#12
J13

#11

#10

#9C77

J12#8C75

J3J4#7#6J10#5#4J7#3

J2J0

J1#2J6#1J5#0

FAIL3CACT3A

CAFAIL4C

ACT4A

AA

FAIL5ACT5CAFAIL6AC

ACT6

SAS #6

SAS #5SAS #4

SAS #3A

SAS #2C

SAS #1ACACT7CAFAIL8C

ACT8A

CAFAIL9CA

ACT9FAILA

SAS #0CA

FAIL7CAC

FAIL10

ACT10ACAC

FAIL11

ACT11ACAFAIL12C

ACT12AA

A

FAIL13

ACT13

CAC

FAIL14

ACT14C

FAIL

A

C

ACTA

Rear SAS/SATA Connectors
RearConnector

SAS Drive
Number

RearConnector

SAS Drive
NumberSAS #0SAS/SATA HDD #0SAS #12

SAS/SATA HDD #12

SAS #1

SAS/SATA HDD #1

SAS #13

SAS/SATA HDD #13

SAS #2

SAS/SATA HDD #2

SAS #14

SAS/SATA HDD #14

SAS #3

SAS/SATA HDD #3

SAS #15

SAS/SATA HDD #15

SAS #4

SAS/SATA HDD #4

SAS #16

SAS/SATA HDD #16

SAS #5

SAS/SATA HDD #5

SAS #17

SAS/SATA HDD #17

SAS #6

SAS/SATA HDD #6

SAS #18

SAS/SATA HDD #18

SAS #7

SAS/SATA HDD #7

SAS #19

SAS/SATA HDD #19

SAS #8

SAS/SATA HDD #8

SAS #20

SAS/SATA HDD #20

SAS #9SAS/SATA HDD #9

SAS #21

SAS/SATA HDD #21

SAS #10

SAS/SATA HDD #10SAS #22

SAS/SATA HDD #22

SAS #11

SAS/SATA HDD #11

SAS #23

SAS/SATA HDD #23

2-8

ACAC

FAIL15

ACT15

SAS #15CAASAS #14

CACT2

SAS #13CAFAIL2

SAS #12A

SAS #11

CACT1

SAS #10CAFAIL1

SAS #9A

SAS #7

CACT0

SAS #8CCAFAIL0

ACTA

Safety Information and Technical Speciﬁcations

Rear LED Indicators
Hard Drive Activity

Failure LED

SAS #0

Rear LEDD12

D5SAS #1

D13

D6SAS #2

D14

D7

SAS #3

D15

D8SAS #4

D18

D19

SAS #5

D21

D20SAS #6

D22

D23

SAS #7

D24

D29

SAS #8D25

D30

SAS #9D26

D31SAS #10

D27

D32

SAS #11

D28

D33

SAS #12

D40

D37

SAS #13

D41

D38

SAS #14

D42

D39

SAS #15D87

D88

2-9