SUPER®

ACT_IN

+12V

GND

GND

+5V

+12V

GND

GND

2

#2

IC

SIDEBAND #2

+5V

1

1

SAS825TQ+ +REV 2.0
48

BAR CODE

2

IC

#1

++

++

1

++

++

++

16
32

+
+
JP29:9072 RESETSIDEBAND #1

SAS-825TQ Backplane
USER'S GUIDE
Rev. 2.0

SAS-825TQ 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 anddocumentation, is the property of Supermicro and/or its licensors, and is supplied only under alicense. Any use or reproduction of this product is not allowed, except as expressly permitted by
the terms of said license.
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.
													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 2.0							Release Date: June 10, 2013
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 © 2013 by Super Micro Computer, Inc.
All rights reserved.

Printed in the United States of America

Preface

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

Chapter 1 SAS-825TQ Safety Guidelines
1-1

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

1-2

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

1-3

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

1-4

Introduction to the SAS-825TQ Backplane...................................................... 1-2

Chapter 2 Connectors, Jumpers and Pin Definitions
2-1

Front Connectors and SAS Ports.................................................................... 2-1
Front Connectors............................................................................................. 2-1
SAS Ports......................................................................................................... 2-1

2-2

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

2-3

Front Jumper Locations and Pin Definitions.................................................... 2-4
Explanation of Jumpers................................................................................... 2-4
SGPIO and I2C Modes and Jumper Settings.................................................. 2-5
SAS Port Connections in I2C and SGPIO Settings ........................................ 2-7
Front LED Indicators........................................................................................ 2-7

2-4

Rear Connectors and LED Indicators.............................................................. 2-8iii

SAS-825TQ 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.
3F, No. 150, Jian 1st Rd.
Zhonghe Dist., New Taipei City 23511
Taiwan (R.O.C)

Tel:+886-(2) 8226-3990

Fax:+886-(2) 8226-3992

Web Site:www.supermicro.com.tw

Technical Support:
Email:

support@supermicro.com.tw

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

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

SAS-825TQ Backplane User’s Guide

Notes

vi

Chapter 1: Safety Guidelines

Chapter 1
SAS-825TQ 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 SAS-825TQ backplane.

• Disconnect the power cable before installing or removing any cables from theSAS-825TQ backplane.

• Make sure that the SAS-825TQ backplane is securely and properly installed on
the motherboard to prevent damage to the system due to power shortage.

1-1

SAS-825TQ 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 SAS-825TQ Backplane

The SAS-825TQ backplane has been designed to utilize the most up-to-date technology available, providing your system with reliable, high-quality performance.
This manual reflects SAS-825TQ Revision 2.0, the most current release available atthe time of publication. Always refer to the Supermicro Web site at www.supermicro.
com for the latest updates, compatible parts and supported configurations.

1-2

Chapter 2: Safety Guidelines

Chapter 2
Connectors, Jumpers and Pin Definitions

Front Connectors and SAS Ports
1
+12V

GND

GND

+5V

+12V

GND

GND

10
1

+5V

1

15 16 18

14

13

12

ACT_IN

SAS825TQ+ +REV 2.0

++

++

++

++
+
+
JP29:9072 RESET

11
1

BAR CODE

48

1

2

#2

IC

SIDEBAND #2

1

++

2-1

16

17

2

#1

IC

32

SIDEBAND #1

19

Figure 2-1: Front Connectors

Front Connectors

SAS Ports

1. 4-pin power connector: JP13

12. SAS Port #0

2. 4-pin power connector: JP10

13. SAS Port #1

3. CD-ROM/floppy connector: JP18

14. SAS Port #2

4. CD-ROM/floppy connector: JP17

15. SAS Port #3

5.

16. SAS Port #4

SAS activity LED header: JP26

6. I2C connector #2: JP45

17. SAS Port #5

7. I2C connector #1: JP44

18. SAS Port #6

8. Sideband connector #2: JP52

19. SAS Port #7

9. Sideband connector #1: JP51
10. MG9072 chip
11. Upgrade header: JP46
ACT_IN

GND

GND

118

+5V

1

+ +

115

+12V

++

19
1
+5V

+
+

JP29:9072 RESET

++

GND

14
1

17
1

48

1

++

GND

16
32

#2

13
1

BAR CODE2IC

SIDEBAND #2

16
1

SAS825TQ
REV 2.0

Figure 2-2: Front SAS Ports

2-1

2

IC

1

++

+12V

#1

112

SIDEBAND #1++

SAS-825TQ Backplane User's Guide

2-2

Front Connector and Pin Definitions#1 and #2 Backplane Main Power Connectors

Backplane
Main Power
4-Pin Connector

The 4-pin connectors, designated JP10, andJP13 provide power to the backplane. See
the table on the right for pin definitions.

Pin#            Definition     
1+12V2 and 3Ground4#3 and #4 CD-ROM/Floppy Pin Connectors

CD-ROM/FDD Power
4-Pin Connector

Pin connectors designated J17 and J18,
provide power to the CD-ROM and floppy
drives. See the table on the right for pin
definitions.

Pin#            Definition     2 and 3Ground4+12V

SAS Activity LED Header
Pin Definitions
Pin #      Definition
ACT IN#0

6

ACT IN#4

2

ACT IN#1

7

ACT IN#5

3

ACT IN#2

8

ACT IN#6

4

ACT IN#3

9

ACT IN#7

5

Ground10

Empty

I2C Connector
Pin Definitions2

2-2

Pin #      Definition

1#6 and #7 I2C Connectors
The I C Connectors, designated JP44 andJP45, are used to monitor the HDD activity
and status. See the table on the right for pin
definitions.

+5V

1#5 Activity LED Headers
The activity LED header, designated JP26
is used to indicate the activity status ofeach SAS drive. The activity LED header islocated on the front panel. For the activity
lead header to work properly, connect to it
using a 10-pin LED cable. This is only used
when the activity LED is not supported by
the hard drive.

+5V

Pin#     Definition     
1

Data

2

Ground

3

Clock

4

No Connection

Chapter 2: Safety Guidelines#8 and #9 Sideband Headers

Sideband Headers

The sideband headers are designated JP51
and JP52. For SES-2 to work properly, youmust connect an 8-pin sideband cable. See
the table to the right for pin definitions.

#10 MG9072 Chip
The MG9072 is an enclosure management
chip that supports the SES-2 controller andSES-2 protocols.

#11 Upgrade Header
The upgrade header is designated JP46 and isused for manufacturing purposes only.

#12 to #19 SAS Ports
The SAS ports are used to connect the SAS
drive cables. The eight ports are designated#0 - #7. Each port is also compatible with
SATA drives.

2-3

Pin #      Definition

Pin #      Definition

2

SGPIO:SDIN;
I2C:
Backplane
Addressing

1

Controller
ID (SB6)

4SGPIO:SDOUT;
I2C: Reset3

GND (SB2)

6

GND (SB3)

5

SGPIO:SLOAD;
I2C: SDA

8

Backplane
ID (SB7)

7SGPIO:SCLOCK;
12C: SCL

10No Connection

9

No Connection

SAS-825TQ Backplane User's Guide

2-3

Front Jumper Locations and Pin Definitions
JP43
ACT_IN

GND

GND

+5V

+12V

GND

GND

JP36

1

#2

SIDEBAND #2

1

SAS825TQ
REV 2.0

48

1

++

++

+ +

++

+
+
JP29:9072 RESET

JP29
JP50
JP38

++

JP18

2

IC

+5V

BAR CODE

2

IC

#1

++

+12V

JP37
JP33
JP34
JP41
JP40
Figure 2-3: Front Jumpers
16

32

SIDEBAND #1

JP42

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

3

Connector
Pins

2

1

Open, jumper off
the pins.
JumperClosed, jumper on
the pins.
3

2

1

Setting

the jumper is off the pins.

Jumper Settings
JumperJumper Settings

Note

JP29

Open (Jumper off the pins): Default
Closed (Jumper on the pins): Reset

MG9072 chip reset

JP18

Open (Jumper off the pins): Default
Closed (Jumper on the pins): Reset

Buzzer reset**The buzzer sound indicates that a condition requiring immediate attention has
occurred.
The buzzer alarm is triggered by the following conditions:
1. Hard drive failure
2. System temperature over 45º Celsius.

2-4Chapter 2: Safety Guidelines

SGPIO and I2C Modes and Jumper Settings
This backplane can utilize SGPIO or I2C, which is the default mode and can beused without making changes to your jumpers. The following information describes
which jumper must be configured to use SGPIO mode.
SGPIO Settings
JumperJumper Setting

Notes

JP33

1-2

Controller ID #1

JP34

1-2

Backplane ID #1
1-2: ID#0

JP36

1-2

Controller ID #2

JP37

1-2

Backplane ID #2
1-2: ID#0

JP38

Open (Jumper off the pins)

I2C Reset #2

JP40

Closed (Jumper on the pins)

I2C Reset_SDOUT#1

JP41

Closed (Jumper on the pins)

I2C Reset_SDOUT#2

JP42

1-2

I2C Backplane ID_SDIN#1

JP43

1-2

I2C Backplane ID_SDIN#2

JP50

Open (Jumper off the pins)

I2C Reset #1

2-5

SAS-825TQ Backplane User's GuideI2C Settings (Default)
JumperJumper Setting

Notes

JP33

2-3

Controller ID #1

JP34

1-2

Backplane ID #1
1-2: ID#0
2-3: ID#1

JP36

2-3

Controller ID #2

JP37

2-3

Backplane ID #2
1-2: ID#0
2-3: ID#1

JP38

Closed (Jumper on the pins)

I2C Reset #2

JP40

Open (Jumper off the pins)

I2C Reset_SDOUT#1

JP41

Open (Jumper off the pins)

I2C Reset_SDOUT#2

JP42

2-3

I2C Backplane ID_SDIN#1

JP43

2-3

I2C Backplane ID_SDIN#2

JP50

Closed (Jumper on the pins)

I2C Reset #1

2-6

Chapter 2: Safety Guidelines

SAS Port Connections in I2C and SGPIO Settings
Use the following chart when connecting this backplane. If the SAS ports are connected out of order, it is not easy to identify drives using the LED function.
SAS Port Connections in I2C and SGPIO Settings
Port #

I2C

SGPIO

#0-3

I2C #1

Sideband #1#4-7

I2C #2

Sideband #2

Front LED Indicators
ACT_IN

+12V

GND

GND

+5V

+12V

GND

GND

2

#2

IC

SIDEBAND #2

+5V

1

1

SAS825TQ+ +REV 2.0
48

BAR CODE

2

IC

#1

++

++

1

++

++

++

16
32

+
+

D3

JP29:9072 RESETSIDEBAND #1

Figure 2-4: Front LED

Front Panel LEDs
LED
D3

State

Specification

On

Overheat/drive failure LED indicator.
(Red light: Flashing. Buzzer: On, if activated)

2-7

SAS-825TQ Backplane User's Guide

Rear
Connector

SAS Drive
NumberSAS #0 J1

SAS/SATA HDD #0

SAS #4 J9

SAS/SATA HDD #4

SAS #1 J2

SAS/SATA HDD #1

SAS #5 J11

SAS/SATA HDD #5

SAS #2 J3SAS/SATA HDD #2

SAS #6 J13

SAS/SATA HDD #6

SAS #3 J4SAS/SATA HDD #3

SAS #7 J15

SAS/SATA HDD #7

Rear LED Indicators
Rear LED

Hard Drive Activity

Failure LED

SAS #0

D12

D5

SAS #1

D13

D6

SAS #2

D14

D7

SAS #3

D15

D8

SAS #4

D18

D19

SAS #5

D21

D20

SAS #6

D22

D23

SAS #7

D25

D26

2-8

ACT7
FAIL7
D26
D15

ACT3
FAIL3

D8

ACT6

D22
D23

FAIL6

ACT2

D14

D7

FAIL2

D21

ACT5

D20

FAIL5
ACT1

D13

D6

R155
R156

C106

FAIL1

ACT4

D18

D19

FAIL4
ACT0

D12

D5

SAS Drive
Number+Rear
Connector+

Rear SAS/SATA Connectors+

Figure 2-5: Rear Connectors and LEDs

D25
D26
D15
D8

+

+

D14
D7

SAS #7
J15
SAS #3
J4++

SAS #2
J3

D22
D23

+

+

SAS #6
J13

+

+

+

SAS #1
J2

+

D13
D6

+

D12
D5

D21
D20

SAS #5
J11+

SAS #0
J1

D18
D19

+

SAS #4
J9

D25

Rear Connectors and LED Indicators

FAIL0

2-4

Chapter 2: Safety Guidelines

Notes

2-9

SAS-825TQ Backplane User's Guide

Disclaimer (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 to perform be reasonably expected to result in significant injury or loss of life or catastrophic
property damage. Accordingly, Supermicro disclaims any and all liability, and shouldbuyer use or sell such products for use in such ultra-hazardous applications, it does soentirely at its own risk. Furthermore, buyer agrees to fully indemnify, defend and holdSupermicro 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 orsale.

2-10