Supero SC745TQ-R1200B, SC745TQ-R800B, SC745TQ-920B, SC745TQ-R800, SC745S2-R800 User Manual

SC745TQ-R1200B SC745TQ-920B

SC745TQ-R800(B) SC745S2-R800(B)

SC745TQ-800(B) SC745S2-800(B)

USER’S MANUAL

1.0a

SC745 CHASSIS

Series

SUPER

®

SC745 Chassis Manual

ii

Manual Revision 1.0a
Release Date: December 1, 2010

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 this

manual, please see our web site at www.supermicro.com.

Super Micro Computer, Inc. ("Supermicro") reserves the right to make changes to the product
described in this manual at any time and without notice. This product, including software and
documentation, is the property of Supermicro and/or its licensors, and is supplied only under a
license. 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 shall
be 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 this
product may expose you to lead, a chemical known to
the State of California to cause birth defects and other
reproductive harm.

Unless you request and receive written permission from Super Micro Computer, Inc., you may not
copy 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 mark
holders.

Copyright © 2010 by Super Micro Computer, Inc.
All rights reserved.

Printed in the United States of America

iii

Preface

Preface

About This Manual

This manual is written for professional system integrators and PC technicians. It

provides information for the installation and use of the SC745 4U chassis. Installa-

tion and maintenance should be performed by experienced technicians only.

Supermicro's SC745 chassis series is optimized for the latest Intel® Xeon® pro-

cessor 5500 series (Nehalem) and is also compatible with previous generation

Intel and AMD dual processor-based motherboards. Utilizing redundant, high-

efciency power supplies (85% and up) with the Gold Level 1200W option, and

eight hot-swappable 3.5" drive bays, this chassis offers reliable performance with

problem-free maintenance. Designed with 100% cooling redundancy via a combina-

tion of high-performance fans and an adjustable air-shroud capable of tting any

generation of motherboard, the SC745 minimizes the probability of system downtime

or performance degradation from thermal-related issues.

The SC745 features a ninety degree rotatable drive bay module, seven tool-less

expansion slots, and 6-pin power connectors supporting high-end graphics cards

and GPU cards. The SC745 is quick to congure and easy to operate.

For compatible backplane information, refer to the Supermicro Web site at www.

supermicro.com. For information on SCSI backplanes, contact the technical support

department of Supermicro computer.

SC745 Chassis Manual

iv

Manual Organization

Chapter 1: Introduction

The rst chapter provides a checklist of the main components included with this

chassis and describes the main features of the SC745 chassis. This chapter also

includes contact information.

Chapter 2: System Safety

This chapter lists warnings, precautions, and system safety. You should thoroughly

familiarize yourself with this chapter for a general overview of safety precautions

that should be followed before installing and servicing this chassis.

Chapter 3: Chassis Components

Refer here for details on this chassis model including the fans, bays, airow shields,

and other components.

Chapter 4: System Interface

Refer to this chapter for details on the system interface, which includes the functions

and information provided by the control panel on the chassis as well as other LEDs

located throughout the system.

Chapter 5: Chassis Setup and Installation

Refer to this chapter for detailed information on this chassis. You should follow the

procedures given in this chapter when installing, removing, or reconguring your

chassis.

Chapter 6: Rack Installation

Refer to this chapter for detailed information on chassis rack installation. You should

follow the procedures given in this chapter when installing, removing or reconguring

your chassis into a rack environment.

v

Preface

Appendix A: Chassis Cables

Appendix B: Power Supply Specications

Appendix C: SAS-743TQ Backplane Manual

SC745 Chassis Manual

vi

Table of Contents

Chapter 1 Introduction

1-1 Overview ............................................................................................1-1

1-2 Chassis Models .................................................................................1-1

1-3 Chassis Features .............................................................................. 1-2

CPU ...................................................................................................1-2

Hard Drives .......................................................................................1-2

I/O Expansion slots ...........................................................................1-2

Peripheral Drives ............................................................................... 1-2

Other Features ..................................................................................1-2

1-4 Contacting Supermicro ......................................................................1-3

Chapter 2 System Safety

2-1 Overview ............................................................................................2-1

2-2 Warnings and Precautions ................................................................2-1

2-3 Preparing for Setup ...........................................................................2-1

2-4 Electrical Safety Precautions.............................................................2-2

2-5 General Safety Precautions .............................................................. 2-3

2-6 System Safety ...................................................................................2-3

Chapter 3 Chassis Components

3-1 Overview ............................................................................................3-1

3-2 Components ......................................................................................3-1

Chassis .............................................................................................. 3-1

Backplane .......................................................................................... 3-1

Fans ...................................................................................................3-1

Mounting Rails (optional)...................................................................3-2

Power Supply ....................................................................................3-2

Air Shroud .........................................................................................3-2

3-3 Where to get Replacement Components .......................................... 3-2

Chapter 4 System Interface

4-1 Overview ............................................................................................4-1

4-2 Control Panel Buttons .......................................................................4-2

4-3 Control Panel LEDs ...........................................................................4-2

4-4 Drive Carrier LEDs ............................................................................4-4

SCSI Drives ....................................................................................... 4-4

vii

Preface

Chapter 5 Chassis Setup and Maintenance

5-1 Overview ............................................................................................5-1

5-2 Installation Procedures ......................................................................5-1

General Maintenance ........................................................................5-1

5-3 Removing the Chassis Front and Side Covers .................................5-2

The Side Cover .................................................................................5-2

The Front Cover ................................................................................5-3

5-4 Conguring the Storage Module .....................................................5-4

Tower or Rack Conguration .............................................................5-4

5-5 Installing Hard Drives ......................................................................5-13

5-6 Installing the Motherboard ...............................................................5-15

I/O Slot Shield ................................................................................5-15

Permanent and Optional Standoffs .................................................5-16

Installing the Motherboard ...............................................................5-17

Expansion Card and PCI Slot Setup ...............................................5-19

5-7 Installing the Air Shroud ..................................................................5-21

Installation Complete ....................................................................... 5-22

5-8 System Fans ................................................................................... 5-23

5-9 Power Supply .................................................................................5-25

Power Supply Failure ......................................................................5-25

Chapter 6 Rack Installation

6-1 Overview ............................................................................................6-1

6-2 Unpacking the System ......................................................................6-1

6-3 Preparing for Setup ...........................................................................6-1

Rack Precautions ..............................................................................6-2

General Server Precautions ..............................................................6-2

Rack Mounting Considerations .........................................................6-3

Ambient Operating Temperature ................................................... 6-3

Reduced Airow ............................................................................6-3

Mechanical Loading ......................................................................6-3

Circuit Overloading ........................................................................ 6-3

Reliable Ground ............................................................................6-3

6-4 Rack Mounting Instructions ...............................................................6-4

Removing the Top Cover and Feet ...................................................6-4

Identifying the Sections of the Rack Rails ........................................6-6

6-5 Tower Mounting Instructions............................................................6-10

SC745 Chassis Manual

viii

Appendix A SC745 Chassis Cables

Appendix B SC745 Power Supply Specications

Appendix C SAS-743TQ Backplane Specications

Chapter 1

Introduction

1-1 Overview

Supermicro’s SC745 4U chassis features a unique and highly-optimized design.

The chassis is equipped with high efciency power supply. High-performance

fans provide ample optimized cooling for FB-DIMM memory modules and eight

hot-swappable drive bays offer maximum storage capacity in a 4U form factor.

1-2 Chassis Models

Please visit the following link for the latest shipping lists and part numbers for your par-

ticular chassis model http://www.supermicro.com/products/chassis/4U/?chs=745

Chapter 1: Introduction

1-1

SC745 Chassis

Model CPU HDD I/O Slots

Power

Supply

SC745TQ-R1200B

DP/UP 8x SAS/SATA 7x FF

1200W

Redundant

(Gold Level)

SC745TQ-920B

DP/UP 8x SAS/SATA 7x FF

920W

(Platinum)

SC745TQ-R800(B)

DP/UP

8x SAS/

SATA

7x FF 800W

(Redundant)

SC745S2-R800(B)

DP/UP

8x U320

SCSI

2-Channel

7x FF

800W

(Redundant)

SC745TQ-800(B)

DP/UP

8x SAS/

SATA

7x FF 800W

SC745S2-800(B)

DP/UP

8x U320

SCSI

2-Channel

7x FF 800W

SC745 Chassis Manual

1-2

1-3 Chassis Features

The SC745 4U high-performance chassis includes the following features:

CPU

The SC745 chassis supports a DP/UP (dual processor/single processor). Please

refer to the motherboard specications pages on our Web site for updates on sup-

ported processors.

Hard Drives

The SC745 chassis features eight slots for U320 SCSI or SAS/SATA drives. These

drives are hot-swappable. Once set up correctly, these drives can be removed

without powering down the server. In addition, these drives support SAF-TE (SCSI)

and SES2 (SAS/SATA).

I/O Expansion slots

Each version of the SC745 chassis includes seven full I/O expansion card PCI

slots.

Peripheral Drives

Each SC745 chassis provides three 5.25” peripheral drive bays for oppy drive,

DVD-ROM/CD-ROM drive, or additional hard drives.

Other Features

Other onboard features are included to promote system health. These include cool-

ing fans, a convenient power switch, reset button, and ve LED indicators.

1-3

Chapter 1: Introduction

1-4 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)

Web Site: 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)

Asia-Pacic

Address: Super Micro Computer, Inc.

4F, No. 232-1, Liancheng Rd.

Chung-Ho 235, Taipei County

Taiwan, R.O.C.

Tel: [phone]

Fax: [phone]

Web Site: www.supermicro.com.tw

Technical Support:

Email: [e-mail]

Tel: [phone]

SC745 Chassis Manual

1-4

Notes

Chapter 2: System Safety

2-1

Chapter 2

System Safety

2-1 Overview

This chapter provides a quick setup checklist to get your chassis up and running.

Following the steps in the order given should enable you to have your chassis set up

and operational within a minimal amount of time. This quick setup assumes that you

are an experienced technician, familiar with common concepts and terminology.

2-2 Warnings and Precautions

You should inspect the box the chassis was shipped in and note if it was damaged

in any way. If the chassis itself shows damage, le a damage claim with carrier

who delivered your system.

Decide on a suitable location for the rack unit that will hold that chassis. It should

be situated in a clean, dust-free area that is well ventilated. Avoid areas where

heat, electrical noise and electromagnetic elds are generated.

You will also need it placed near at least one grounded power outlet. When con-

gured, the SC745 chassis includes one power supply. "R" models (for example

the SC745TQ-R800B chassis) include a redundant power supply and require two

grounded outlets.

2-3 Preparing for Setup

The SC745 chassis includes a set of rail assemblies, including mounting brackets

and mounting screws you will need to install the systems into the rack. Please read

this manual in its entirety before you begin the installation procedure.

SC745 Chassis Manual

2-2

2-4 Electrical Safety Precautions

Basic electrical safety precautions should be followed to protect yourself from harm

and the SC745 from damage:

Be aware of the locations of the power on/off switch on the chassis as well •

as the room’s emergency power-off switch, disconnection switch or electrical

outlet. If an electrical accident occurs, you can then quickly remove power from

the system.

Do not work alone when working with high-voltage components.•

Power should always be disconnected from the system when removing or in-•

stalling main system components, such as the serverboard, memory modules

and the DVD-ROM (not necessary for hot-swappable drives). When discon-

necting power, you should rst power-down the system with the operating

system and then unplug the power cords from all the power supply modules

in the system.

When working around exposed electrical circuits, another person who is fa-•

miliar with the power-off controls should be nearby to switch off the power, if

necessary.

Use only one hand when working with powered-on electrical equipment. This •

is to avoid making a complete circuit, which will cause electrical shock. Use

extreme caution when using metal tools, which can easily damage any electrical

components or circuit boards they come into contact with.

Do not use mats designed to decrease electrostatic discharge as protection from •

electrical shock. Instead, use rubber mats that have been specically designed

as electrical insulators.

The power supply power cord must include a grounding plug and must be •

plugged into grounded electrical outlets.

Serverboard battery: CAUTION - There is a danger of explosion if the onboard •

battery is installed upside down, which will reverse its polarities. This battery

must be replaced only with the same or an equivalent type recommended by

the manufacturer. Dispose of used batteries according to the manufacturer’s

instructions.

Chapter 2: System Safety

2-3

Handle used batteries carefully. Do not damage the battery in any way, a dam-•

aged battery may release hazardous materials into the environment. Do not

discard a used battery in the garbage or a public landll. Please comply with

the regulations set up by your local hazardous waste management agency to

dispose of your used battery properly.

DVD-ROM laser: CAUTION - This server may have come equipped with a •

DVD-ROM drive. To prevent direct exposure to the laser beam and hazardous

radiation exposure, do not open the enclosure or use the unit in any uncon-

ventional way.

2-5 General Safety Precautions

Keep the area around the chassis clean and free of clutter.•

Place the chassis top cover and any system components that have been re-•

moved away from the system or on a table so that they won’t accidentally be

stepped on.

While working on the system, do not wear loose clothing such as neckties and •

unbuttoned shirt sleeves, which can come into contact with electrical circuits or

be pulled into a cooling fan.

Remove any jewelry or metal objects from your body, which are excellent metal •

conductors that can create short circuits and harm you if they come into contact

with printed circuit boards or areas where power is present.

After accessing the inside of the system, close the system back up and secure •

it to the rack unit with the retention screws after ensuring that all connections

have been made.

2-6 System Safety

Electrostatic discharge (ESD) is generated by two objects with different electrical

charges coming into contact with each other. An electrical discharge is created to

neutralize this difference, which can damage electronic components and printed

circuit boards. The following measures are generally sufcient to neutralize this

difference before contact is made to protect your equipment from ESD:

Do not use mats designed to decrease electrostatic discharge as protection from •

electrical shock. Instead, use rubber mats that have been specically designed

as electrical insulators.

SC745 Chassis Manual

2-4

Use a grounded wrist strap designed to prevent electrostatic discharge.•

Keep all components and printed circuit boards (PCBs) in their antistatic bags •

until ready for use.

Touch a grounded metal object before removing any board from its antistatic •

bag.

Do not let components or PCBs come into contact with your clothing, which may •

retain a charge even if you are wearing a wrist strap.

Handle a board by its edges only; do not touch its components, peripheral chips, •

memory modules or contacts.

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

Put the serverboard and peripherals back into their antistatic bags when not •

in use.

For grounding purposes, make sure your computer chassis provides excellent •

conductivity between the power supply, the case, the mounting fasteners and

the serverboard.

3-1

Chapter 3: Chassis Components

Chapter 3

Chassis Components

3-1 Overview

This chapter describes the most common components included with your chassis.

Some components listed may not be included or compatible with your particular

chassis model. For more information, see the installation instructions detailed later

in this manual.

3-2 Components

Chassis

Chassis may include the following three options:

Eight hot-swappable 3.5" hard drives•

Up to three GPUs •

Seven expansion slots•

For the latest shipping lists, visit our Web site at: http://www.supermicro.com.

This chassis accepts three hot-swappable system cooling fans and one (sometimes

two) power supplies. SC745 models come in beige and black.

Backplane

Each SC745 chassis comes with a 4U backplane. Depending on your order, your

backplane will support SAS/SATA or SCSI. For more information regarding compat-

ible SAS/SATA backplanes, view the appendices found at the end of this manual. For

SCSI backplane information, contact the Supermicro Technical Support department

at http://www.supermicro.com/support/. Additional information can be found on our

Web site at http://www.supermicro.com.

SC745 Chassis Manual

3-2

Fans

The SC745 chassis accepts three system fans and two rear exhaust fans. System

fans for SC745 chassis are powered from the serverboard. These fans are 4U high

and are powered by 4-pin connectors.

Mounting Rails (optional)

The SC745 can be placed in a rack for secure storage and use. To setup your

rack, follow the step-by-step instructions included in this manual.

Power Supply

Each SC745 chassis model includes a high-efciency (85% and higher) power

supply with thermal control fan, with options rated at 800, 920 and 1200 Watts. In

the unlikely event your power supply fails, replacement is simple and can be done

without tools.

Air Shroud

Air shrouds are shields, usually plastic, that funnel air directly to where it is needed.

Always use the air shroud included with your chassis.

3-3 Where to get Replacement Components

Though not frequently, you may need replacement parts for your system. To en-

sure the highest level of professional service and technical support, we strongly

recommend purchasing exclusively from our Supermicro Authorized Distributors /

System Integrators / Resellers. A list of Supermicro Authorized Distributors / System

Integrators /Reseller can be found at: http://www.supermicro.com. Click the Where

to Buy link.

4-1

Chapter 4: System Interface

Chapter 4

System Interface

4-1 Overview

There are several LEDs on the control panel as well as others on the drive carriers

to keep you constantly informed of the overall status of the system, as well as the

activity and health of specic components. Most SC745 models have two buttons

on the control panel, a reset button and an on/off switch. This chapter explains

the meanings of all LED indicators and the appropriate response you may need

to take.

Figure 4-1: Front LEDs

Chassis Manual

4-2

4-2 Control Panel Buttons

There are two push-buttons located on the front of the chassis. These are the power

on/off button and the reset button.

Power:• The main power switch is used to apply or remove power from the

power supply to the server system. Turning off the system power with this but-

ton removes the main power but keeps standby power supplied to the system.

Therefore, you must unplug system before servicing.

Reset:• The reset button is used to reboot the system.

4-3 Control Panel LEDs

The control panel is located on the front of the SC745 chassis and has ve LEDs.

These LEDs provide you with critical information related to different parts of the

system. This section explains what each LED indicates when illuminated and any

corrective action you may need to take.

Overheat/Fan Fail:• When this LED ashes it indicates a fan failure. When

continuously on (not ashing) it indicates an overheat condition, which may be

caused by cables obstructing the airow within the system or the ambient room

temperature being too warm. Check the routing of the cables and make sure all

fans are present and operating normally. Check to make sure that the chassis

covers are installed. Finally, verify that the heatsinks are installed properly. This

LED will remain ashing or on as long as the overheat condition exists.

4-3

Chapter 4: System Interface

NIC2:• Indicates network activity on GLAN2 when ashing.

NIC1:• Indicates network activity on GLAN1 when ashing.

HDD:• Indicates IDE channel activity. SAS/SATA drive, SCSI drive, and/or DVD-

ROM drive activity when ashing.

Power:• Indicates power is being supplied to the system's power supply units.

This LED should normally be illuminated when the system is operating.

Chassis Manual

4-4

4-4 Drive Carrier LEDs

Your chassis uses SAS/SATA or SCSI drives, but not both.

SAS/SATA Drives

Each SAS/SATA drive carrier has two LEDs.

Green:• Each SAS/SATA drive carrier has a green LED. When illuminated, this

green LED (on the front of the SAS/SATA drive carrier) indicates drive activity.

A connection to the SATA backplane enables this LED to blink on and off when

that particular drive is being accessed.

Red:• The red LED to indicate an SAS/SATA drive failure. If one of the SAS/SATA

drives fail, you should be notied by your system management software.

SCSI Drives

Each SCSI drive carrier has two LEDs.

Green:• When illuminated, the green LED on the front of the SCSI drive carrier

indicates drive activity. A connection to the SCSI SCA backplane enables this

LED to blink on and off when that particular drive is being accessed.

Red:• The SAF-TE compliant backplane activates the red LED to indicate a drive

failure. If one of the SCSI drives fail, you should be notied by your system

management software.

5-1

Chapter 5: Chassis Setup and Maintenance

Chapter 5

Chassis Setup and Maintenance

5-1 Overview

This chapter covers the steps required to install components and perform mainte-

nance on the chassis. The only tool you will need to install components and perform

maintenance is a Phillips screwdriver. Print this page to use as a reference while

setting up your chassis.

5-2 Installation Procedures

Removing the Chassis Front and Side Coversr•

Conguring the Storage Module•

Installing Hard Drives•

Installing the Motherboard•

Installing the Air Shroud and Checking the Airow •

General Maintenance

General Maintenance: Systems Fans

General Maintenance: Power Supply

Review the warnings and precautions listed in the manual be­fore setting up or servicing this chassis. These include infor­mation in Chapter 2: System Safety and the warning/precau­tions listed in the setup instructions.

Warning: Except for short periods of time, do NOT operate the
server without the cover in place. The chassis cover must be

in place to allow proper airow and prevent overheating.

!

!

SC745 Chassis Manual

5-2

5-3 Removing the Chassis Front and Side Covers

Figure 5-1: Removing the Chassis Cover

Side Cover

The Side Cover

Removing the Chassis Side Cover

Push the cover latch button to release the latch handle.1.

Pull the cover off the chassis using the latch handle. 2.

Replacing the Chassis Side Cover

With the latch handle open slide the cover back onto the chassis.1.

Press the latch downward when the cover is in place.2.

Cover Latch

Handle

Cover Latch

Button

5-3

Chapter 5: Chassis Setup and Maintenance

The Front Cover

The front cover houses up to eight hot-swappable hard drives. The cover can be

locked to prevent unauthorized access. The key to this lock is shipped with the

system.

Removing the Front Cover

Unlock the front cover using the key shipped with the system.1.

Pull the cover open using the handle near the lock.2.

Front Cover

Front Cover Lock

Figure 5-2: Opening the Front Cover

SC745 Chassis Manual

5-4

5-4 Conguring the Storage Module

Storage Module

Tower or Rack Conguration

The SC745 chassis is shipped in tower mode and can be immediately used as

desktop server. If the chassis is to be used in a rack, you must turn the storage

module ninety degrees. This can be done before, during, or after setup.

Figure 5-4: Chassis in Rack Mount Mode

Figure 5-3: Chassis in Tower Mode

Storage Module

5-5

Chapter 5: Chassis Setup and Maintenance

Rotating the Storage Module for Rack Mounting

Open the chassis cover.1.

Locate the storage module and disconnect any cables from the storage mod-2.

ule to any component in the chassis.

Push the storage module release lever. This lever unlocks the storage mod-3.

ule.

Grasp the external edges of the storage module and pull the unit from the 4.

chassis.

Turn the storage module ninety degrees (as illustrated).5.

Reinsert the module into the chassis and reconnect the cords.6.

Storage Module

Release Lever

Storage Module

Figure 5-5: Remove the Storage Module

SC745 Chassis Manual

5-6

Adding Drives to the Storage Module

The storage module includes three full-sized drive bays and the front LED panel.

The storage module can be set up one of three ways:

A. Add up to three extra hard drives to the drive trays.

B. Add up to three peripheral drives (CD-ROM, DVD-ROM, etc.) drive trays.

C. Add ve hot swappable hard drives to the storage module. This conguration

requires a mobile rack. More information on mobile racks can be found at the

Supermicro Web site at www.supermicro.com

Figure 5-6: Chassis Storage Module

5-7

Chapter 5: Chassis Setup and Maintenance

Drive Tray

Release Tabs

Adding up to Three Peripheral/Hard Drives to the Drive Trays

Open the chassis cover.1.

Locate the drive tray release tab for the slot you want to place the peripheral 2.

drive.

Push the drive tray toward the front of the chassis.3.

Figure 5-7: Remove Drive Tray

SC745 Chassis Manual

5-8

Place the hard drive into the hard drive tray. Make sure the type of hard drive 4.

(SAS/SATA or SCSI) is supported by the motherboard. The hard drive may

not completely ll the tray.

Secure the hard drive to the tray with four screws from the bottom.5.

Slide the hard drive into the chassis until the tray clicks into place.6.

Repeat these steps for each hard drive tray.7.

Hard Drive

Hard Drive Tray

Figure 5-8: Add a Hard Drive to the Drive Tray

5-9

Chapter 5: Chassis Setup and Maintenance

Drive Tray

Release Tabs

Up to three peripheral drives (DVD-ROM, CD-ROM and others) may be added to

the drive trays.

Adding up to Three Peripheral Drives to the Drive Trays

Open the chassis cover.1.

Locate the drive tray release tab for the slot you want to place the peripheral 2.

drive.

Push the drive tray toward the front of the chassis.3.

Figure 5-9: Remove Drive Tray

SC745 Chassis Manual

5-10

Remove the hard drive tray rails from the hard drive tray. To do this, you must 4.

remove two screws from each side.

Attach the rails to a DVD-ROM, CD-ROM or other peripherals. The rails 5.

should t any standard sized peripherals.

Slide the peripheral into the chassis until the tray clicks into place.6.

Repeat these steps for each hard drive tray.7.

Hard Drive Rails

Hard Drive Tray

Figure 5-10: Add Hard Drive Rails to the DVD-ROM Drive

5-11

Chapter 5: Chassis Setup and Maintenance

Drive Tray

Release Tabs

The SC745 chassis accepts an M35TQ or M35S (SCSI) mobile rack to install extra

hot-swappable hard drives. The mobile rack goes into the storage module which

goes into the chassis.

For more information on mobile racks, visit the Supermicro Web site at www.

supermicro.com.

Adding Five Hard Drives Using A Supermicro Mobile Rack

Open the chassis cover.1.

Locate the drive release tabs.2.

Pull the rst drive release tab and push the drive tray toward the front of the 3.

chassis. Repeat this for all three tabs.

Figure 5-11: Remove Drive Tray

SC745 Chassis Manual

5-12

Mobile Rack

Hard Drive

Rails

Remove the hard drive tray rails from the hard drive tray. To do this, you must 4.

remove two screws from each side. Do this for all three hard drive trays.

Attach the rails to a DVD-ROM, CD-ROM or other peripheral. The rails should 5.

t any standard sized peripherals.

Hard Drive Rails

Hard Drive Tray

Figure 5-12: Remove the Hard Drive Rails

Figure 5-13: Add Hard Drive Rails to Storage Rack

Install all six hard drive rails to the mobile rack. Each individual rail requires 6.

two screws. Also, make sure the arrow on the rail points toward the front of

the chassis.

Slide the mobile rack into the storage module and chassis.7.

5-13

Chapter 5: Chassis Setup and Maintenance

The drives are mounted in drive carriers to simplify their installation and removal

from the chassis. These carriers also help promote proper airow for the drive

bays.

Installing Hard Drives to the Chassis

Unlock and open the chassis cover.1.

Press the release button to extend the drive tray handle.2.

Using the handle, pull the drive tray out by the handle. The drive is 3.

hot-swappable and there are no cables to disconnect.

Drive Tray Handle

Release Button

Figure 5-14: Install Hard Drives

5-5 Installing Hard Drives

SC745 Chassis Manual

5-14

Figure 5-15: Remove Dummy Drive Tray

Secure the hard drive to the tray using four screws.6.

Insert the hard drive into the chassis using the following steps: 7.

7a. Press the hard drive release button to extend the drive tray handle.

7b. Insert the hard drive into the chassis and close the handle to lock the

hard drive into place.

Figure 5-16: Install Hard Drive

Drive Tray

Remove the screws holding the drive tray to the dummy drive.4.

Place a hard drive in the drive tray.5.

SAS/SATA or SCSI

Hard Drive

5-15

Chapter 5: Chassis Setup and Maintenance

I/O Shield

5-6 Installing the Motherboard

I/O Shield

The I/O shield holds the motherboard ports in place. Install the I/O shield before

you install the motherboard.

Figure 5-17: SC745 Chassis I/O Shield

Installing the I/O Shield:

Review the documentation that came with your motherboard. Become familiar 1.

with component placement, requirements, and precautions.

Open the chassis cover.2.

Choose the proper I/O shield for the motherboard you are installing.3.

With the illustrations facing the outside of the chassis, place the shield into 4.

the space provided. Once installed, the motherboard ports will hold the I/O

shield in place.

SC745 Chassis Manual

5-16

Permanent and Optional Standoffs

Standoffs prevent short circuits by securing space between the motherboard and

the chassis surface. The SC745 chassis packaging includes optional standoffs

(hexagonal-shaped posts). These standoffs accept the rounded Phillips head screws

which are also included in the SC745 accessories package.

Figure 5-18: Chassis Standoffs

Standoffs

5-17

Chapter 5: Chassis Setup and Maintenance

Installing the Motherboard

Motherboard Installation

Review the documentation that came with your motherboard. Become familiar 1.

with component placement, requirements, and precautions.

Disconnect the power supply and lay the chassis on a at surface.2.

Open the chassis cover.3.

As required by your motherboard, install standoffs in any areas that do not 4.

have a permanent standoff.

Lay the motherboard on the chassis aligning the permanent and optional 5.

standoffs. Compare the holes in the chassis to those in the motherboard and

add or remove standoffs as needed.

Secure the motherboard to the chassis using the rounded, Phillips head 6.

screws. Do not exceed eight pounds of torque when tightening down the

motherboard.

Secure the CPU(s), heatsinks, and other components to the motherboard, 7.

chassis, and/or backplane as needed.

SC745 Chassis Manual

5-18

Power Supply Connections

Connect each of the following cables as required by your motherboard manufacturer.

In some instances not all of these cables are required, and some cables may not

be included with the motherboard.

Power Supply Cable

Name No. Connects to Description

20-pin or 24-pin
power cable

1 motherboard

20-pin or 24-pin power cable pro­vides electricity to the motherboard.
Has 20 - 24 yellow, black, gray, red,
orange, green and blue wires.

HDD (Hard Drive)
power cable

2 backplane

Each cable has three connectors
(two hard drive connectors and one

oppy drive [FDD] connector). Attach

the HDD connectors to the back­plane. If you are using a SuperMi-

cro backplane, the FDD connector
does not need to be attached.

8-pin mother­board cable

1 motherboard

Provides power to the motherboard
CPU. This cable has 2 black and 2
yellow wires.

4-pin mother­board cable

1 motherboard

Provides power to expansion card.
This cable has two black and two
yellow wires.

5-pin SMBus
power cable
(small)

1 motherboard

Allows the SM (System Manage­ment) bus to monitor power supply

2-pin INT cable 1 motherboard

Intrusion detection cable allows the
system to log when the server chas­sis has been opened.

5-19

Chapter 5: Chassis Setup and Maintenance

Expansion Card and PCI Slot Setup

After the motherboard has been installed, expansion cards may be installed.

Installing Expansion Cards

Locate the release tab on the top of the PCI slot bracket.1.

Gently apply pressure in the middle of the release tab to unlock the PCI slot 2.

bracket.

Pull the release tab upward.3.

Press the Middle

of the Release Tab

Lift the

Release Tab

Figure 5-19: Add-on Card/Expansion Card Port

SC745 Chassis Manual

5-20

Remove the screw holding the bracket in place and pull the bracket from the 4.

chassis.

Install your PCI card or other add-on card into the PCI slot bracket and moth-5.

erboard. To do this, slide the PCI card (with "L" bracket) into the PCI slot and

secure the card to the motherboard.

Push the PCI bracket release tab down until it locks into place with an audible 6.

"click".

Secure the PCI card with the screw previously removed from the chassis.7.

Repeat this process with each PCI card you want to install into the chassis.8.

Figure 5-20: Remove PCI Card Slot Guard

5-21

Chapter 5: Chassis Setup and Maintenance

5-7 Installing the Air Shroud

Figure 5-21: Air Shroud

Air shrouds concentrate airow to maximize fan efciency. The SC745 chassis air

shroud does not require screws to set up.

NOTE: The air shroud includes tabs that can be removed if motherboard compo-

nents prevent the air shroud from tting securely. Remove tabs only if necessary.

Installing the Air Shroud

Remove the chassis cover.1.

Place air shroud in your chassis with the fan side touching the edge of the 2.

two fans closest to the power supply. The other side should cover both the

rear fans.

Replace the chassis cover.3.

Removable Tabs

SC745 Chassis Manual

5-22

Figure 5-22: Air Shroud in Place

Checking the Airow

Make sure there are no objects to obstruct airow in and out of the server. In 1.

addition, if you are using a front bezel, make sure the bezel's lter is replaced

periodically.

Do not operate the server without drives or drive trays in the drive bays. Use 2.

only recommended server parts.

Make sure no wires or foreign objects obstruct the airow through the chas-3.

sis. Pull all excess cabling out of the airow path or use shorter cables.

The control panel LEDs inform you of system status. See “Chapter 3: System 4.

Interface” for details on the LEDs and the control panel buttons.

Installation Complete

In most cases, the chassis power supply and fans are pre-installed. If you need to

install fans or a power supply, continue to the Systems Fan section of this chapter.

If the chassis will be installed into a rack, continue to the next chapter for rack

installation instructions.

Air Shroud

5-23

Chapter 5: Chassis Setup and Maintenance

Five heavy-duty fans provide cooling for the chassis. Three fans are located in the

front of the chassis with two fans in the rear. These fans circulate air through the

chassis as a means of lowering the internal temperature of the chassis.

The fans come pre-installed to the chassis. Each fan is hot-swappable and can be

replaced without removing any connections.

5-8 System Fans

Replacing a System Fan

Open the chassis cover and determine which fan has failed. Because the fans 1.

are hot-swappable, the chassis does not have to be powered-down.

Press the fan release tab and lift the failed fan from the chassis. Front fans 2.

must be pulled straight up. Rear fans must be tilted forward and then pulled

out of the housing.

Place the new fan into the vacant space in the housing while making sure the 3.

arrows on the top of the fan (indicating air direction) point in the same direc-

tion as the arrows on the other fans. As soon as the fan is connected, it will

begin working.

Figure 5-23: Front Chassis Fans

Fan Release Tab

SC745 Chassis Manual

5-24

Rear Fan Release Tab

Figure 5-24: Rear Chassis Fans

Replacing a Rear Chassis Fan

Press the rear fan release tab.1.

Pull the fan from the chassis top rst.2.

Place the new fan in the chassis bottom rst.3.

Push the fan fully into the housing until the fan clicks into place.4.

5-25

Chapter 5: Chassis Setup and Maintenance

Depending on your chassis model, the SC745 chassis has an 800, 920 or 1200

Watt power supply. "R" model chassis feature a second redundant power supply.

This power supply is auto-switching capable. This enables it to automatically sense

and operate at a 100v to 240v input voltage. An amber light will be illuminated on

the power supply when the power is off. An illuminated green light indicates that

the power supply is operating.

Power Supply Failure

In redundant power supply models, the system automatically switches to the second

power supply when the rst fails. If your system has only one power supply, the

system shuts down in the unlikely event of a power failure.

5-9 Power Supply

Replacing the Power Supply

Power down the server and unplug the power cord. If your chassis includes 1.

a redundant power supply (at least two power modules), you can leave the

server running and remove only one power supply.

Push the release tab on the back of the power supply.2.

Pull the power supply out using the handle provided.3.

Replace the failed power module with the same model.4.

Push the new power supply module into the power bay until it clicks into the 5.

locked position.

Plug the AC power cord back into the module and power up the server.6.

SC745 Chassis Manual

5-26

Notes

6-1

Chapter 6: Rack Installation

Chapter 6

Rack Installation

6-1 Overview

This chapter provides a quick setup checklist to get your chassis up and running.

Following these steps in the order given should enable you to have the system

operational within a minimum amount of time.

6-2 Unpacking the System

You should inspect the box the chassis was shipped in and note if it was damaged

in any way. If the chassis itself shows damage you should le a damage claim with

the carrier who delivered it.

Decide on a suitable location for the rack unit that will hold your chassis. It should

be situated in a clean, dust-free area that is well ventilated. Avoid areas where

heat, electrical noise and electromagnetic elds are generated. You will also need

it placed near a grounded power outlet. Be sure to read the Rack and Server Pre-

cautions in the next section.

6-3 Preparing for Setup

The box your chassis was shipped in should include two sets of rail assemblies,

two rail mounting brackets and the mounting screws you will need to install the

system into the rack. Please read this section in its entirety before beginning the

installation procedures

Choosing a Setup Location

Leave enough clearance in front of the rack to open the front door completely •

(25 inches).

Leave approximately 30 inches of clearance in the back of the rack to allow for •

sufcient airow and ease in servicing.

This product is to be installed in a Restricted Access Location only, (dedicated •

equipment rooms, service closets and others).

SC745 Chassis Manual

6-2

Rack Precautions

Ensure that the leveling jacks on the bottom of the rack are fully extended to •

the oor with the full weight of the rack resting on them.

In single rack installation, stabilizers should be attached to the rack.•

In multiple rack installations, the racks should be coupled together.•

Always make sure the rack is stable before extending a component from the •

rack.

You should extend only one component at a time - extending two or more si-•

multaneously may cause the rack to become unstable.

General Server Precautions

Review the electrical and general safety precautions that came with the com-•

ponents you are adding to your chassis.

Determine the placement of each component in the rack • before you install the

rails.

Install the heaviest server components on the bottom of the rack rst, and then •

work up.

Use a regulating uninterruptible power supply (UPS) to protect the server from •

power surges, voltage spikes and to keep your system operating in case of a

power failure.

Allow the hot plug hard drives and power supply modules to cool before touch-•

ing them.

Always keep the rack's front door and all panels and components on the servers •

closed when not servicing to maintain proper cooling.

Warnings and Precautions!

!

!

6-3

Chapter 6: Rack Installation

Rack Mounting Considerations

Ambient Operating Temperature

If installed in a closed or multi-unit rack assembly, the ambient operating tempera-

ture of the rack environment may be greater than the ambient temperature of the

room. Therefore, consideration should be given to installing the equipment in an

environment compatible with the manufacturer’s maximum rated ambient tempera-

ture (Tmra).

Reduced Airow

Equipment should be mounted into a rack so that the amount of airow required

for safe operation is not compromised.

Mechanical Loading

Equipment should be mounted into a rack so that a hazardous condition does not

arise due to uneven mechanical loading.

Circuit Overloading

Consideration should be given to the connection of the equipment to the power

supply circuitry and the effect that any possible overloading of circuits might have

on overcurrent protection and power supply wiring. Appropriate consideration of

equipment nameplate ratings should be used when addressing this concern.

Reliable Ground

A reliable ground must be maintained at all times. To ensure this, the rack itself

should be grounded. Particular attention should be given to power supply connec-

tions other than the direct connections to the branch circuit (i.e. the use of power

strips, etc.).

SC745 Chassis Manual

6-4

6-4 Rack Mounting Instructions

This section provides information on installing the SC745 chassis into a rack unit

with the rails provided. There are a variety of rack units on the market, which may

mean the assembly procedure will differ slightly. You should also refer to the instal-

lation instructions that came with the rack unit you are using.

NOTE: The outer rail is adjustable from 26" to 38.25".

Removing the Top Cover and Feet

The SC745 chassis is shipped with the chassis cover and feet pre-installed. Both

the feet and cover must be removed for before installing the rails.

Chassis Cover

Chassis Feet

Figure 6-1: Remove Feet and Chassis Top Cover

Chassis Cover Lock

6-5

Chapter 6: Rack Installation

Removing the Top Cover

Locate the chassis cover lock (blue lever) at the rear of the chassis cover.1.

Slide the chassis cover lock to the right and push chassis cover forward.2.

Lift the chassis top cover off the chassis.3.

Removing the Chassis Feet

Place the chassis on its side with the chassis side cover facing upward.1.

Remove the screw holding the chassis foot in place.2.

The foot lock is a tab located in the center of the foot that prevents the foot 3.

from sliding. Using a at head screwdriver, gently lift the foot lock upward

and slide the foot toward the rear of the chassis.

Repeat steps 2 and 3 with each remaining foot.4.

SC745 Chassis Manual

6-6

Figure 6-2: Identifying the Inner Rails and Chassis Handles

Chassis Handle

Inner Rails

Chassis Handle

Screw

Chassis Rail

Screw

Identifying the Sections of the Rack Rails

The chassis package includes two rack rail assemblies in the rack mounting kit.

Each assembly consists of two sections: an inner xed chassis rail that secures

directly to the server chassis and an outer xed rack rail that secures directly to

the rack itself.

6-7

Chapter 6: Rack Installation

Figure 6-3: Installing the Inner Rack Rails

Installing the Chassis Handles and Inner Rails

Locate the two chassis handles and six handle screws.1.

Align the chassis handle with the front of the chassis and secure with the 2.

three chassis handle screws.

Repeats steps 1 and 2 with the other handle.3.

Locate the two inner rails and twelve screws in the shipping package.4.

Align the inner rails against the chassis, as shown. Conrm that the rails are 5.

ushed against the edge of the chassis.

Tighten the screws. Do not over tighten.6.

Repeat steps 5 and 6 with the other inner rail.7.

SC745 Chassis Manual

6-8

Installing the Outer Rails onto the Rack

Attach the front and rear short brackets to the outside of the long bracket. 1.

Both bracket ends must face the same direction.

Adjust both the brackets to the proper distance so that the rail ts snugly into 2.

the rack.

Secure the front side of the outer rail with two M5 screws and the rear side of 3.

the outer rail with three M5 screws. NOTE: The outer rail is adjustable from

approximately 26" to 38.25".

Repeat steps 1-3 for the left outer rail.4.

Secure to the

Front of the Rack

Secure to the

Rear of the Rack

Figure 6-4: Assembling the Outer Rails

Attach to Middle Section

6-9

Chapter 6: Rack Installation

Figure 6-5: Installing the Chassis into a Rack

Installing the Chassis into a Rack

Conrm that chassis includes the inner rails and the outer rails. 1.

Line chassis rails with the front of the rack rails.2.

Slide the chassis rails into the rack rails, keeping the pressure even on both 3.

sides (it may be necessary to depress the locking tabs when inserting).

When the server has been pushed completely into the rack, you should hear

the locking tabs "click".

SC745 Chassis Manual

6-10

6-5 Tower Mounting Instructions

The SC745 chassis is shipped with the chassis cover and feet pre-installed. To use

the chassis as a desktop server, no other installation is required.

Use the instructions in this section if you have converted the chassis for rack use

and need to return the chassis to tower mounting.

Installing the Top Cover

Remove the rack mount ears.1.

Align the cover post with the corresponding holes on the top of the chassis 2.

and place the cover on top of the chassis. The cover should overhang ap-

proximately one-half inch over the front of the chassis.

Slide the chassis cover toward the rear of the chassis to lock the cover into 3.

place.

Chassis Cover

Chassis Feet

Figure 6-6: Adding Chassis Feet and Top Cover

Chassis Rack Mount

Ears

6-11

Chapter 6: Rack Installation

Placing the Chassis Feet

Place the chassis foot in the foot receptacle and slide the foot toward the 1.

front of the chassis. The foot should lock into place.

Secure the foot to the chassis using one screw enclosed in the packaging.2.

Repeat steps 1 and 2 for the remaining three chassis feet.3.

Chassis Foot

Receptacle

Chassis Foot

Figure 6-7: Placing Chassis Feet

Chassis Screw

SC745 Chassis Manual

6-12

Notes

A-1

Appendix A: Chassis Cables

Appendix A

SC745 Chassis Cables

A-1 Overview

This appendix lists supported cables for your chassis system. It only includes the

most commonly used components and congurations. For more compatible cables,

refer to the manufacturer of the motherboard you are using and our Web site at:

www.supermicro.com.

A-2 Cables Included with SC745TQ Chassis (SAS/SATA)

SC745TQ-R800/800

Part # Type Length Description

CBL-0157L Cable 40 cm

8-pin to 8-pin ribbon cable for SGPIO, PB
free

CBL-0087

Ribbon,

Round

20"

16-pin to 16-pin ribbon cable for control
panel

CBL-0139L Wire 50 cm IDE 80-Wire cable for DVD ROM

CBL-0044L Cable 24" Serial ATA, Lead free

CBL-0216L Cable 200 mm

4-pin to 4-pin fan power extension cable
(3)

CBL-0180L-01 SATA various

Set for 4 SATA Cables. Length varied to

minimize airow interference.

- Cable 6'

Regional power cord (X2 for redundant
power supply models)

A-3 Cables Included with SC745S Chassis (SCSI)

SC745S2-R800/800

Part # Type Length Description

CBL-033L-U320 Ribbon 9" (23 cm) ULTRA 320, PB free

CBL-0087

Ribbon,

Round

20"

16-pin to 16-pin ribbon cable for
control panel

CBL-0063L Cable 20" Ultra 320 SCSI cable, lead free

CBL-0216L Cable 200 mm

4-pin to 4-pin fan power extension­cable (3)

- Cable 6'

Regional power cord (X2 for redun­dant power supply models)

SC745 Chassis Manual

A-2

A-4 Compatible Cables

The following cables are compatible with the SC745 chassis.

Some compatible motherboards have different connectors. If your motherboard

has only one SAS connector that the SAS/SATA cables must share, use one of the

following cables. These cables must be purchased separately.

Description: This cable has one SFF-8484 (32-pin) connector on one end and four

SAS connectors (seven pins each) at the other. This cable connects from the host

(motherboard or other controller) to the backplane SAS hard drive port.

Cable Name: SAS Cable Quantity: 1

Part #: CBL-0175L
Alt. Name: "Big Four"

Description: This cable has one iPass (SFF-8087/Mini-SAS) connector (36-pin) at

one end and four SAS connectors on the other end. This cable connects from the

host (motherboard or other controller) to the backplane SAS hard drive port.

Cable Name: SAS Cable Quantity: 1

Part #: CBL-0116
Alt. Name: iPass or "Small Four"

A-3

Appendix A: Chassis Cables

Extending Power Cables

Although Supermicro chassis are designed with to be efcient and cost-effective,

some compatible motherboards have power connectors located in different areas.

To use these motherboards you may have to extend the power cables to the mother

boards. To do this, use the following chart as a guide.

Power Cable Extenders

Number of Pins Cable Part # Length

24-pin CBL-0042L 7.9”(20 CM)

20-pin CBL-0059L 7.9”(20 CM)

8-pin CBL-0062L 7.9”(20 CM)

4-pin CBL-0060L 7.9”(20 CM)

Front Panel to the Motherboard

The SC745 chassis includes a cable to connect the chassis front panel to the

motherboard. If your motherboard uses a different connector, use the following list

to nd a compatible cable.

Front Panel to Motherboard Cable (Ribbon Cable)

Number of Pins

(Front Panel)

Number of Pins

(Motherboard)

Cable Part #

16-pin 16-pin CBL-0049L

16-pin 20-pin CBL-0048

20-pin 20-pin CBL-0047L

16-pin Various* CBL-0068L

20-pin Various* CBL-0067

* Split cables: Use these cables if your motherboard requires several different con-

nections from the front panel.

SC745 Chassis Manual

A-4

Notes

B-1

Appendix B: Power Supply Specications

Appendix B

SC745 Power Supply Specications

This appendix lists power supply specications for your chassis system.

800W

(Redundant = X2)

MFR Part # PWS-801-1R

Rated AC Voltage

100 - 240V
50 - 60Hz
10 - 4 Amp

+5V standby 4 Amp

+12V 66 Amp

+5V

30 Amp

+3.3V

24 Amp

-12V

0.6 Amp

920W

(Redundant = X2

MFR Part # PWS-920P-1R

AC Input

100-240 V
50-60 Hz
11-4.5 Amp

DC Output

4 Amp @ +5V standby
75 Amp @ +12V

With Power Distributor

+5V: 30 Amp
+3.3V: 24 Amp

-12V: 0.6 Amp

SC745 Chassis Manual

B-2

1200W

(Redundant = X2)

MFR Part # PWS-1K21P-1R

Rated AC Voltage

100 - 140V, 50 - 60Hz, 8 - 11.5 Amp
180 - 240V, 50 - 60Hz, 5.5 - 8 Amp

DC Output +12V

1000W, 83 Amp @ 100-140V
1200W, 100 Amp @ 180-240V
5Vsb: 4A

DC Output with PDB

+5V: 50 Amp
+3.3V: 30 Amp

-12V: 0.6 Amp

C-1

Appendix C: SAS-743TQ Backplane Specications

Appendix C

SAS-743TQ Backplane Specications

To avoid personal injury and property damage, carefully follow all the safety steps

listed below when accessing your system or handling the components.

C-1 ESD Safety Guidelines

Electrostatic Discharge (ESD) can damage electronic com ponents. To prevent dam-

age to your system, it is important to handle it very carefully. The following measures

are generally sufcient to protect your equipment from ESD.

Use a grounded wrist strap designed to prevent electrostatic discharge.•

Touch a grounded metal object before removing a component from the antistatic •

bag.

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.•

C-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 the •

backplane.

Make sure that the backplane is securely and properly installed on the mother-•

board to prevent damage to the system due to power shortage.

C-2

SC745 Chassis Manual

C-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.

C-4 Introduction to the SAS-743TQ Backplane

The SAS-743TQ backplane has been designed to utilize the most up-to-date tech-

nology available, providing your system with reliable, high-quality performance.

This manual reects SAS-743TQ Revision 3.00, the most current release available

at the time of publication. Always refer to the Supermicro Web site at www.supermi-

cro.com for the latest updates, compatible parts and supported congurations.

C-3

Appendix C: SAS-743TQ Backplane Specications

+12V

+12V GND

GND GND GND +5V+5V

48

1

16

64

49

H12

H7

M71

M75

M86

M87

H5

H6

H3

M90

M91

M96

M97

MM2MM3

SAS743TQ

REV 3.00

R

S

UPER

pb

C-5 Front Connectors, Jumpers and LEDs

JTAG Connector: JP471.

Upgrade Connector: JP462.

Chip: MG90723.

Power Connectors (4-pin): JP10, 4.

and JP13

ACT IN: JP265.

Sideband Connector #2 JP526.

Sideband Connector #1 JP517.

I8. 2C Connector #2 JP45

I9. 2C Connector #1 JP44

SAS Port #0 J510.

SAS Port #1 J611.

SAS Port #2 J712.

SAS Port #3 J813.

SAS Port #4 J1014.

SAS Port #5 J1215.

SAS Port #6 J1416.

SAS Port #7 J1617.

1

1

1

7

1

9

1

8

1

6

1

5

1

4

1

3

1

2

1

10

1

13

1

16

1

12

1

15

1

11

1

14

1

17

Figure C-1: Front Connectors

C-4

SC745 Chassis Manual

C-6 Front Connector and Pin Denitions

#5. Activity LED Header

The activity LED header, designated JP26,

is used to indicate the activity status of

each SAS drive. The Activity LED Header is

located on the front panel. For the Activity

LED Header to work properly, connect using

a 10-pin LED cable.

#3. MG9072 Chip

The MG9072 is an enclosure management

chip that supports the SES-2 controller and

SES-2 protocols.

Backplane

Main Power

4-Pin Connector

Pin# Denition

1 +12V

2 and 3 Ground

4

+5V

#4. Backplane Main Power Connectors

The 4-pin connectors, designated JP10 and

JP13, provide power to the backplane. See

the table on the right for pin denitions.

#1. and 2. JTAG Connector and Upgrade

Connectors

The JTAG and Upgrade connectors, des-

ignated JP47 and JP46, are used for diag-

nostic purposes. These connectors should

be used by a certied and experienced

technician.

C-5

Appendix C: SAS-743TQ Backplane Specications

#6. and #7. Sideband Headers

The sideband headers are designated JP51

and JP52. For SES-2 to work properly, you

must connect an 10-pin sideband cable.

See the table to the right for pin deni-

tions.

Sideband Headers

Pin # Denition Pin # Denition

2 Backplane

Addressing
(SB5)

1 Controller

ID (SB6)

4 Reset (SB4) 3 GND (SB2)

6 GND (SB3) 5 SDA (SB1)

8 Backplane

ID (SB7)

7 SCL (SB0)

10 No Connec-

tion

9 No Connec-

tion

#8. and #9. I2C Connectors

The I2C Connectors, designated JP44 and

JP45, are used to monitor HDD activity and

status. See the table on the right for pin

denitions.

I2C Connector

Pin Denitions

Pin# Denition

1 Data

2 Ground

3 Clock

4 No Connection

#10. - #17. SAS Ports

The SAS ports are used to connect the SAS

drive cables. The 8 ports are designated

#0 - #7. Each port is also compatible with

SATA drives. However, do NOT mix SAS

and SATA drives in the same enclosure.

C-6

SC745 Chassis Manual

C-7 Front Jumper Locations and Pin Denitions

+12V

+12V GND

GND GND GND +5V+5V

48

1

16

64

49

H12

H7

M71

M75

M86

M87

H5

H6

H3

M90

M91

M96

M97

MM2MM3

SAS743TQ

REV 3.00

R

S

UPER

pb

48

1

16

64

49

M71

M75

M86

M87

H3

M90

M91

M96

M97

SAS743TQ

REV 3.00

R

pb

JP50

48

1

16

64

49

H3

JP29

JP18

JP42

JP43

JP40

JP33

JP36

JP38

JP41

JP34

JP37

Figure C-2: Front Jumpers

C-7

Appendix C: SAS-743TQ Backplane Specications

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 function

of the connector. Pin 1 is identied with

a square solder pad on the printed circuit

board.

Note: On two pin jumpers, "Closed" means

the jumper is on and "Open" means the

jumper is off the pins.

Connector

Pins

Jumper

Setting

3 2 1

3 2 1

Jumper Settings

Jumper Jumper Settings Note

JP18

Open: Enabled
Closed: Disabled

Buzzer Reset*

JP29

Open: Default
Closed: Reset

MG9072 Chip Reset

*The buzzer sound indicates that a condition requiring immediate attention has

occurred.

The buzzer alarm is triggered by the following conditions:

Hard drive failure1.

Fan failure2.

System temperature over 45º Celsius.3.

C-8

SC745 Chassis Manual

I2C and SGPIO Mode Jumper Settings

This backplane can utilize I2C or SGPIO. I2C is the default mode and can be used

without making changes to your jumpers. The following information details which

jumpers must be congured to use SGPIO mode or restore your backplane to I2C

mode.

I2C and SGPIO Settings

Jumper

I2C Jumper Setting

(Default)

SGPIO Jumper

Setting

Note

JP33 2-3 1-2 Controller ID #1

JP34 1-2:ID#0 1-2 Backplane ID #1

JP36 2-3 1-2 Controller ID #2

JP37 2-3:ID#1 1-2 Backplane ID #2

JP38 Closed Open I2C Reset #2

JP40 Open Closed I2C Reset SDOUT #1

JP41 Open Closed I2C Reset SDOUT #2

JP42 2-3 1-2 Backplane ID SDIN #1

JP43 2-3 1-2 Backplane ID SDIN #2

JP50 Closed Open I2C Reset #1

SAS Port Connections in I2C and SGPIO Settings

Use the following chart when connecting this backplane. If you connect the SAS

ports out of order, you will not able to easily identify drives using the LED func-

tion.

SAS Port Connections in I2C and SGPIO Settings

Port # I2C SGPIO

# 0 - 3 I2C #1 Sideband #1

# 4 - 7 I2C #2 Sideband #2

C-9

Appendix C: SAS-743TQ Backplane Specications

Front Panel LEDs

LED State Specication

D3 ON

Overheat/drive failure LED indicator

(Red light: ashing, Buzzer: On, if activated)

Front LED Indicators

+12V

+12V GND

GND GND GND +5V+5V

48

1

16

64

49

H12

H7

M71

M75

M86

M87

H5

H6

H3

M90

M91

M96

M97

MM2MM3

SAS743TQ

REV 3.00

R

S

UPER

pb

OH/Drive

Fail LED

Figure C-3: Front LEDs

C-10

SC745 Chassis Manual

C-8 Rear Connectors and LED Indicators

Rear SAS/SATA Connectors

Rear Connector SAS Drive Number

SAS #0 SAS/SATA HHD #0

SAS #1 SAS/SATA HHD #1

SAS #2 SAS/SATA HHD #2

SAS #3 SAS/SATA HHD #3

SAS #4

SAS/SATA HHD #4

SAS #5 SAS/SATA HHD #5

SAS #6 SAS/SATA HHD #6

SAS #7 SAS/SATA HHD #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

ACT2

H4

MM3

SAS #0 J1SAS #1 J2SAS #2 J3SAS #3 J4SAS #4 J9SAS #5

J11

SAS #6
J13

SAS #7
J15

D12

D5

D13

D6

D14

D7

D15

D8

D18

D19

D21

D20

D22

D23

D25

D26

Figure C-4: Rear Connectors

C-11

Appendix C: SAS-743TQ Backplane Specications

Notes

C-12

SC745 Chassis Manual

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 per-

form be reasonably expected to result in signicant injury or loss of life or catastrophic

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.