Supero SC846TQ-900B User manual

S

UPER

®

SC846 CHASSIS SERIES

SC846TQ-900B

SC846TQ-900B

SC846E1-R900

SC846E2-R900

USER’S MANUAL

1.0c

SC846 Chassis Manual

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, if any, and documentation may not, in whole or in part, be copied, photocopied, reproduced, translated or reduced to any medium or machine without prior written consent.

IN NO EVENT WILL SUPERMICRO BE LIABLE FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL,

SPECULATIVE OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OR INABILITY 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.

FCC Statement: This equipment has been tested and found to comply with the limits for a Class

A digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the manufacturer’s instruction manual, may cause harmful interference with radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case you will be required to correct the interference at your own expense.

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.

Manual Revision 1.0c

Release Date: July 8, 2008

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 © 2008 by Super Micro Computer, Inc.

All rights reserved.

Printed in the United States of America

ii

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 SC846 chassis. Installation and maintenance should be performed by experienced technicians only.

This document lists compatible parts available when this document was published.

Always refer to the our Web site for updates on supported parts and configurations.

iii


Manual Organization

Chapter 1 Introduction

The first chapter provides a checklist of the main components included with this chassis and describes the main features of the SC846 chassis. This chapter also includes contact information.

Chapter 2 System Safety

This chapter lists warnings, precautions, and system safety. It recommended that you thoroughly familiarize yourself installing and servicing this chassis safety precautions.

Chapter 3 Chassis Components

Refer here for details on this chassis model including the fans, bays, airflow 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 Maintenance

Follow the procedures given in this chapter when installing, removing, or reconfiguring 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 reconfiguring your chassis into a rack environment.

iv

Preface

This section lists compatible cables, power supply specifications, and compatible backplanes. Not all compatible backplanes are listed. Refer to our Web site for the latest compatible backplane information.

Appendix A Hardware

This section provides information on cabling, and other hardware which is compatible with your chassis. For complete information on supported cables and hardware, refer to the Supermico Web site at www.supermicro.com.

Appendix B Power Supply Specifications

This chapter lists the specifications of the power supply provided with your chassis. For additional information, refer to the Supermicro website at www.supermicro.

com.

Appendix C SAS-846TQ Backplane Specifications

This section contains detailed specifications on the backplane for the SC846TQ chassis systems. Additional information can be found on the Supermicro Web site at www.supermicro.com.

Appendix D SAS-846EL Backplane Specifications

This section contains detailed specifications on the backplane for the SC846EL chassis systems. Additional information can be found on the Supermicro Web site at www.supermicro.com.

v


Table of Contents

Chapter 1 Introduction

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

1-2 Shipping List .................................................................................................... 1-1

Part Numbers .................................................................................................. 1-1

1-3 Where to get Replacement Components ........................................................ 1-2

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

1-5 Returning Merchandise for Service ................................................................ 1-4

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

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

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

Chapter 3 System Interface

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

3-2 Control Panel Buttons ..................................................................................... 3-2

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

3-4 Drive Carrier LEDs .......................................................................................... 3-4

SAS/SATA Drives ............................................................................................ 3-4

SCSI Drives ..................................................................................................... 3-4

Chapter 4 Chassis Setup and Maintenance

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

4-2 Removing the Chassis Cover ......................................................................... 4-2

4-3 Installing Hard Drives ...................................................................................... 4-3

4-4 Installing the Motherboard .............................................................................. 4-6

I/O Shield ........................................................................................................ 4-6

Permanent and Optional Standoffs ................................................................. 4-7

Add-on Card/Expansion Slot Setup ................................................................ 4-9

4-5 Installing the Air Shroud ................................................................................ 4-10

4-6 Checking the Server's Air Flow ......................................................................4-11

4-7 System Fans ................................................................................................. 4-12

4-8 Power Supply ............................................................................................... 4-14

4-9 Changing the Power Distributor .................................................................... 4-17 vi

Preface

4-10 Changing the CD-ROM, DVD-ROM, or Floppy Drive and HDD trays .......... 4-19

4-11 Accessing the Backplane .............................................................................. 4-22

Chapter 5 Rack Installation

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

5-2 Unpacking the System .................................................................................... 5-1

5-3 Preparing for Setup ......................................................................................... 5-1

Choosing a Setup Location ............................................................................. 5-1

Rack Precautions ............................................................................................ 5-2

General Server Precautions ............................................................................ 5-2

Rack Mounting Considerations ....................................................................... 5-3

Ambient Operating Temperature ................................................................ 5-3

Reduced Airflow ......................................................................................... 5-3

Mechanical Loading ................................................................................... 5-3

Circuit Overloading ..................................................................................... 5-3

Reliable Ground ......................................................................................... 5-3

5-4 Rack Mounting Instructions ............................................................................. 5-4

Rack Rails Assembly ...................................................................................... 5-4

Identifying the Inner Rack Rails ................................................................. 5-4

Appendix A SC846 Cables and Hardware

Appendix B SC846 Power Supply Specifications

Appendix C BPN-SAS-846TQ Backplane Specifications

Appendix D BPN-SAS-846EL Backplane Specifications

vii

Chapter 1: Introduction

Chapter 1

Introduction

1-1 Overview

Supermicro’s SC846 4U chassis features a unique and highly-optimized design.

The chassis is equipped with high efficiency power supply. High performance fans provide ample optimized cooling for FB-DIMM memory modules and twenty-four hot-swap drive bays offer maximum storage capacity.

1-2 Shipping List

Part Numbers

Please visit the following link for the latest shiping lists and part numbers for your particular chassis model http://www.supermicro.com/

SC846 Chassis

Model

SC846STQ-R900B

CPU

DP Xeon

HDD

24x SAS/

SATA

I/O Slots

7x FF

Power

Supply

900W

(Redundant)

1-1


1-3 Where to get Replacement Components

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

1-2

Chapter 1 Introduction

1-4 Contacting Supermicro

Headquarters

Address:

Tel:

Fax:

Email:

Web Site:

Super Micro Computer, Inc.

980 Rock Ave.

San Jose, CA 95131 U.S.A.

+1 (408) 503-8000

+1 (408) 503-8008 [email protected] (General Information) [email protected] (Technical Support) www.supermicro.com

Europe

Address:

Tel:

Fax:

Email:

Super Micro Computer B.V.

Het Sterrenbeeld 28, 5215 ML

's-Hertogenbosch, The Netherlands

+31 (0) 73-6400390

+31 (0) 73-6416525 [email protected] (General Information) [email protected] (Technical Support) [email protected] (Customer Support)

Asia-Pacific

Address: Super Micro Computer, Inc.

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

Chung-Ho 235, Taipei County

Tel:

Fax:

Web Site:

Technical Support:

Email:

Tel:

Taiwan, R.O.C.

+886-(2) 8226-3990

+886-(2) 8226-3991 www.supermicro.com.tw

[email protected]

886-2-8226-1900

1-3


1-5 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 your vendor for a Returned Merchandise Authorization (RMA) number. When returning to the manufacturer, the RMA number should be prominently displayed on the outside of the shipping carton, and mailed prepaid or hand-carried. Shipping and handling 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 chassis in the original Supermicro carton, using the original packaging material. If these are no longer available, be sure to pack the chassis securely, using packaging material to surround the chassis so that it does not shift within the carton and 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.

1-4

Chapter 2 System Safety

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 order given should enable you to have your chassis setup and operational within a minimal amount of time. This quick set up assumes that you are an experienced technician, famailiar 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, file 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 venilated. Avoid areas where heat, electrical noise and eletromagnetic fields are generated.

You will also need it placed near at least one grounded power outlet. When configured, the SC846 chassis includes one power supply. "R" models (i.e. SC846S-

R650V Chassis) include a redundant power supply and require two grounded outlets.

2-3 Preparing for Setup

The SC846 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.

2-4 Electrical Safety Precautions

Basic electrical safety precautions should be followed to protect yourself from harm and the SC846 from damage:

2-1


•

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 installing main system components, such as the serverboard, memory modules and the DVD-ROM and floppy drives (not necessary for hot swappable drives).

When disconnecting power, you should first 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 familiar 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 specifically 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.

•

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 unconventional way.

2-2

Chapter 2 System Safety

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 removed 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 sufficient 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 specifically designed as electrical insulators.

•

Use a grounded wrist strap designed to prevent static 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.

2-3


•

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.

2-4

Chapter 3 System Interface

Chapter 3

System Interface

3-1 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 specific components. Most SC846 models are two buttons on the chassis 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.

3-1


3-2 Control Panel Buttons

There are two push-buttons located on the front of the chassis. These are (in order from left to right) a reset button and a power on/off button.

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

Power: The main power button is used to apply or remove power from the power supply to the server system. Turning off system power with this button removes the main power but keeps standby power supplied to the system. Therefore, you must unplug system before servicing.

3-3 Control Panel LEDs

The control panel located on the front of the SC846 chassis has five 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 flashes, it indicates a fan failure. When continuously on (not flashing) it indicates an overheat condition, which may be caused by cables obstructing the airflow in 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. You should also check to make sure that the chassis covers are installed. Finally, verify that the heatsinks are installed properly. This

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

3-2

Chapter 3 System Interface

2

NIC2: Indicates network activity on GLAN2 when flashing.

1

NIC1: Indicates network activity on GLAN1 when flashing.

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

ROM drive activity when flashing.

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

LED should normally be illuminated when the system is operating.

!

Power Failure: When this LED flashes, it indicates a failure in the power supply.

3-3


3-4 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 Serial ATA drive carrier has a green LED. When illuminated, this green LED (on the front of the 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 notified 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 notified by your system management software.

3-4

Chapter 4 Chassis Setup and Maintenance

Chapter 4

Chassis Setup and Maintenance

4-1 Overview

This chapter covers the steps required to install components and perform maintenance on the chassis. The only tool you will need to install components and perform maintenance is a Phillips screwdriver. Print this chapter to use as a reference while setting up your chassis.

!

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.

4-1


4-2 Removing the Chassis Cover

1

3

1

2

Remove this screw

(if necessary)

Release Tab

Figure 4-1: Removing the Chassis Cover

Removing the Chassis Cover

1.

Press the release tabs to remove the cover from the locked position. Press both tabs at the same time.

2.

Once the top cover is released from the locked position, slide the cover toward the rear of the chassis.

3.

Lift the cover off the chassis.

!

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 airflow and prevent overheating.

4-2

4-3 Installing Hard Drives


2

1

Figure 4-3: Removing Hard Drive

Removing Hard Drive Trays from the Chassis

1.

Press the release button on the drive tray. This extends the drive bay handle.

2.

Use the handle to pull the drive out of the chassis.

4-3


Drive Tray

Dummy Drive

Figure 4-4A: Chassis Drive Tray

The drives are mounted in drive trays to simplify their installation and removal from the chassis. These trays also help promote proper airflow for the drive bays.

!

Warning: Except for short periods of time (swapping hard drives), do not operate the server with the hard drives empty.

1

1

Figure 4-4B: Removing Dummy Drive from Tray

Installing a Hard Drive to the Hard Drive Tray

1.

Remove the two screws securing the dummy drive to the drive tray and remove the dummy drive.Place the hard drive tray on a flat surface such as a desk, table or work bench.

4-4

SAS/SATA or SCSI

Hard Drive

4


4

Drive Tray

Figure 4-5: Installing the Hard Drive into the Tray

2.

Slide the hard drive into the tray with the printed circuit board side facing down.

3.

Carefully align the mounting holes in both the drive tray and the hard drive.

4.

Secure the hard drive to the tray using six screws.

5.

Replace the drive tray into the chassis. Make sure to close the drive tray handle to lock the drive tray into place.

5

Figure 4-6: Installing the Hard Drive

4-5


4-4 Installing the Motherboard

I/O Shield

Figure 4-7: I/O Shield Placement

I/O Shield

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

Installing the I/O Shield:

1.

Review the documentation that came with your motherboard. Become familiar with component placement, requirements, and precautions.

2.

Open the chassis cover.

3.

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

4.

Once installed, the motherboard will hold the I/O shield in place.

4-6

M/B HARD DRIVE

Pan head

6-32 x 5 mm

[0.197]

Flat head

6-32 x 5 mm

[0.197]

DVD-ROM, CD-ROM, and FLOPPY DRIVE


Pan head

6-32 x 5 mm

[0.197]

Flat head

Permanent and Optional Standoffs

6-32 x 5 mm

[0.197]

Round head

M3 x 5 mm

[0.197]

Round head

M2.6 x 5 mm

[0.197] the chassis surface. The SC846 chassis includes permanent standoffs in locations used by most motherboards. These standoffs accept the rounded Phillips head screws included in the SC846 accessories packaging.

Flat head

Some motherboards require additional screws for heatsinks, general components and/or non-standard security. Optional standoffs are included to these mother-

M/B STANDOFFS

the bottom the chassis and secure the screw with the hexagon nut (rounded side up).

M/B standoff

6-32 to 6-32

M/B (CPU) standoff

Thumb screw

6-32 x 5 mm

[0.197]

1/U M/B standoff

6-32 x 5 mm

[0.197]

Installing the Motherboard:

1.

Review the documentation that came with your motherboard. Become familiar with component placement, requirements, precautions, and cable connections.

2.

Open the chassis cover.

3.

As required by your motherboard, install standoffs in any areas that do not have a permanent standoff. To do this:

A. Place a hexagonal standoff screw through the bottom the chassis.

B. Secure the screw with the hexagon nut (rounded side up).

4-7


4.

Figure 4-9: Motherboard Installation

Lay the motherboard on the chassis aligning the permanent and optional standoffs

5.

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

6.

Secure the CPU(s), heatsinks, and other components to the motherboard as described in the motherboard documentation.

7. Connect the cables between the motherboard, backplane, chassis, front panel, and power supply, as needed. Also, the fans may be temporarily removed to allow access to the backplane ports.

Figure 4-10: Secure the Motherboard to the Chassis

4-8


Add-on Card/Expansion Slot Setup

Your SC846 chassis includes I/O slots for add-on cards and expansion cards.

Add-on/Expansion

Card Slots

Figure 4-11: Installing Add-on and Expansion Cards

The SC846 chassis includes slots for add-on cards and expansion cards.

Installing Add-on and Expansion Cards in the SC846 Chassis:

1.

Disconnect the power supply, lay the chassis on a flat surface, and open the chassis cover.

2.

Remove the screw holding the cover in place for each add-on/expansion card slot you want to use. Keep this screw for later use.

3.

Connect the add-on cards and/or expansion cards to the mother board.

4. Secure each card to the chassis using the card's L bracket and the previously removed screw.

4-9


4-5 Installing the Air Shroud

Figure 4-12: Air Shroud for SC846LP Chassis

Air shrouds concentrate airflow to maximize fan efficiency. The SC846 chassis air shroud does not require screws to set up.

Installing the Air Shroud

1.

Confirm that your air shroud matches your chassis model. Each shroud is labeled SC846LP, SC846RC, or SC846U,

2.

Place air shroud in the chassis. The air shroud fits behind the two fans closest to the power supply.

4-10


4-6 Checking the Server's Air Flow

Checking the Air Flow

1. Make sure there are no objects to obstruct airflow in and out of the server. In addition, if you are using a front bezel, make sure the bezel's filter is replaced periodically.

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

3. Make sure no wires or foreign objects obstruct air flow through the chassis. Pull all excess cabling out of the airflow path or use shorter cables.

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

4-11


4-7 System Fans

Three heavy duty fans provide cooling for the chassis. These fans circulate air through the chassis as a means of lowering the chassis internal temperature.

Release Tab

Release Tab

Figure 4-13: Front System Fan

Figure 4-14: Rear System Fan

Replacing a System Fan

1. If necessary, open the chassis while the power is running to determine which fan has failed. (Never run the server for an extended period of time with the chassis open.)

2. Turn off the power to the system and unplug the system from the outlet.

3. Remove the failed fan's power cord from the serverboard.

4. Press the fan release tab to lift the failed fan from the chassis and pull it completely from the chassis.

5. Place the new fan into the vacant space in the housing while making sure the arrows on the top of the fan (indicating air direction) point in the same direction as the arrows on the other fans.

6. Power up the system and check that the fan is working properly before replacing the chassis cover.

4-12


Figure 4-15: Placing the Front System Fan

Figure 4-16: Placing the Rear System Fan

4-13


4-8 Power Supply

The SC846 Chassis has a 900 watt, high-efficiency 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 supplies can be changed without powering down the system.

New units can be ordered directly from Supermicro (see contact information in the

Preface).

4-14


Release

Tab

Figure 4-17: Power Supply Release Tab

Changing the Power Supply:

1.

If your chassis includes a redundant power supply (at least two power modules), you can leave the server running and remove only one power supply. If your server has only one power supply, you must power down the server and unplug the power cord.

2. Push the release tab (on the back of the power supply) as illustrated.

4-15


3

Figure 4-18: Removing the Power Supply

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

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

5. Push the new power supply module into the power bay until you hear a click.

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

4-16


4-9 Changing the Power Distributor

Server chassis above 2U require a power distributor. The power distributor provides failover and power supply redundancy. In the unlikely event you must change the power distributor, do following:

Changing the Power Distributor

1.

Power down the server and remove the plug from the wall socket or power strip.

2.

Remove all cable connections to the power supply from the motherboard, backplane, and other components. Also, remove both power supplies.

Power

Distributor

Cover

Power Supply

Power

Distributor

Board,

Mounted in the tray on the chassis wall

Fan Row

Figure 4-19: Removing the Power Distributor Cover

4-17


3.

Locate the power distributor between the power supply and the fan row.

4.

Remove the two screws securing the power distributor housing to the chassis wall

5.

Remove the three screws securing the power distributor to the housing.

6.

Gently pull the power distributor and houseing from the chassis. Carefully guide all the cables through the power distributor housing.

7.

Remove the power distributor from the housing.

8.

Slide the new power distributor module into the power distributor housing.

Make that you slide the cables through the bottom of the housing.

9.

Reconnect all the power cables, replace the power supply, and insert the plug into the wall.

Figure 4-20: Removing the Power Distributor and Housing

4-18


4-10 Changing the CD-ROM, DVD-ROM, or Floppy Drive and HDD trays

The SC748 chassis supports the following drive configuration options:

Options

Option One

Option Two

Option Three

Position A

Floppy, DVD or

CD-ROM drive

Not available

Position B

Not available

3.5" fixed hard drive

Not available

Position C

One 3.5" fixed hard drive or two

2.5" fixed hard drives


Open for later use

Option Four

Floppy, DVD or

CD-ROM drive

Open for later use if no drive is in position B

Open for later use if no drive is in position A


C

B

A

Figure 4-21: Drive Location Options

After selecting one of the drive configuration options listed above, use the following instructions to install the drives and their trays into the chassis.

Changing Drive Trays

1.

Power down and unplug the system from the outlet.

2.

Remove the chassis cover.

3.

Disconnect the power and data cables from the drive to other chassis components including the motherboard and backplane.

4-19


Figure 4-21: HDD Tray

4.

Unscrew the four screws (6-32) holding the drive into the HDD tray.and set them aside. These will be needed later to mount the replacement drive into the HDD tray. Lift the drive tray up and out of the chassis.

Remove

Tray from

Chassis

Remove

Four

Screws

Figure 4-22: Remove the HDD Tray

4-20


Figure 4-23: Replacement Drive and Tray Installed in the Chassis

Note the locations of the CD-ROM and DVD-ROM and the space for floppy drives in the beginning of this section. Determine which configuration option to use in the chassis before continuing.

Installing the Hard Drive

1.

Carefully remove the drive from the HDD tray.

2.

If necessary, also unscrew the four screws and mylar washers holding the drive tray to the chassis, and set them aside for later use when mounting the replacement HDD tray.

3.

Remove the drive tray from the chassis.

4.

Install the replacement HDD into the replacement drive tray using the four screws previously set aside.

5.

Lower the replacement drive and tray into the chassis, carefully aligning the thru holes in the drive tray with the holes in the chassis.

6.

Using the four drive tray screws previously put aside, install the replacement drive and drive tray into the chassis.

4-21


4-11 Accessing the Backplane

The SC748 chassis backplane is located behind the hard drives and in front of the front system fans. In order to change jumper settings on the backplane, it may be necessary to remove the backplane from the chassis.

Removing the Backplane

1.

Power down and unplug the system from any power source.

2.

Remove the chassis cover.

3.

Disconnect the cabling to the backplane.

4.

Remove the three upper screws securing backplane housing to the chassis and set these aside for later use.

4

Remove

Three Upper

Screws

Figure 4-25: Removing the Upper Backplane Housing Screws

4-22


5.

Remove the four lower screws securing the backplane housing to the chassis floor and set these aside for later use.

5

Remove

Four Lower

Screws

Figure 4-26: Removing the Lower Backplane Housing Screws

6.

Gently ease the backplane up and out of the chassis.

6

Lift the

Backplane

From the

Chassis

Figure 4-27: Removing the Backplane from the Chassis

4-23


Installing the Backplane

1.

Gently slide the backplane and its housing back into position in the chassis.

1

Slide the

Backplane into the Chassis

Figure 4-28: Replacing the Backplane in the Chassis

2.

Replace the four lower screws which secure the backplane housing to the chassis floor.

2

Replace the

Four Lower

Screws

Figure 4-29: Replacing the Four Lower Screws

4-24


3.

Replace the three upper screws which secure the backplane housing to the chassis.

4.

Reconnect the cabling to the backplane.

3

Replace the

Three Upper

Screws

Figure 4-30: Replacing the Three Upper Screws

4-25


Notes

4-26

Chapter 5

Rack Installation

Chapter 5 Rack Installation

5-1 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.

5-2 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 file 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 fields are generated. You will also need it placed near a grounded power outlet. Be sure to read the Rack and Server Precautions in the next section.

5-3 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 you begin the installation procedure outlined in the sections that follow.

Choosing a Setup Location

•

Leave enough clearance in front of the rack to enable you to open the front door completely (~25 inches).

•

Leave approximately 30 inches of clearance in the back of the rack to allow for sufficient airflow and ease in servicing.

5-1


!

Warnings and Precautions!

!

•

This product is for installation only in a Restricted Access Location (dedicated equipment rooms, service closets and the like).

Rack Precautions

•

Ensure that the leveling jacks on the bottom of the rack are fully extended to the floor 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 simultaneously may cause the rack to become unstable.

General Server Precautions

•

Review the electrical and general safety precautions that came with the components 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 first, 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 touching them.

5-2


•

Always keep the rack's front door and all panels and components on the servers closed when not servicing to maintain proper cooling.

Rack Mounting Considerations

Ambient Operating Temperature

If installed in a closed or multi-unit rack assembly, the ambient operating temperature 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 temperature (Tmra).

Reduced Airflow

Equipment should be mounted into a rack so that the amount of airflow 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 connections other than the direct connections to the branch circuit (i.e. the use of power strips, etc.).

5-3


5-4 Rack Mounting Instructions

Rack Rails Assembly

This section provides information on installing the SC846 chassis into a rack unit with the rails provided. There are a variety of rack units on the market, which may mean that the assembly procedure will differ slightly. You should also refer to the installation instructions that came with the rack unit you are using.

NOTE: This rail will fit a rack between 26" and 33.5" deep.

Identifying the Inner Rack Rails

The chassis package includes a rack rail assembly in the rack mounting kit. Each assembly consists of an inner rail that secures to the chassis and an outer rail that is attached directly to the rack.

Inner Rail Assembly

Figure 5-1: Identifying the Rack Rails

5-4


1

3

2

Figure 5-2: Installing the Rails

Installing the Inner Rails

1.

Place the inner rails on the side of the chassis aligning the hooks of the chassis with the inner rail holes. Make sure the rail faces "outward" so that it will fit with the rack's mounting bracket.

2.

Slide the rail toward the front of the chassis.

3.

Secure the chassis with 4 screws as illustrated.

4.

Repeat steps 1-3 for the other inner rack rail.

5-5


Secure to the

Front of the Rack

Attach Outer Racks

Together

Figure 5-3: Assembling the Outer Rails

Secure to the

Rear of the Rack

Installing the Outer Rails to the Rack

1.

Attach the short bracket to the outside of the long bracket. You must align the pins with the slides. Also, both bracket ends must face the same direction.

2.

Adjust both the short and long brackets to the proper distance so that the rail fits snugly into the rack.

3.

Secure the long bracket to the front side of the outer rail with two M5 screws and the short bracket to the rear side of the outer rail with three M5 screws.

4.

Repeat steps 1-4 for the left outer rail.

5-6


3

3

2

Figure 5-4: Installing the Outer Rails to the Server Rack

5-7


C

B

A

Figure 5-5: Installing the Rack Rails

Installing the Chassis into a Rack:

1.

Confirm that chassis includes the inner rails (A) and rail extensions (B). Also, confirm that the outer rails (C) are installed on the rack.

2.

Line chassis rails (A and B) with the front of the rack rails (C).

3.

Slide the chassis rails into the rack rails, keeping the pressure even on both sides (you may have to depress the locking tabs when inserting). When the server has been pushed completely into the rack, you should hear the locking tabs "click".

4.

(Optional) Insert and tightening the thumbscrews that hold the front of the server to the rack.

5-8

Appendix A Chassis Cables

Appendix A

SC846 Cables and Hardware

A-1 Overview

This appendix lists supported cables for your chassis system. It only includes the most commonly used components and configurations. 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 SC846TQ Chassis (SAS/SATA)

Part #

CBL-0157L

CBL-0087

CBL-0139L

CBL-0160L-

CBL-0180L

CBL-0217L

Type

Cable

Ribbon,

Round

Wire

Cable

SATA

Cable

SC846TQ-R900

Length

9"

Description

8 pin to 8 pin ribbon cable for

SGPIO, PB free

20"

50 cm

6' various

16 pin to 16 pin ribbon cable for control panel

IDE 80-Wire cable for DVD ROM

2 each, regional power cords

Set for 4 SATA cables. Length varied to minimize airflow interference.

16-pin control panel converter cable

A-1


A-3 Compatible Cables

These cables are compatible with the SC846 Chassis.

Alternate SAS/SATA Cables

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.

Cable Name: SAS Cable

Part #: CBL-0175L

Alt. Name: "Big Four"

Quantity: 1

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

4 SAS connectors (7 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

Part #: CBL-0116

Alt. Name: iPass or "Small Four"

Quantity: 1

Description: This cable has one ipass (SFF-8087/mini-sas) connector (36 pins) at one end and 4 SAS connectors on one end. This cable connects from the Host

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

A-2

Appendix A Chassis Cables

Extending Power Cables

Although Super Micro chassis are designed with to be efficient 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.

Number of Pins

24 pin

20 pin

8 pin

4 pin

Power Cable Extenders

Cable Part #

CBL - 0042

CBL - 0059

CBL - 0062

CBL - 0060

Length

7.9”(20 CM)

7.9”(20 CM)

7.9”(20 CM)

7.9”(20 CM)

Front Panel to the Motherboard

The SCxxx 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 find 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

16 pin

20 pin

CBL - 0049

CBL - 0048

20 pin

16 pin

20 pin

20 pin various* various*

CBL - 0047

CBL - 0068

CBL - 0067

* Split Cables: Use these cable if your motherboard requires several different connections from the front panel.

A-3


A-4 Chassis Screws

The accessory box includes all the screws needed to setup your chassis. This section lists and describes the most common screws used. Your chassis may not require all the parts listed.

M/B HARD DRIVE

Pan head

6-32 x 5 mm

[0.197]

Flat head

6-32 x 5 mm

[0.197]

DVD-ROM, CD-ROM, and FLOPPY DRIVE

Pan head

6-32 x 5 mm

[0.197]

RAIL

Flat head

6-32 x 5 mm

[0.197]

Round head

M3 x 5 mm

[0.197]

Round head

M2.6 x 5 mm

[0.197]

Flat head

M4 x 4 mm

[0.157]

M/B STANDOFFS

Round head

M4 x 4 mm

[0.157]

Flat head

M5 x 12 mm[0.472]

Washer for M5

M/B standoff

6-32 to 6-32

M/B (CPU) standoff

M5 to 6-32

Thumb screw

6-32 x 5 mm

[0.197]

1/U M/B standoff

6-32 x 5 mm

[0.197]

A-4

Appendix B Power Supply Specifications

Appendix B

SC846 Power Supply Specifications

This appendix lists power supply specifications for your chassis system.

SC846TQ, SC846E1 and SC846E2

900W

MFR Part #

Rated AC Voltage

PWS-902-1R

100 - 240V

50 - 60Hz

3 - 4 Amp

+5V standby 4 Amp

+12V 75 Amp

+5V 50 Amp

+3.3V 30 Amp

-12V 0.6 Amp

B-1


Notes

B-2

Appendix C BPN-SAS-846TQ Backplane Specifications

Appendix C

BPN-SAS-846TQ Backplane Specifications

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

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.

•


•

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

•

Handle the RAID card by its edges only; do not touch its components, peripheral chips, memory modules or gold contacts.

•


•

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

C-1


C-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 or may not look exactly the same as the graphics shown in this manual.

C-2


Jumper Settings and Pin Definitions

C-4 Front Connectors and Jumpers

1

2

11

1

3

10

2

3

3

8

5

10

10

1

2

7

4

6

10

9

10

Front Connectors

1.

2.

3.

4.

5.

6.

Chip: MG 9072

Upgrade Connectors: JP69, JP78 and JP115

ACT_IN: JP26, JP47, and JP108

I

2

C Connector #1 (JP37) and #2

(JP95)

I

2


(JP96)

I

2


(JP117)

C-3

7.

8.

9.

10.

SideBand Connector #1 (JP66) and #2 (JP68)



P o w e r C o n n e c t o r s ( 4 p i n ) : J P 1 0 , J P 1 3 , J P 4 6 ,

JP48, JP109, and JP110


34

30

26

22

18

14

23.

24.

25.

26.

19.

20.

21.

22.

15.

16.

17.

18.

11.

12.

13.

14.

31.

32.

33.

34.

27.

28.

29.

30.

SAS Port #0 J5

SAS Port #1 J14

SAS Port #2 J26

SAS Port #3 J40

SAS Port #4 J6

SAS Port #5 J16

SAS Port #6 J29

SAS Port #7 J41

SAS Port #8 J7

SAS Port #9 J22

SAS Port #10 J30

SAS Port #11 J42

SAS Port #12 J8

SAS Port #13 J23

SAS Port #14 J32

SAS Port #15 J46

SAS Port #16 J10

SAS Port #17 J24

SAS Port #18 J38

SAS Port #19 J47

SAS Port #20 J12

SAS Port #21 J25

SAS Port #22 J39

SAS Port #23 J48

33

29

25

21

17

13

32

28

24

20

16

12

31

27

23

19

15

11

C-4


C-5 Front Connector and Pin Definitions

1. MG9072 Chip

The MG9072 is an enclosure management chip that supports the SES-2 controller and

SES-2 protocols.

2. Upgrade Connectors

The upgrade connectors are designated JP69,

JP78, and JP115 and are used for manufacturer's diagnostic purposes only.

3. Activity LED Header

The activity LED header, designated JP26,

JP47 and JP108, 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.

4./5./6. I

2

C Connectors

The I

2

C Connectors, designated JP37, JP95,

JP52, JP96, JP116, and JP117, are used to monitor HDD activity and status. See the table on the right for pin definitions.

1

2

3

4

I

2

C Connector

Pin Definitions

(JP37, JP95, JP52, JP96,

JP116, and JP117)

Pin# Definition

Data

Ground

Clock

No Connection

C-5


7./8./9./ Sideband Headers

The sideband headers are designated JP66,

JP68, JP75, JP77, JP112, and JP114. For

SES-2 to work properly, you must connect an

8-pin sideband cable. See the table to the right for pin definitions.

NOTE: SGPIO is the default setting for this backplane.

Sideband Headers

(JP66, JP68, JP75, JP77,

JP112 and JP114)

Pin # Definition

2

SGPIO:

SDIN

I

2

C:

Backplane

Addressing

(SB5)

Pin # Definition

1 Controller ID

(SB6)

4

6

SGPIO:

SDOUT

I 2

C: Reset

(SB4)

GND (SB3)

3 GND (SB2)

8

10

Backplane

ID (SB7)

No Connection

5

SGPIO:

SLOAD

I

2

C:SDA (SB1)

7

SGPIO:

SCLOCK

I

2

C:SCL (SB0)

9 No Connection

10. Backplane Main Power Connectors

The 4-pin connectors, designated JP10, JP13,

JP46, JP48, JP109, and JP110, provide power to the backplane. See the table on the right for pin definitions.

Backplane

Main Power

4-Pin Connector

(JP10, JP13, JP46, and JP48)

Pin# Definition

1

2 and 3

4

+12V

Ground

+5V

11 - 34. SAS Ports

The SAS ports are used to connect the SAS drive cables. The 24 ports are designated #0

- #23. Each port is also compatible with SATA drives.

C-6


C-6 Front Jumper Locations and Pin Definitions

JP129

JP97

JP98

JP99

JP100

JP35

JP50

JP84

JP61 JP62 JP63 JP64

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 identified 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

3 2 1

Jumper

Setting

3 2 1

C-7


Jumper

JP35

JP50

JP129

Jumper Settings

Jumper Settings

1-2: Reset

2-3: Default

1-2: Reset

2-3: Default

1-2: Reset

2-3: Default

Note

MG 9072 Chip Reset #1



Fan Jumper Settings

This backplane can use up to four fans. To utilize each fan, you must configure

both jumpers as instructed below.

JP98

JP63

JP99

JP64

JP100

Jumper

JP61

JP97

JP62

Fan Jumper Settings

Jumper Settings

1-2:With Fan (Default)

2-3:No Fan


2-3:No Fan


2-3:No Fan


2-3:No Fan


2-3:No Fan


2-3:No Fan


2-3:No Fan


2-3:No Fan

FAN#1

FAN#1

FAN#2

FAN#2

FAN#3

FAN#3

FAN#4

FAN#4

Note

C-8


I

2

C and SGPIO Modes and Jumper Settings

This backplane can utilize I

2

C or SGPIO. SGPIO is the default mode and can be used without making changes to your jumper. The following information details which jumper must be configured to use SGPIO mode or restore your backplane to I

2

C mode.

Jumper

JP84

SGPIO Setting (Default)

1-2

Jumper Setting Note

SGPIO Mode Setting

Jumper

JP84

I

2

C Setting

2-3

Jumper Setting

I 2 C Setting

Note

C-9


Front LED Indicators

D45 D47 D49 D51 D3 D36 D89

D53 D54

D36

D89

D53

D45

D47

D49

D51

Front Panel LEDs

LED STATE

ON

ON

ON

ON

D3 ON

ON

ON

OFF

SPECIFICATION

Failure in Fan #1

Failure in Fan #2

Failure in Fan #3

Failure in Fan #4

Alarm #1: Overheat/Drive Failure in Channel 1



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

C-10


C-7 Rear Connectors and LED Indicators

SAS #20

SAS #16

SAS #12

SAS #8

SAS #4

SAS #0

SAS #21

SAS #17

SAS #13

SAS #9

SAS #5

SAS #1

SAS #22

SAS #18

SAS #14

SAS #10

SAS #6

SAS #2

SAS #23

SAS #19

SAS #15

SAS #11

SAS #7

SAS #3

ACT #0

FAIL #0

Rear SAS/SATA Connectors

Rear

Connector

SAS #0

SAS #1

SAS #2

SAS #3

SAS #4

SAS #5

SAS #6

SAS #7

SAS #8

SAS #9

SAS #10

SAS #11

SAS Drive

Number

Rear

Connector

SAS/SATA HDD #0 SAS #12

SAS/SATA HDD #1

SAS/SATA HDD #2

SAS/SATA HDD #3

SAS/SATA HDD #4

SAS #13

SAS #14

SAS #15

SAS #16

SAS/SATA HDD #5

SAS/SATA HDD #6

SAS/SATA HDD #7

SAS/SATA HDD #8

SAS #17

SAS #18

SAS #19

SAS #20




SAS Drive

Number

SAS/SATA HDD #12

SAS/SATA HDD #13

SAS/SATA HDD #14

SAS/SATA HDD #15

SAS/SATA HDD #16

SAS/SATA HDD #17

SAS/SATA HDD #18

SAS/SATA HDD #19

SAS/SATA HDD #20

SAS/SATA HDD #21

SAS/SATA HDD #22

SAS/SATA HDD #23

C-11


Rear LED Indicators

SAS #10

SAS #11

SAS #12

SAS #13

SAS #14

SAS #15

SAS #16

SAS #17

SAS #18

SAS #19

SAS #20

SAS #21

SAS #22

SAS #23

Rear LED

SAS #0

SAS #1

SAS #2

SAS #3

SAS #4

SAS #5

SAS #6

SAS #7

SAS #8

SAS #9

Hard Drive Activity

D12

D22

D40

D102

D13

D24

D41

D104

D14

D25

D42

D106

D15

D26

D87

D111

D18

D27

D100

D118

D21

D28

D101

D120

D39

D109

D8

D31

D88

D110

D19

D32

D103

D119

D20

D33

D105

D121

Failure LED

D5

D23

D37

D107

D6

D29

D38

D108

D7

D30

C-12

Appendix D BPN-SAS-846EL Backplane Specifications

Appendix D

BPN-SAS-846EL Backplane Specifications

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.

D-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.

•


•

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

•

Handle the RAID card by its edges only; do not touch its components, peripheral chips, memory modules or gold contacts.

•


•

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

D-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 motherboard to prevent damage to the system due to power shortage.

D-1


D-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.

D-2


Jumper Settings and Pin Definitions

D-4 Front Connectors and Jumpers

1

BUZZER_ENB1

SEC_I2C1

BUZZER1

SEC_IPMI1

2

SEC_J2 SEC_J1 SEC_J0 PRI_J2 PRI_J1

1

OVERHEATFAIL1

A

REMOTE_FAN_FAIL_SOCKET1

C A

FANFAIL1

C

PRI_J0

PRI_IPMI1

PRI_I2C1

2

L1

13

WWN

12

SAS846EL2

REV 1.01

11 10

9

EC22

6

4

BAR CODE

DESIGNED IN USA

SEC_FLASH1

R227

J25

5

S_J1

SEC_EXP1

A CA

5V_LED1

C

P_J1 PRI_EXP1

3

BUZZER_ENB1

SEC_I2C1

BUZZER1

SEC_IPMI1

+12V

GND GND

+5V

PWR6

SEC_J2

+

EC20

+12V GND

PWR5

GND +5V +12V GND GND +5V

PWR4

+12V GND

PWR3

GND +5V

FAN2

+12V GND GND +5V

PWR2

3 7 3 3 7 3

Figure 2-1: Front Connectors

SEC_J1 SEC_J0 PRI_J2 PRI_J1

EC8

+

5

+12V GND

PWR1

GND +5V

6

WWN

FAN1

3

8

1J24

2

PRI_FLASH1

PRI_MODE1

7

OVERHEATFAIL1

A


C A

FANFAIL1

C

PRI_J0

PRI_IPMI1

PRI_I2C1

4

WWN

1 and 2. Primary and Secondary I

2

C connectors (optional)

BAR CODE

DESIGNED IN USA

SEC_EXP1

SEC_FLASH1

P_J1 PRI_EXP1

WWN

R227

A CA

5V_LED1

C

J25

5. Primary and Secondary Expander Chip

EC20

+12V GND

PWR5

GND +5V +12V GND GND +5V

GND GND

+12V +5V

+

PWR6

6. EPP Connectors: J24 and J25 PWR4

7. Fan Connectors: Fan1, Fan2, and Fan3

8. SAS Connectors: PRI_J0

+12V GND

PWR3

GND +5V

FAN2

+12V GND GND +5V

PWR2

EC8

+

+12V GND

PWR1

GND +5V

FAN1



11. SAS Connectors: SEC_J0 (not available in EL1 single port backplanes)



PRI_MODE1

PRI_FLASH1

D-3


D-5 Front Connector and Pin Definitions

1 and 2. Primary and Secondary I

2

C Connectors

The I

2

C Connectors are used to monitor HDD activity and status. See the table on the right for pin definitions.

1

2

3

4

I

2

C Connector

Pin Definitions (JP44 and JP45)

Pin# Definition

Data

Ground

Clock

No Connection

3. Backplane Main Power Connectors

The 4-pin connectors, designated PWR1,

PWR2, PWR3, PWR4, PWR5, and PWR6, provide power to the backplane. See the table on the right for pin definitions.

Backplane

Main Power

4-Pin Connector

Pin# Definition

1 +12V

2 and 3

4

Ground

+5V

4. Primary and Secondary Flash Chips

The Primary and Secondary Flash Chips enhance the backplane memory.

5. Primary and Secondary Expander Chips

This Primary and Secondary Expander

Chips allow the backplane to support dual ports, cascading, and failover.

6. EPP Ports

The EPP ports are used for manufacturer diagnostic purposes only.

D-4


7. Fan Connectors

The 3-pin connectors, designated FAN1,

FAN2, and FAN3, provide power to the fans. See the table on the right for pin definitions.

Fan Connectors

Pin# Definition

1

2

3

Ground

+12V

Tachometer

8 - 13. SAS Ports

The Primary and Secondary sets of SAS ports provide expander features including cascading and failover From right to left the ports are Primary 1/2/3 and Secondary 1/2/3.

D-5


D-6 Front Jumper Locations and Pin Definitions

BUZZER_ENB1

REMOTE_FAN_FAIL_SOCKET1

SEC_Mode1

OVERHEATFAIL1

FANFAIL1

EC22

BUZZER_ENB1

SEC_I2C1 SEC_IPMI1

BUZZER1

SEC_J2 SEC_J1 SEC_J0

L1

BAR CODE

DESIGNED IN USA

SEC_FLASH1

R227

J25

+12V

GND

GND +5V

PWR6

+

EC20

+12V GND GND

PWR5

+5V

WWN

+12V GND GND +5V

PWR4

SAS846EL2

REV 1.01

S_J1

SEC_EXP1

PRI_J2 PRI_J1


OVERHEATFAIL1

A C A

FANFAIL1

C

PRI_J0

PRI_IPMI1

PRI_I2C1

P_J1

PRI_EXP1

A CA

5V_LED1

C

+12V GND

PWR3

GND +5V

FAN2

+12V GND

GND

+5V

PWR2

+

EC8

+12V GND

PWR1

GND +5V

WWN

FAN1

1J24

2

PRI_FLASH1

PRI_MODE1

BUZZER_ENB1

SEC_I2C1 SEC_IPMI1

BUZZER1

SEC_J2 SEC_J1 SEC_J0 PRI_J1


OVERHEATFAIL1

A C A

FANFAIL1

C

PRI_J0

PRI_IPMI1

PRI_I2C1

L1

WWN

SAS846EL2

REV 1.01

DESIGNED IN USA

SEC_FLASH1

+12V

GND

GND +5V

+

+12V GND GND

PWR5

+5V

S_J1

SEC_EXP1

+12V GND GND +5V optional settings. Jumpers create shorts between two pins to change the function of the connector. Pin 1 is identified 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.

A CA

5V_LED1

C

+12V GND

PWR3

GND +5V

WWN

P_J1

PRI_EXP1

FAN2

+12V GND

GND

PWR2

+5V

Connector

Pins

+12V GND

PWR1

GND +5V

FAN1

3

PRI_FLASH1

2 1

PRI_MODE1

Jumper

Setting

3 2 1

D-6

Jumper

PRI_MODE1

SEC_MODE1

BUZZER_ENB1


General Jumper Settings

1-2

Jumper Settings

1-2

Open: Disable

Closed: Enable

Note

Factory Setting

Do not change

Factory Setting

Do not change

Buzzer Enable

Socket Settings

Socket

REMOTE_FAN_FAIL_

SOCKET

Socket Setting

Connected

Note

Front Panel Fan Fail indicator

(Optional)

LED

OVERHEATFAIL1

FANFAIL1

Front Panel LEDs

STATE

ON

ON

SPECIFICATION

Overheat/Drive Failure LED Indicator

(Red light: flashing, Buzzer: On)

Failure in Fan #1

D-7


D-7 Rear Connectors and LED Indicators

D70

C559

D69

C538

D68

C537

D73

C562

D72

C561

D71

C560

C530 C529

C558

C557

#23

SAS #5

D67

C536

#22

#21

#20

C490

SAS #4

D66

C535

SAS #3

C486 C487

D65

D64

C513

R225 C485

#19

#18

C480

R224 C488

C481

SAS #1

D63

SAS #0

D62

C511

C512

TP26

C509

C507

C508

C532

C531

#17

SAS #11

D37

C435

#12

#16

SAS #10

D36

D35

C434

#15

SAS #9

#13

#14

C355

C354

C356

RB1

L166

SAS #8

R100

SAS #7

D33

D34

SAS #6

D32

C410

C432

C433

C407

C97

C94

C103

C100

C429

C428

C430

C431

#10

#9

D31

SAS #17

C409

D30

SAS #16

D29

C408

SAS #15

C393

SAS #14

D28

C386

D27

SAS #13

C385

D26

R567

SAS #12

C384

Figure 2-3: Rear Connectors

C405

TP9

SAS

#5

C383

C404

SAS

#4

SAS #22

SAS

#3

C382

SAS

#2

PRI_SRAM2

PRI_SRAM1

C470

R220 C471

C469

SAS #20

C472

C473

C478

R221 C477

C380

C381

SAS

#1

SAS

#0

SAS #19

SAS #18

Rear

Connector

SAS #0

SAS #1

SAS #2

SAS #3

SAS #4

SAS #5

SAS #6

SAS #7

SAS #8

SAS #9

SAS #10

SAS #11

Rear SAS/SATA Connectors

SAS Drive

Number

Rear

Connector


SAS/SATA HDD #1

SAS/SATA HDD #2

SAS/SATA HDD #3

SAS #13

SAS #14

SAS #15

SAS/SATA HDD #4

SAS/SATA HDD #5

SAS/SATA HDD #6

SAS/SATA HDD #7

SAS #16

SAS #17

SAS #18

SAS #19

SAS/SATA HDD #8

SAS/SATA HDD #9

SAS #20

SAS #21



SAS Drive

Number

SAS/SATA HDD #12

SAS/SATA HDD #13

SAS/SATA HDD #14

SAS/SATA HDD #15

SAS/SATA HDD #16

SAS/SATA HDD #17

SAS/SATA HDD #18

SAS/SATA HDD #19

SAS/SATA HDD #20

SAS/SATA HDD #21

SAS/SATA HDD #22

SAS/SATA HDD #23

D-8

SAS #7

SAS #8

SAS #9

SAS #10

SAS #11

SAS #12

SAS #13

SAS #14

SAS #15

SAS #16

SAS #17

SAS #18

SAS #19

SAS #20

SAS #21

SAS #22

SAS #23

Rear LED

SAS #0

SAS #1

SAS #2

SAS #3

SAS #4

SAS #5

SAS #6


Rear LED Indicators

Hard Drive Activity

ACT #0

ACT #1

ACT #2

ACT #3

ACT #4

ACT #5

ACT #6

ACT #7

ACT #8

ACT #9

ACT #10

ACT #11

ACT #12

ACT #13

ACT #14

ACT #15

ACT #16

ACT #17

ACT #18

ACT #19

ACT #20

ACT #21

ACT #22

ACT #23

Failure LED

FAIL #0

FAIL #1

FAIL #2

FAIL #3

FAIL #4

FAIL #5

FAIL #6

FAIL #7

FAIL #8

FAIL #9

FAIL #10

FAIL #11

FAIL #12

FAIL #13

FAIL #14

FAIL #15

FAIL #16

FAIL #17

FAIL #18

FAIL #19

FAIL #20

FAIL #21

FAIL #22

FAIL #23

D-9


Notes

D-10


Dual Port and Cascading Configurations

D-8 Single and Dual Port Expanders

Single Ports

SAS-846EL1 backplanes have a single-port expander that access all 24 drives and supports cascading.

Dual Ports

SAS-846EL2 backplanes have dual-port expanders that access all 24 drives. These dual-port expanders support cascading, failover, and recovery.

Port B

Secondary Ports

Expander 2

From HBA or higher backplane


Port A

Primary Ports

Expander 1

J2

J1

J2

J1

J0

J0

PRI_FLASH1

To Lower Backplane in cascaded system


Figure 3-1: SAS-846EL2 Dual Port Configuration


Port A

Primary Ports

Expander 1

J2

J1

J0


Figure 3-2: SAS-846EL1 Single Port Configuration

D-11

PRI_FLASH1


D-9 Failover

The SAS-846EL2 backplane has two expanders which allow effective failover and recovery.

Single Host Bus Adapter

SAS HBA

In a single host bus configuration, the backplane connects to one Host Bus

Adapter (HBA).

SEC_J2

SEC_J0 SEC_J1

PRI_J2

PRI_J1

PRI_J0

Port B

Expander 2

J17

Port A

Expander 1

Figure 3-3: Single HBA

Single Host Bus Adapter

Failover

If the Expander or data path in Port A fails, the system automatically switches to Port B.

SAS HBA

Dual Host Bus Adapter

In a Dual Host Bus Configuration, the backplane connects to two Host Bus

Adapters (HBA).

SEC_J2

SEC_J0 SEC_J1

PRI_J2 PRI_J1

Port A

Expander 1

PRI_J0

Port B

Expander 2

J17

Figure 3-4: Single HBA Failover

SAS HBA

SAS HBA

SEC_J2

SEC_J0 SEC_J1

Port B

Expander 2

J17

PRI_J2 PRI_J1

Port A

Expander 1

Figure 3-5: Dual HBA

PRI_J0

Dual Host Bus Adapter

Failover

If the Expander or data path in Port A fails, the system automatically switches to Port B. This maintains a full connection to all drives.

SAS HBA

SAS HBA

SEC_J2

SEC_J0 SEC_J1

Port B

Expander 2

J17

PRI_J2

PRI_J1

Port A

Expander 1

Figure 3-6: Dual HBA Failover

PRI_J0

D-12


D-10 Chassis Power Card and Support Cables

Chassis Power Card

In a cascaded configuration, the first chassis includes a motherboard and at least one Host Bus Adapter (HBA). Other servers in this enclosed system, include a power card. This section describes the supported power card for the SAS-846 series backplane.

For more information, see the PCC-JBPWR2 power card manual. This manual can be found at the http://www.supermicro.com or as an appendix in the SAS-846EL chassis manual.

A A

A A

JBPWR2

REV 1.00

Figure 3-7: Chassis Power Card (Sold Separately)

Part Number

CSE-PTJBOD-CB1

Power Card

Part Type

Power Card

Where Used

Allows the chassis to be in a

JBOD (Just a Bunch of Drives) system.

D-13


Connecting an Internal Host Bus Adapter to the

Backplane

The following section lists the most common cables used to connect the Host Bus

Adapter (HBA) to the backplane.

SEC_J2

SEC_J0 SEC_J1

PRI_J2 PRI_J1

PRI_J0

J17

HBA

(Host Bus Adapter)

Figure 3-8: Single Internal Host Bus Adapter

SEC_J2

SEC_J0 SEC_J1

PRI_J2 PRI_J1

PRI_J0

J17

HBA

(Host Bus Adapter)

HBA

(Host Bus Adapter)

Figure 3-9: Dual Internal Host Bus Adapter

Supported Internal HBA Cables

Use the following listed cables to create connections between the internal HBA and

SAS-846EL backplane. The cables required depend on the HBA connector.

Cable Name: IPASS TO 4-LANE

Part #: CBL-0117L Length: 46 cm (18 inches)

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

(SFF-8087/mini-sas) connector (36 pins) at the other. This cable connects from the

HBA to the SAS-846EL backplane.

D-14


Cable Name: IPASS (mini SAS) TO IPASS (mini SAS)

Part #: CBL-0108L-02 Length: 39 cm (15 inches)

Part #: CBL-0109L-02

Part #: CBL-0110L-02

Length: 22 cm (9 inches)

Length: 18 cm (7 inches)

Description: This cable has an ipass (SFF-8087/mini-sas) connector (36 pins) at each end. It connects from the HBA to the SAS-846EL backplane.

D-15


Connecting an External Host Bus Adapter to the

Backplane

This backplane supports external Host Bus Adapters. In this configuration, the HBA and the backplane are in different physical chassis. This allows a JBOD (Just a

Bunch Of Drives) configuration from an existing system.

Single External Host Bus Adapter

SEC_J2

SEC_J0 SEC_J1

PRI_J2

PRI_J1

PRI_J0

HBA

(Host Bus Adapter)

J17

Power Card

CBL-0200L

External HBA Cable

Figure 3-10: Single External Host Adapter

Dual External Host Bus Adapter

HBA

(Host Bus Adapter)

HBA

(Host Bus Adapter)

SEC_J2

SEC_J0 SEC_J1

PRI_J2

PRI_J1

PRI_J0

J17

Power Card

CBL-0200L

External HBA Cables

Figure 3-11: Dual External Host Bus Adapter

D-16


Supported External HBA to Backplane Cable

Use the following cable if your external HBA has an InfiniBand connector.

Figure 3-12: SAS InfiniBand Cable (CBL-0200L)

Cable Name: SAS InfiniBand to Mini SAS X4 1M cable, PBF

Part #: CBL-0200L Length: 1 meter

Description: This cable has an InfiniBand connector (SFF-8470) on one end and an SFF-8088-1X (26-pins) at the other end.

D-17


Connecting Multiple Backplanes in a Single Channel

Environment

This section describes the cables used when cascading from a single HBA. These connections use CBL-0167L internal cables and CBL-0166L external cables.

PRI_J2

SEC_J2 PRI_J1

SEC_J0 SEC_J1

PRI_J0

Port B Expander 2

J17

Port A Expander 1

HBA (

Host Bus Adapter)

CBL-0167L with Single Port Assembly

(internal cable)

CBL-0166L

(external cable)

PRI_J2

SEC_J2 PRI_J1

SEC_J0 SEC_J1

PRI_J0

Port B Expander 2 Port A Expander 1

J17

Power Card

Figure 3-13: Single HBA Configuration

D-18


Single HBA Configuration Cables

Single Port Cable Assembly

Figure 3-14: Single Port Internal Cable (CBL-0167L)

Cable Name: SAS EL2/EL1 Backplane Cable (Internal) with 2-port Cascading Cable,

68 cm

Part #: CBL-0167L (SFF-8087 to SFF-8088 x1)

Ports: Single

Placement: Internal cable

Description: Internal cable. Connects the backplane to the Host Bus Adapter (HBA) or external port. Used in single port environments.

Figure 3-15: External Cable (CBL-0166L)

Cable Name: SAS EL2/EL1 Cascading Cable (External), 68cm

Part #: CBL-0166L (SFF-8088 1x to SFF-8088 x1)

Ports: Single or Dual

Placement: External cable

Description: External cascading cable. Connects ports between servers. With most connectors, use one cable for single port connections and two cables for dual port connections.

D-19


Connecting Multiple Backplanes in a Dual Channel

Environment

This section describes the cables used when cascading from dual HBAs. These connections use CBL-0168L internal cables and CBL-0166L external cables.

SEC_J2 PRI_J2

PRI_J1

SEC_J0 SEC_J1

PRI_J0


J17


HBA

(Host Bus Adapter)

HBA

(Host Bus Adapter)

Cable 0168L with Single Port Assembly


Cable 0166L


PRI_J2

SEC_J2 PRI_J1

SEC_J0 SEC_J1

PRI_J0


J17


Power Card

Figure 3-16: Dual HBA Configuration

D-20


Dual HBA Configuration Cables

Dual Port Cable

Assembly

Figure 3-17: Dual Port Internal Cable (CBL-0168L)

Cable Name: SAS Dual-port Cable Assembly, 68/76cm

Part #: CBL-0168L

Ports: Dual

Placement: Internal cable

Description: Internal cascading cable. Connects the backplane to the Host Bus

Adapter (HBA) or external port. Used in dual port environments.

Figure 3-18: External Cable (CBL-0166L)

Cable Name: SAS EL2/EL1 Cascading Cable (External), 68cm

Part #: CBL-0166L

Ports: Single or Dual

Placement: External cable

Description: External cascading cable. Connects ports between servers. Use one cable for single port connections and two cables for dual port connections.

D-21


D-11 Supported Cascading Configurations

Cascading allows the system to access data at a faster rate by allowing several backplanes to share resources to reduce latency time.

The first backplane in a cascaded system requires a motherboard and HBA. Other servers require a power control card with no motherboard and no HBA. For more information, see the SC846 Chassis Manual available at www.supermicro.com.

PRI_J2

SEC_J2 PRI_J1

SEC_J0 SEC_J1

PRI_J0


J17

HBA (

Host Bus Adapter)

Cable 0167L


PRI_J2

SEC_J2 PRI_J1

SEC_J0 SEC_J1

PRI_J0


J17

Power Card

Single Port Cable

Assembly

Cable 0166L


SEC_J2 PRI_J2 PRI_J1

SEC_J0 SEC_J1

PRI_J0


J17

Power Card

Figure 3-19: Simple Cascaded Configuration

D-22


Server System with Single SAS HBA

The expanders allow horizontal branching. This configuration also applies to dual ports.

HBA

SEC_J2

PRI_J2

PRI_J1

SEC_J0 SEC_J1

PRI_J0


Cable 0167L


SEC_J2

PRI_J2

PRI_J1

SEC_J0 SEC_J1

PRI_J0


Power Card

Cable 0166L


SEC_J2

PRI_J2

PRI_J1

SEC_J0 SEC_J1

PRI_J0


Power Card

SEC_J2

PRI_J2

PRI_J1

SEC_J0 SEC_J1

PRI_J0


Power Card

Single Port Cable

Assembly

SEC_J2

PRI_J2

PRI_J1

SEC_J0 SEC_J1

PRI_J0


Power Card

SEC_J2

PRI_J2

PRI_J1

SEC_J0 SEC_J1

PRI_J0


Power Card

Figure 3-20: Cascaded Configuration with Horizontal Branching

D-23


Dual SAS HBA and Cascaded Configuration


SEC_J0 SEC_J1

PRI_J0


J17


HBA

HBA

Cable 0168L


Dual Port Cable

Assembly

Cable 0166L

(external cables)

SEC_J2

PRI_J2

PRI_J1

SEC_J0 SEC_J1

PRI_J0


J17


Power Card


SEC_J0 SEC_J1

PRI_J0


J17


Power Card

Figure 3-21: Dual SAS HBA with Cascaded Configuration

D-24


Dual SAS HBA and Cascaded Configuration with

Branching

Port B Ex. 2 Port A Ex. 1

HBA

HBA


Power

Card

Port B Ex. 2

Port A Ex. 1



Power

Card

Power

Card

Cable 0166L



Figure 3-22: Dual SAS HBA with Cascaded Configuration and Branching

D-25


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 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.

D-26

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