Supermicro SC848A-R1800B User Manual
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Supermicro SC848A-R1800B User Manual

Sc848 chassis series
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S
UPER
®
SC848 CHASSIS SERIES
SC848A-R1800B
USER'S MANUAL
1.0a

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Summary of Contents for Supermicro SC848A-R1800B

  • Page 1 UPER ® SC848 CHASSIS SERIES SC848A-R1800B USER’S MANUAL 1.0a...
  • Page 2 SC848 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.
  • Page 3 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 SC848 chassis. Installation and maintenance should be performed by experienced technicians only. This manual lists compatible parts available when this document was published. Al- ways refer to the our Web site for updates on supported parts and configurations.

  • Page 4: Manual Organization

    SC848 Chassis Manual 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 SC848 chassis. This chapter also includes contact information. Chapter 2: System Safety This chapter lists warnings, precautions, and system safety.
  • Page 5 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: Cables and Hardware This section provides information on cabling, and other hardware which is compat- ible with your chassis.

  • Page 6: Table Of Contents

    SC848 Chassis Manual Table of Contents Chapter 1 Introduction Overview ......................1-1 Shipping List ....................1-1 Part Numbers ....................1-1 Where to get Replacement Components ............1-2 Contacting Supermicro ..................1-3 Returning Merchandise for Service..............1-4 Chapter 2 System Safety Overview ......................
  • Page 7 Preface Changing the Power Distributor Board ............4-18 4-10 Configuring the Peripheral Drawer..............4-21 Opening the Peripheral Drawer ..............4-22 Installing 2.5" and 3.5" Drives in the Peripheral Drawer ......4-23 Installing Peripheral Devices in the Peripheral Drawer ........ 4-25 Removing Peripheral Devices from the Peripheral Drawer ......
  • Page 8 SC848 Chassis Manual Notes viii...

  • Page 9: Chapter 1 Introduction

    Chapter 1: Introduction Chapter 1 Introduction Overview Supermicro’s SC848 4U chassis features a unique and highly-optimized design. The chassis is equipped with three 900 Watt (2+1 redundant for a total of 1800 Watts), high-efficiency power supplies. High-performance fans provide ample optimized cooling for FB-DIMM memory modules and twenty-four hot-swappable drive bays offer maximum storage capacity.

  • Page 10: Where To Get Replacement Components

    SC848 Chassis Manual 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.

  • Page 11: Contacting Supermicro

    Chapter 1: Introduction Contacting Supermicro Headquarters Address: Super Micro Computer, Inc. 980 Rock Ave. San Jose, CA 95131 U.S.A. Tel: +1 (408) 503-8000 Fax: +1 (408) 503-8008 Email: marketing@supermicro.com (General Information) support@supermicro.com (Technical Support) Web Site: www.supermicro.com Europe Address: Super Micro Computer B.V. Het Sterrenbeeld 28, 5215 ML 's-Hertogenbosch, The Netherlands Tel:...

  • Page 12: Returning Merchandise For Service

    SC848 Chassis Manual Returning Merchandise for Service A receipt or copy of your invoice marked with the date of purchase is required be- fore 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.

  • Page 13: Chapter 2 System Safety

    Chapter 2: System Safety Chapter 2 System Safety 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.
  • Page 14 SC848 Chassis Manual 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 and floppy drives (not necessary for hot swappable drives).

  • Page 15: General Safety Precautions

    Chapter 2: System Safety 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.
  • Page 16 SC848 Chassis Manual • 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.

  • Page 17: Chapter 3 System Interface

    Chapter 3: System Interface Chapter 3 System Interface 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.

  • Page 18: Control Panel Buttons

    SC848 Chassis Manual Control Panel Buttons There are two push-buttons located on the left handle of the chassis. These are (in order from top to bottom) a power on/off button and a reset button. Power: The main power button is used to apply or remove power from the power supply to the server system.
  • Page 19 Chapter 3: System Interface NIC1: Indicates network activity on GLAN1 when flashing. NIC2: Indicates network activity on GLAN2 when flashing. Overheat/Fan Fail: When this LED flashes, it indicates a fan failure. When con- tinuously 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.

  • Page 20: Drive Carrier Leds

    SC848 Chassis Manual Drive Carrier LEDs Your chassis uses SAS/SATA. SAS/SATA Drives Each SAS/SATA drive carrier has two LEDs. • Blue: Solid on = Drive is present and available. Blinking = Drive is actively being accessed. Each Serial ATA drive carrier has a blue LED. When illuminated in a solid on state, this blue LED (on the front of the SAS/SATA drive carrier) indicates drive activity.

  • Page 21: Chapter 4 Chassis Setup And Maintenance

    Chapter 4: Chassis Setup and Maintenance Chapter 4 Chassis Setup and Maintenance 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.

  • Page 22: Removing The Chassis Cover

    SC848 Chassis Manual Removing the Chassis Cover Remove this screw (If necessary) Figure 4-1: Removing the Chassis Cover Removing the Chassis Cover Press the release tabs to remove the cover from the locked position. Press both tabs at the same time. Once the top cover is released from the locked position, slide the cover toward the rear of the chassis.

  • Page 23: Installing And Removing Hard Drives

    Chapter 4: Chassis Setup and Maintenance Installing and Removing Hard Drives Figure 4-2: Removing Hard Drive Removing Hard Drive Trays from the Chassis Press the release button on the drive tray. This extends the drive bay handle. Use the handle to pull the drive out of the chassis.
  • Page 24 SC848 Chassis Manual Dummy Drive Drive Tray Figure 4-3: 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.
  • Page 25 Chapter 4: Chassis Setup and Maintenance SAS/SATA Hard Drive Drive Tray Figure 4-5: Installing the Hard Drive into the Tray Slide the hard drive into the tray with the printed circuit board side facing down. Carefully align the mounting holes in both the drive tray and the hard drive. Secure the hard drive to the tray using six screws.

  • Page 26: Installing The Motherboard

    SC848 Chassis Manual 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 Review the documentation that came with your motherboard. Become familiar with component placement, requirements, and precautions.

  • Page 27: Permanent And Optional Standoffs

    DVD-ROM, CD-ROM, and FLOPPY DRIVE Chapter 4: Chassis Setup and Maintenance Flat head Round head Pan head Round head Permanent and Optional Standoffs 6-32 x 5 mm M2.6 x 5 mm M3 x 5 mm 6-32 x 5 mm [0.197] [0.197] [0.197] [0.197]...
  • Page 28 SC848 Chassis Manual Figure 4-10: Motherboard Installation As required by your motherboard, install standoffs in any areas that do not have a permanent standoff. To do this, place a hexagonal standoff through the bottom the chassis and tighten the standoff with a wrench. Lay the motherboard on the chassis aligning the permanent and optional standoffs Secure the motherboard to the chassis using the rounded, Phillips head...
  • Page 29 Chapter 4: Chassis Setup and Maintenance Secure the CPU(s), heatsinks, and other components to the motherboard as described in the motherboard documentation. Connect the cables between the motherboard, backplane, chassis, front panel, and power supply, as needed. See the Routing Cables in the Pe- ripheral Drawer section of this manual for details on routing cabling to the peripheral drawer.

  • Page 30: Installing Heatsinks On The Motherboard

    SC848 Chassis Manual Installing Heatsinks on the Motherboard Figure 4-12: Installing Heatsinks on the Motherboard Installation Heatsinks may be required on the SC848 motherboard. The installation process of these heatsinks may vary with different motherboards. Typically, heatsinks will clip onto the motherboard, and may be installed without removing the motherboard. Check the documentation that came with your motherboard for specific instructions on how to install heatsinks.

  • Page 31: Add-On Card/Expansion Slot Setup

    Chapter 4: Chassis Setup and Maintenance Add-on Card/Expansion Slot Setup Your SC848 chassis includes I/O slots for add-on cards and expansion cards. Add-on/Expansion Card Slots Figure 4-13: Installing Add-on and Expansion Cards The SC848 chassis includes slots for add-on cards and expansion cards. Installing Add-on and Expansion Cards in the SC848 Chassis Disconnect the power supply, lay the chassis on a flat surface, and open the chassis cover.

  • Page 32: Installing The Air Shroud

    SC848 Chassis Manual Installing the Air Shroud Figure 4-14: Air Shroud for SC848 Chassis Air shrouds concentrate airflow to maximize fan efficiency. The SC848 chassis air shroud does not require screws for installation. Air Shroud Part No. Description MCP-310-84801-0B Mylar air shroud for Intel X7.X6 Quad motherboard MCP-310-84802-0B* Mylar air shroud for AMD H8 Quad motherboard *Before installing the AMD airshroud:...

  • Page 33: Checking The Server's Air Flow

    Chapter 4: Chassis Setup and Maintenance Installing the Air Shroud Place air shroud in the chassis, fitting the air shroud between the middle bracket and the rear window. Insert the four front hooks of the air shroud into the holes on the back of the middle bracket, and the three rear hooks in the gap between the rear fans and the rear window.

  • Page 34: System Fans

    SC848 Chassis Manual System Fans Seven 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 Figure 4-16: Front System Fan Release Tab Release Tab Figure 4-17: Rear System Fans Replacing a System Fan If necessary, open the chassis while the power is running to determine which...
  • Page 35 Chapter 4: Chassis Setup and Maintenance Figure 4-18: Installing a Front System Fan 4-15...

  • Page 36: Power Supply

    SC848 Chassis Manual Power Supply The SC848 chassis includes three 900 Watt (2+1 redundant for a total of 1800 Watts) high-efficiency, power supplies. These power supplies are auto-switching capable. This enables it to automatically sense and operate at a 100v to 240v input voltage.
  • Page 37 Chapter 4: Chassis Setup and Maintenance Power Supply Dummy Cover Power Supply Figure 4-20: Installing the Power Supply and Dummy Cover Replace the failed power module with the same model, or use a dummy cover if power redundancy is not required. Push the new power supply module or dummy cover into the power bay until it clicks into the locked position.

  • Page 38: Changing The Power Distributor Board

    SC848 Chassis Manual Changing the Power Distributor Board The SC848 chassis requires 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 Board Power down the server and remove the plug from the wall socket or power strip.
  • Page 39 Chapter 4: Chassis Setup and Maintenance Remove the four screws securing the power distributor board to the housing. Gently push the power distributor board backward from the locked position (7A), lift it upwards (7B), then pull it forwards to remove it from the chassis (7C).
  • Page 40 SC848 Chassis Manual Replace the power distributor board cover by routing three pairs of 4-pin backplane connector cables out the front of the power distributor board cover. Route the 24-pin connector cable and the two 8-pin motherboard connector cables out the top of the power distributor board cover and leave the 4-pin connector aside for peripheral use.

  • Page 41: 4-10 Configuring The Peripheral Drawer

    Chapter 4: Chassis Setup and Maintenance 4-10 Configuring the Peripheral Drawer The SC848 chassis supports the following peripheral drawer configuration op- tions, allowing for the tray to be configured for a wide variety of uses: Peripheral Part Number Device Single 3.5" HDD MCP-220-00048-0N Dual 2.5"...

  • Page 42: Opening The Peripheral Drawer

    SC848 Chassis Manual Opening the Peripheral Drawer After selecting the optimal configuration options for your system, follow the instruc- tions below to assemble the peripheral drawer with the options desired. Opening the Peripheral Drawer Power down and unplug the system from the outlet. Unplug the fan cables from the motherboard if necessary, and then remove the middle bracket (See page 4-7) Disconnect the existing power and data cables which extend from the periph-...

  • Page 43: Installing 2.5" And 3.5" Drives In The Peripheral Drawer

    Chapter 4: Chassis Setup and Maintenance Installing 2.5" and 3.5" Drives in the Peripheral Drawer Each drive tray (A) holds either one 3.5" HDD (B), or two 2.5" HDDs in a mounting bracket (C). Installing HDDs into the Drive Tray Secure the drive into the drive tray using one of the two methods below: If installing one 3.5"...
  • Page 44 SC848 Chassis Manual Figure 4-30: Installing 3.5" HDDs into the Peripheral Drawer Figure 4-31: Installing 2.5" HDDs into the Peripheral Drawer 4-24...

  • Page 45: Installing Peripheral Devices In The Peripheral Drawer

    Chapter 4: Chassis Setup and Maintenance Installing Peripheral Devices in the Peripheral Drawer Installing Peripheral Devices Remove the dummy covers from the front of the peripheral device bays on the front of the peripheral drawer. Figure 4-32: Removing the Dummy Covers Install the peripheral devices into the peripheral device bays.

  • Page 46: Removing Peripheral Devices From The Peripheral Drawer

    SC848 Chassis Manual Removing Peripheral Devices from the Peripheral Drawer Removing Peripheral Devices Press the release latch on the back of the peripheral device bay towards the wall of the chassis. Peripheral Device Release Latches Figure 4-34: Peripheral Device Release Latches Press the back of the peripheral device, gently pushing it forward out the front of the peripheral device bay.

  • Page 47: Routing Cables In The Peripheral Drawer

    Chapter 4: Chassis Setup and Maintenance Routing Cables in the Peripheral Drawer Routing Cabling in the Peripheral Drawer Connect the power and signal cables to the devices in the peripheral drawer. Route the cables through the O-clip at the back of the drawer. Push the drawer back into the chassis, while simultaneously pulling the cables which lead to the drawer without breaking or disconnecting the cables, until the drawer clicks into the locked position.

  • Page 48: 4-11 Accessing The Backplane

    SC848 Chassis Manual 4-11 Accessing the Backplane The SC848 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 Power down and unplug the system from any power source.
  • Page 49 Chapter 4: Chassis Setup and Maintenance Remove the five lower screws securing the backplane housing to the chassis floor and set these aside for later use. Remove the two side screws on the right side of the chassis. Remove Five Lower Screws Remove Two Side Screws...
  • Page 50 SC848 Chassis Manual Installing the Backplane Connect the power cables to the backplane. Gently slide the backplane and its housing back into position in the chassis. Slide the Backplane into the Chassis Figure 4-40: Replacing the Backplane in the Chassis Replace the five lower screws which secure the backplane housing to the chassis floor.
  • Page 51 Chapter 4: Chassis Setup and Maintenance Replace the four upper screws which secure the backplane housing to the chassis. Reconnect all cabling to the backplane. Replace the Four Upper Screws Figure 4-42: Replacing the Four Upper Screws 4-31...
  • Page 52 SC848 Chassis Manual Notes 4-32...

  • Page 53: Chapter 5 Rack Installation

    Chapter 5: Rack Installation Chapter 5 Rack Installation 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. Unpacking the System You should inspect the box the chassis was shipped in and note if it was damaged in any way.

  • Page 54: Rack Precautions

    SC848 Chassis Manual Warnings and Precautions! • This product is for installation only in a Restricted Access Location (dedicated equipment rooms, service closets and similar locations). Rack Precautions • Safety Warning: Before performing any chassis setup or maintenance, it is recommended that the chassis be removed from the rack and placed on a stable bench or table.

  • Page 55: Rack Mounting Considerations

    Chapter 5: Rack Installation • 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. Rack Mounting Considerations Ambient Operating Temperature If installed in a closed or multi-unit rack assembly, the ambient operating tempera-...

  • Page 56: Rack Mounting Instructions

    SC848 Chassis Manual Rack Mounting Instructions Rack Rails Assembly This section provides information on installing the SC848 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.

  • Page 57: Installing The Inner Rails On The Chassis

    Chapter 5: Rack Installation Figure 5-2: Installing the Rails Installing the Inner Rails on the Chassis Installing the Inner Rails The inner rails are etched with "L" (Left side) and "R" (Right side). Place one inner rail on the side of the chassis, aligning the hooks of the chassis with the inner rail holes.

  • Page 58: Installing The Outer Rails Onto A Rack

    SC848 Chassis Manual Attach Outer Rails Together Secure to the Secure to the Front of the Rack Rear of the Rack Fixed Pins Figure 5-3: Assembling the Outer Rails Installing the Outer Rails onto a Rack Installing the Outer Rails Attach the short bracket to the outside of the long bracket.
  • Page 59 Chapter 5: Rack Installation Screws and Washers Screws and Washers Figure 5-4: Installing the Outer Rails to the Rack...

  • Page 60: Installing The Chassis Into A Rack

    SC848 Chassis Manual Installing the Chassis into a Rack Installing the Chassis into a Rack: Confirm that chassis includes the inner rails (A) Also, confirm that the outer rails (B) are installed on the rack. Line chassis rails (A) with the front of the rack rails (B). 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).

  • Page 61: Removing The Chassis From The Rack

    Chapter 5: Rack Installation Removing the Chassis from the Rack Caution! It may be dangerous for a single person to off-load the heavy chassis from the rack without assistance. Be sure to have sufficient assistance supporting the chassis when removing it from the rack.

  • Page 62: Notes

    SC848 Chassis Manual Notes 5-10...

  • Page 63: Appendix A Sc848 Cables And Hardware

    Appendix A: Chassis Cables Appendix A SC848 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.
  • Page 64 SC848 Chassis Manual A-3 Compatible Cables These cables are compatible with the SC848 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.

  • Page 65: Extending Power Cables

    Appendix A: Chassis Cables Extending Power Cables Although Supermicro 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.
  • Page 66 SC848 Chassis Manual 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. HARD DRIVE Flat head Pan head 6-32 x 5 mm 6-32 x 5 mm...

  • Page 67: Appendix B Sc848 Power Supply Specifications

    Appendix B: Power Supply Specifications Appendix B SC848 Power Supply Specifications This appendix lists power supply specifications for your chassis system. SC848TQ-R1800B 900W (2+1) for a total of 1800W MFR Part # PWS-902-1R 100 - 240V Rated AC Volt- 60 - 50Hz 11 - 4.5 Amp +5V standby 4 Amp +12V 75 Amp...
  • Page 68 SC848 Chassis Manual Notes...

  • Page 69: Appendix C Sas-846A Backplane Specifications

    Appendix C: SAS-846A Backplane Specifications Appendix C SAS-846A 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 Electrostatic Discharge (ESD) can damage electronic com ponents. To prevent dam- age to your system, it is important to handle it very carefully.
  • Page 70 SC848 Chassis Manual 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-4 Introduction to the SAS-846A Backplane The SAS-846A backplane has been designed to utilize the most up-to-date technol- ogy available, providing your system with reliable, high-quality performance.
  • Page 71 Appendix C: SAS-846A Backplane Specifications Jumper Settings, Connectors and Pin Definitions C-5 Front Connectors and Jumpers JP107 JP107:OH#3 TEMP. JP45 JP45:OH#2 TEMP. C359 OPEN:45 BUZZER RESET OPEN:45 1-2:50 1-2:50 JP25:OH#1 TEMP. R324 R325 2-3:55 2-3:55 OPEN:45 1-2:50 C282 JP106 JP105 2-3:55 CH#20~23 CH#8~11...
  • Page 72 SC848 Chassis Manual C-6 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 manufactur- er's diagnostic purposes only.

  • Page 73: Explanation Of Jumpers

    Appendix C: SAS-846A Backplane Specifications C-7 Front Jumper Locations and Pin Definitions JP97 JP18 JP98 JP129 JP107 JP107:OH#3 TEMP. JP45 JP45:OH#2 TEMP. C359 JP99 OPEN:45 BUZZER RESET OPEN:45 1-2:50 1-2:50 JP25:OH#1 TEMP. R324 2-3:55 2-3:55 R325 OPEN:45 1-2:50 C282 JP106 JP105 2-3:55 CH#20~23...

  • Page 74: Fan Jumper Settings

    SC848 Chassis Manual Fan Jumper Settings This backplane can use up to four fans. To utilize each fan, you must configure both jumpers as indicated below. Fan Jumper Settings Jumper Jumper Settings Note 1-2:With Fan (Default) FAN#1 JP61 2-3:No Fan 1-2:With Fan (Default) FAN#1 JP97...

  • Page 75: Front Led Indicators

    Appendix C: SAS-846A Backplane Specifications Front LED Indicators JP25:OH#1 TEMP. OPEN:45 1-2:50 2-3:55 JP107 JP107:OH#3 TEMP. JP45 JP45:OH#2 TEMP. C359 BUZZER RESET OPEN:45 OPEN:45 1-2:50 1-2:50 JP25:OH#1 TEMP. R324 2-3:55 2-3:55 R325 OPEN:45 1-2:50 C282 JP106 JP105 2-3:55 CH#20~23 CH#8~11 JSM6 JSM3 JP129:9072#3 RESET...
  • Page 76 SC848 Chassis Manual C-8 Rear Connectors and LED Indicators SAS #11 SAS #17 SAS #23 SAS #5 SAS #10 SAS #16 SAS #22 SAS #4 SAS #3 SAS #9 SAS #15 SAS #21 SAS #2 SAS #14 SAS #20 SAS #8 SAS #1 SAS #7 SAS #13...
  • Page 77 Appendix C: SAS-846A Backplane Specifications Rear LED Indicators Rear LED Hard Drive Activity Failure LED 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 #12 SAS #13 SAS #14 SAS #15...
  • Page 78 SC848 Chassis Manual Disclaimer (cont.) The products sold by Supermicro are not intended for and will not be used in life sup- port 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 significant injury or loss of life or catastrophic property damage.

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