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Silicon Graphics 1450 Maintenance Manual

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SGI
1450 Server
Maintenance Guide
Document Number 007-4276-001

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Summary of Contents for Silicon Graphics 1450

  • Page 1 ™ 1450 Server Maintenance Guide Document Number 007-4276-001...
  • Page 2 Laws of the United States. Contractor/manufacturer is Silicon Graphics, Inc., 1600 Amphitheatre Pkwy., Mountain View, CA 94043-1351. Silicon Graphics is a registered trademark and SGI and the SGI logo are trademarks of Silicon Graphics, Inc. Adaptec is a registered trademark of Adaptec, Inc. Compaq is a trademark of Compaq Computer Corporation. IBM and OS/2 are registered trademarks of International Business Machines.

  • Page 3: Record Of Revision

    Record of Revision Version Description June 2000 Initial Rev 007-4276-001...

  • Page 5: Table Of Contents

    Contents Figures . . xi Tables . . xiii About This Guide. . xv Obtaining Publications . xv Reader Comments . . xv Detailed Chassis Description Chassis Features . Peripherals . Peripheral Bay. Device Bay Media Bay. Hard Drive Bay .
  • Page 6 Contents Memory Retention Bar . . 26 Removing the Memory Retention Bar . . 26 Installing the Memory Retention Bar . 27 Baseboard . 27 Removing the Baseboard . . 28 Installing the Baseboard . . 31 Power Subsystem . .
  • Page 7 Contents Processors . . 57 Removing a Processor . 59 Installing a Processor . . 59 Removing Processor Retention Mechanisms . . 59 Installing Processor Retention Mechanisms . 60 Installing Processor Handles . 60 Installing Processor Heatsinks . . 60 Voltage Regulator Modules (VRMs).
  • Page 8 Contents Specific Problems and Corrective Actions . . 77 Power Light Does Not Light . . 78 No Beep Codes. . 78 No Characters Appear on Screen . 79 Characters Are Distorted or Incorrect . . 79 System Cooling Fans Do Not Rotate Properly . .
  • Page 9 Contents Baseboard Connectors .105 Power Distribution Board Interface Connectors (J9B1, J9D1, J9B2) . .107 Front Panel Interface (J9E3) . .111 Hot-Plug PCI Indicator Board Interface (J3D1) .113 Memory Module Interface (J6F1) .115 Processor Module Connector (J7A1, J7B1, J7C1, J7D1) .119 Processor Termination, Regulation, and Power .

  • Page 11: Figures

    Figures Server in Rack-Mountable Configuration Figure 1-1 Front Cover Retaining Screws Figure 1-2 Top Cover Thumbscrew . Figure 1-3 (Left) Server without Covers. (Right) Overhead View of E-Bay . Figure 1-4 Hard Drive in Drive Carrier . . 10 Figure 1-5 Power Subsystem .
  • Page 12 Figures ICMB Card . . 71 Figure 3-7 Example of an ICMB Card Attached to a Chassis . 72 Figure 3-8 Internal Cable Attached to the ICMB Card . . 72 Figure 3-9 External Cable Attached to the Card . .
  • Page 13 Table 4-2 Recovery BIOS Port-80 Codes. . 83 Table 4-3 Equipment Log . . 84 Table 4-4 SGI 1450 server Cables and Connectors . . 87 Table A-1 Keyboard and Mouse Connectors . 90 Table A-2 Serial Ports . . 91 Table A-3 Parallel Port .
  • Page 14 Tables FFC connector Table A-17 Connector Description . Table A-18 Main Power Connector A (J9B1) . Table A-19 Main Power Connector B (J9D1) . Table A-20 Auxiliary Power Connector (J9B2) Table A-21 Front Panel Connector (J9E3) . Table A-22 Hot-Plug Indicator Board Connector Pinout (J3D1) . Table A-23 Memory Module Interface .

  • Page 15: About This Guide

    See the SGI 1450 Server Mounting Instructions for instructions on mounting the SGI 1450 server in a 19-inch rack. See the SGI 1450 Server Quick Start Guide for information on setting up your system. Obtaining Publications To obtain SGI documentation, go to the SGI Technical Publications Library at http://techpubs.sgi.com.
  • Page 16 Send mail to the following address: Technical Publications 1600 Amphitheatre Pkwy., M/S 535 Mountain View, California 94043-1351 • Send a fax to the attention of “Technical Publications” at +1 650 932 0801. SGI values your comments and will respond to them promptly. 007-4276-001...

  • Page 17: Detailed Chassis Description

    Chapter 1 Detailed Chassis Description This chapter provides a detailed description of chassis features. For a general description, see the SGI 1450 Server User’s Guide. The following sections are covered: • Chassis Features • Peripherals • Hard Drive Bay •...

  • Page 18: Chassis Features

    1: Detailed Chassis Description Chassis Features The SGI 1450 server is designed either to be mounted in a standard 19-inch rack (rack mode) or to stand upright (pedestal mode). Table 1-1 shows the physical specifications for the SGI 1450 server in rack mode.

  • Page 19: Figure 1-1 Server In Rack-Mountable Configuration

    Chassis Features Figure 1-1 shows an SGI 1450 server in rack-mountable configuration. Server in Rack-Mountable Configuration Figure 1-1 A. Top cover. The top cover protects the contents of the chassis. B. Front cover. The front cover protects the peripheral devices.

  • Page 20: Figure 1-2 Front Cover Retaining Screws

    1: Detailed Chassis Description The chassis has two covers: a front cover and a top cover. The front cover is held in place by three screws. The screws are noted by “A” in Figure 1-2. Figure 1-2 Front Cover Retaining Screws 007-4276-001...

  • Page 21: Figure 1-3 Top Cover Thumbscrew

    Chassis Features The top cover is held in place by two thumbscrews, each located at the top rear corner of the chassis. One of two thumbscrews is noted by “A” in Figure 1-3. Figure 1-3 Top Cover Thumbscrew A bezel snaps on to the front of the chassis and allows adequate airflow to cool the system components.

  • Page 22: Figure 1-4 (Left) Server Without Covers. (Right) Overhead View Of E-Bay

    (Left) Server without Covers. (Right) Overhead View of E-Bay Warning: The total power requirement for the SGI 1450 server exceeds the 240 VA energy hazard limit that defines an operator-accessible area. Only qualified service technicians should access the processor, memory, power subsystem, and non-hot-plug areas of the baseboard.

  • Page 23: Table 1-2 Chassis Feature Summary

    Chassis Features Table 1-2 summarizes the SGI 1450 server features, using the callouts provided in Figure 1-4. Chassis Feature Summary Table 1-2 Feature Description A.Peripheral Bay A peripheral bay in the front of the system has a 5.25-inch device bay and a media bay.
  • Page 24 1: Detailed Chassis Description Chassis Feature Summary Table 1-2 (continued) Feature Description E. Electronics Bay The E-Bay contains the baseboard. The baseboard has the following (E-Bay) major components: Up to four Intel® Pentium® III Xeon™ processors Server Set™ III HE chipset Up to sixteen PC/100-compliant registered ECC SDRAM memory modules that support up to 16 gigabytes of Error Checking and Correcting (ECC) Synchronous Dynamic RAM...

  • Page 25: Peripherals

    Peripherals Chassis Feature Summary Table 1-2 (continued) Feature Description E5. Baseboard Form-factor, 16 (13 inches, ATX-style backpanel I/O) The baseboard is mounted horizontally in a subassembly called the E-Bay. The E-Bay is mounted towards the rear of the chassis. The baseboard contains connectors for installing up to four Pentium III Xeon processors in single-edge contact (SEC) cartridges.

  • Page 26: Hard Drive Bay

    1: Detailed Chassis Description Hard Drive Bay The chassis contains one hard drive bay. The hard drive bay accommodates up to five 3.5-inch by 1.0-inch hot-swap Ultra 160 SCSI SCA hard drives You can access the hard drives by opening the front bezel door. As part of the hot-swap implementation, each hard drive requires a hard drive carrier.

  • Page 27: Power Subsystem

    The SAF-TE board provides SAF-TE features and hard drive failure indicators. Power Subsystem The SGI 1450 server uses a universal input-switching power subsystem (PSBS). This subsystem provides up to 630 watts DC. The subsystem also minimizes the RMS current drawn from each AC line by providing power factor corrected AC input. The chassis can be configured with one, two, or three 350-watt power supply modules.

  • Page 28: Figure 1-6 Power Subsystem

    Figure 1-6 Power Subsystem Warning: The total power requirement for the SGI 1450 server exceeds the 240 VA energy hazard limit that defines an operator-accessible area. Only qualified service technicians should access the processor, memory, power subsystem, and non-hot-plug areas of the baseboard.
  • Page 29 Power Subsystem The SGI 1450 server uses a redundant (2+1) power subsystem. To form a (2+1) redundant power subsystem, the subsystem parallels the DC output of one power supply module with one or two other modules. If one module ceases to function normally, the remaining modules provide power to the server system and the system continues to function properly.

  • Page 30: System Cooling

    System Cooling The SGI 1450 server uses up to six fans mounted in a fan board assembly in the middle of the chassis between the E-Bay and peripheral bays. The six fans are noted by “A” in Figure 1-7.

  • Page 31: Figure 1-7 Fan Board Assembly

    Three fans support any system configuration but without fan redundancy. The SGI 1450 server uses all six fans to form a redundant cooling system. If one of the six fans ceases to function normally, the remaining five fans adequately cool the system.

  • Page 32: Figure 1-8 Fan Leds

    1: Detailed Chassis Description An LED above each cooling fan displays the status of that fan. The LEDs for two fans are noted by “A” in Figure 1-8. The LED on the left indicates the status of the fan pointed to by the left arrow.

  • Page 33: E-Bay

    E-Bay patterns are disrupted within the system. To maintain correct airflow patterns within the chassis and to ensure that all components remain within specification under all system environmental conditions, fan hot-swap operations should not exceed two minutes in duration. E-Bay The E-Bay contains the baseboard with the following components: •...

  • Page 34: Chassis Front Controls And Indicators

    1: Detailed Chassis Description Chassis Front Controls and Indicators Figure 1-9 shows the front panel controls and indicators. Figure 1-9 Front Panel Controls and Indicators A. Power on/off button: If you press this button when the system is off, you turn on the power subsystem.

  • Page 35: Rear Panel I/O Ports And Features

    Rear Panel I/O Ports and Features Rear Panel I/O Ports and Features Figure 1-10 shows a detailed view of the rear panel I/O ports and features. Figure 1-10 Rear Panel I/O Ports and Features A. AC input power connector B. External SCSI connector ports C.
  • Page 36 1: Detailed Chassis Description I. Serial port 2 (COM1), 9-pin RS-232 connector J. IEEE 1284-compliant, 25-pin bi-directional parallel connector K. Serial port 1 (COM1), 9-pin RS-232 connector L. PS/2-compatible keyboard connector M. PS/2-compatible mouse connector N. HW push button O. PCI green and amber LEDs (inside the chassis) 007-4276-001...

  • Page 37: Removing And Installing System Components

    Chapter 2 Removing and Installing System Components This chapter provides information on removing and installing the following system components: • Front Cover • Top Cover • Memory Retention Bar • Baseboard • Power Subsystem • Cooling System • Hard Drive Bay •...

  • Page 38: Tools And Supplies Needed

    Warning: The total power requirement for the SGI 1450 server exceeds the 240 VA energy hazard limit that defines an operator-accessible area. Only qualified service technicians should access the processor, memory, power subsystem, and non hot-plug areas of the baseboard.

  • Page 39: Front Cover

    Operating the system for an extended period of time without the top and front covers in place can damage system parts. Caution: If the SGI 1450 server is turned on and has only three fans installed, make sure that you install the top cover within five minutes of removing it.

  • Page 40: Installing The Front Cover

    2: Removing and Installing System Components • Removing and installing media devices in the device bay • Removing and installing the fan board assembly • Removing and installing the power subsystem bay • Removing and installing a power supply module (front bezel only) To remove the front cover, follow these steps: Observe the safety and ESD precautions at the beginning of this chapter.

  • Page 41: Top Cover

    Top Cover Top Cover Follow the instructions in this section to remove and install the top cover. Removing the Top Cover To reach components inside the system, remove the top cover. Facing the front of the system, the top cover is on top and towards the back of the rack-mounted chassis. See Figure 1-1 on page 3 for the location of the top cover.

  • Page 42: Memory Retention Bar

    2: Removing and Installing System Components 4. Position the cover over the chassis so that the rows of tabs align with slots in the chassis. Slide the cover toward the front of the system until the tabs on the cover firmly engage in the chassis.

  • Page 43: Installing The Memory Retention Bar

    Baseboard Figure 2-1 Memory Retention Bar A. Captive screw B. Memory retention bar C. Clip at the rear of the chassis Installing the Memory Retention Bar Slip slots in the memory retention bar into the clip located at the rear of the chassis. The clip is noted by “C”...

  • Page 44: Removing The Baseboard

    2: Removing and Installing System Components Removing the Baseboard To remove the baseboard, follow these steps: Caution: The baseboard can be extremely sensitive to ESD and always requires careful handling. After removing it from the system, place it component-side UP on a non-conductive, static-free surface to prevent shorting out the battery leads.

  • Page 45: Figure 2-2 Power Supply Ac Bracket

    15. Remove the processors and any termination processors. See “Removing a Processor” on page 59. 16. Remove the processor retention guides. See “Removing Processor Retention Mechanisms” on page 59. 17. Remove any hot-plug PCI add-in boards. See the SGI 1450 Server User’s Guide. 007-4276-001...

  • Page 46: Figure 2-3 E-Bay Retaining Screws

    2: Removing and Installing System Components 18. Remove the plastic slot dividers. First, pull up on the end at the front of the E-Bay, and then slide the other end out of the back panel at the back of the E-Bay. 19.

  • Page 47: Installing The Baseboard

    Baseboard Installing the Baseboard To install the baseboard, follow these steps: Observe the safety and ESD precautions at the beginning of this chapter. 2. Pull the E-Bay away from the chassis. As you separate the E-Bay away, make sure that the power cord does not become wedged between the two parts of the chassis. 3.
  • Page 48 9. Install the plastic slot divider. First, slide one end into the back panel, and then press the other end into the chassis. 10. Install any hot-plug PCI add-in boards. See the SGI 1450 Server User’s Guide. 11. Install the processor retention guides. See “Installing Processor Retention Mechanisms”...

  • Page 49: Power Subsystem

    Follow the instructions in this section to remove and install a power supply module and the power subsystem bay. The SGI 1450 server can accommodate up to three power supply modules, each of which is enclosed in a power subsystem bay. The power subsystem bay contains a power distribution board (PDB).

  • Page 50: Figure 2-5 Power Subsystem

    2: Removing and Installing System Components Figure 2-5 Power Subsystem A. One of two screws on both sides of the chassis. When removing the power subsystem bay, remove these screws. B. Tab C. Handle for the power supply module D. Thumbscrew on the power supply module. When removing the power supply module, loosen this screw.

  • Page 51: Removing A Power Supply Module

    Power Subsystem Warning: Hazardous voltage, current, and energy levels are present inside the power subsystem. There are no user-serviceable parts inside it; servicing should be done by technically qualified personnel. Caution: Once you remove a power supply, make sure you replace it within two minutes.

  • Page 52: Removing The Power Subsystem Bay

    2: Removing and Installing System Components Remove the front bezel by gently pulling on the edge of the front bezel. The ball studs of the bezel will release. 2. Remove the non-functioning power supply according to the instructions in the preceding subsection.

  • Page 53: Installing The Power Subsystem Bay

    Power Subsystem 7. Un-route the AC distribution cable from the chassis retention features. 8. With the power supplies securely fastened, pull the power subsystem bay out of the chassis. 9. Before shipping the power subsystem bay for service, remove all power supplies. Installing the Power Subsystem Bay To install the power subsystem bay, follow these steps: Warning:...

  • Page 54: Cooling System

    2: Removing and Installing System Components Figure 2-6 Metal Plate Covering the Power Subsystem Bay 9. Tighten the two screws on each side of the chassis. One of the screws for each side is noted by “A” in Figure 2-5 on page 34. 10.

  • Page 55: Removing The Fan Board Assembly

    Cooling System Removing the Fan Board Assembly To remove the fan board assembly, follow these steps: Observe the safety and ESD precautions at the beginning of this chapter. 2. Turn off the system by pressing the power on/off button on the front panel, and unplug all AC power cords.

  • Page 56: Installing The Fan Board Assembly

    2: Removing and Installing System Components • One ribbon cable that connects to the baseboard. • One ribbon cable that connects to the front panel. • One power cable that connects to the power subsystem bay. Installing the Fan Board Assembly To install the fan board assembly, follow these steps: Observe the safety and ESD precautions at the beginning of this chapter.

  • Page 57: Figure 2-8 Fan Assembly Rotated Away From Its Base

    Cooling System Figure 2-8 Fan Assembly Rotated away From Its Base A. Upper portion of fan board assembly B. Fan board assembly base C. Plastic rug 4. Remove the plastic rug, which is noted by “C” in Figure 2-8. 5. Remove the screws that secure the fan board to the assembly. 6.

  • Page 58: Removing And Installing Individual Fans

    2: Removing and Installing System Components Removing and Installing Individual Fans To remove and install individual fans, follow these steps: Caution: Once you remove an individual fan, make sure you replace it within two minutes. If you cannot replace it, insert the original unit. When you have the replacement unit, repeat the replacement procedure.

  • Page 59: Removing The Hard Drive Bay

    39. 4. Disconnect the four cables attached to the hard drive bay. 5. Remove the SCSI hard drives. See “Removing a SCSI Hard Drive” in the SGI 1450 Server User’s Guide. 6. With a flat head screwdriver, press the two tabs inward on one side. Repeat this step for the two tabs on the other side.

  • Page 60: Installing The Hard Drive Bay

    3. Connect the four cables to the hard drive bay. 4. Install the SCSI hard drives. See “Installing a SCSI Hard Drive” in the SGI 1450 Server User’s Guide. 5. Install the fan board assembly. See “Installing the Fan Board Assembly” on page 40.

  • Page 61: Peripheral Devices

    The drives are secured to the media bay by a screw as shown in Figure 2-11. (Although Figure 2-11 shows a single 3.5-inch floppy disk drive, the SGI 1450 server is shipped with a 0.5-inch slim-line floppy and a 0.5-inch slim-line CD-ROM drive.)

  • Page 62: Installing A Drive In The Media Bay

    2: Removing and Installing System Components 3. Remove the front cover. See “Removing the Front Cover” on page 23. 4. Disconnect the power and signal cables from the back of the drive. 5. Remove and save the screw that secures the drive to the bay. The screw is noted by “A”...

  • Page 63: Scsi Requirements

    SCSI Requirements 7. Connect the power and signal cables to the drive. 8. Install the front cover. See “Installing the Front Cover” on page 24. SCSI Requirements All SCSI devices must not be terminated except the peripheral at the end of the SCSI cable.

  • Page 65: Removing And Installing Baseboard Components

    Chapter 3 Removing and Installing Baseboard Components This chapter provides information on removing and installing the following baseboard components: • Memory • Processors • Voltage Regulator Modules (VRMs) • Backup Battery • Add-in Boards • ICMB Card The removal and installation procedures described in this chapter assume that the baseboard components are readily accessible.

  • Page 66: Tools And Supplies Needed

    3: Removing and Installing Baseboard Components Tools and Supplies Needed The following tools and supplies allow you to remove and install all the system components covered in this chapter: • Phillips (cross-head) screwdriver (#1 and #2 bit). • Phillips (cross-head) screwdriver with a long blade (#1 and #2 bit). •...
  • Page 67 Pre-Installation Safety Precautions Caution: ESD can damage disk drives, boards, and other parts. We recommend that you do all procedures in this chapter only at an ESD-protected workstation. If one is not available, provide some ESD protection by wearing an antistatic wrist strap attached to chassis ground—any unpainted metal surface—on your system when handling parts.

  • Page 68: Baseboard Connector And Component Locations

    3: Removing and Installing Baseboard Components Baseboard Connector and Component Locations Figure 3-1 shows a detailed view of the baseboard connectors and components. Baseboard Connector and Component Locations Figure 3-1 A. Legacy Narrow SCSI B. Legacy Wide SCSI C. SMM Connector D.

  • Page 69: Memory

    Memory O. COM1, COM2 Connector P. Keyboard/Mouse Q. Main Power 1 R. Auxiliary Power S. Main Power 2 T. SMBus U. Front Panel V. IDE Connector W. Floppy Connector X. Configuration Jumpers Y. Ultra 160 SCSI A Z. Ultra 160 SCSI B AA.

  • Page 70: Figure 3-2 Memory Module Dimm Installation Sequence

    3: Removing and Installing Baseboard Components the ranges defined as memory holes using configuration registers). The system supports both base (conventional) and extended memory. • Base memory is located at addresses 00000h to 9FFFFh (the first 1 MB). • Extended memory begins at address 0100000h (1 MB) and extends to 3FFFFFFFFh (16 GB), which is the limit of supported addressable memory.

  • Page 71: Removing The Memory Module

    Memory X. One of sixteen DIMM sockets Y. One of four memory address data paths (MADP) Z. Memory expansion card connector (MECC) Removing the Memory Module The memory module is located on the baseboard as shown in Figure 3-1 on page 52. The DIMM locations are shown in Figure 3-2.

  • Page 72: Removing Dimms

    3: Removing and Installing Baseboard Components Removing DIMMs To remove DIMMs, follow these steps; Caution: Use extreme care when removing a DIMM. Too much pressure can damage the socket slot. Apply only enough pressure on the plastic ejector levers to release the DIMM. Observe the safety and ESD precautions at the beginning of this chapter.

  • Page 73: Processors

    Processors Figure 3-3 DIMM Orientation in a Memory Module Note: DIMM slots on the memory module must be installed only in certain configurations. See the beginning of this section for requirements. 3. Insert the bottom edge of the DIMM into the socket, and then press down firmly on the DIMM until it seats correctly.

  • Page 74: Figure 3-4 Processor Orientation And Components

    3: Removing and Installing Baseboard Components Caution: Reduce the risk of electrostatic discharge (ESD) damage to the processor by doing the following: (1) Touch the metal chassis before touching the processor or baseboard. Keep part of your body in contact with the metal chassis to dissipate the static charge while handling the processor.

  • Page 75: Removing A Processor

    Processors Removing a Processor See Figure 3-4 for the location of processor components. Observe the safety and ESD precautions at the beginning of this chapter and the additional cautions given in this section. 2. Remove the two screws that secure the handle to the processor. 3.

  • Page 76: Installing Processor Retention Mechanisms

    3: Removing and Installing Baseboard Components 3. With a long bladed screwdriver, remove the two screws at the base of the processor retention mechanism. 4. Remove the retention mechanism from the baseboard. Installing Processor Retention Mechanisms See Figure 3-4 for the location of processor components. Observe the safety and ESD precautions at the beginning of this chapter.

  • Page 77: Voltage Regulator Modules (Vrms)

    Voltage Regulator Modules (VRMs) 5. Attach the heatsink to the processor with five 6-32 X 3/8 screws, and tighten to 8-10 inch-pounds. Voltage Regulator Modules (VRMs) Follow the instructions in this section to remove and install a VRM. Up to seven VRMs provide power for processors. Table 3-1 shows the relationship between VRMs and processors.

  • Page 78: Removing A Vrm

    3: Removing and Installing Baseboard Components Processor/VRM Population Sequencing Table 3-2 If you have a processor in connector VRM in connector # 1, 2, and 3 1, 2, 3, and 4 Removing a VRM To decide which VRM you need to remove, see Figure 3-1 on page 52. Caution: You might damage the system if you install a VRM that is inappropriate for your system.

  • Page 79: Backup Battery

    Backup Battery 3. Carefully insert the VRM in the connector on the baseboard. Make sure you do not bend the connector pins. 4. Push down firmly on both ends of the VRM until the ejector levers of the connector snap into place, locking the VRM in the connector. 5.
  • Page 80 3: Removing and Installing Baseboard Components Warning: If the system has been running, any installed PCI add-in board on the baseboard will be hot. To avoid the possibility of a burn, be careful when removing or installing baseboard components, especially those that are located near processors. The following warning and translations are required by specific certifying agencies to be printed immediately adjacent to the procedure for removing the RTC.

  • Page 81: Add-In Boards

    Add-in Boards 3. Insert the tip of a small flat-head screwdriver or equivalent under the plastic tab on the snap-on plastic retainer. 4. Gently push down on the screwdriver to lift the battery. 5. Remove the battery from its socket. 6.

  • Page 82: Installing A 32-Bit, 33-Mhz Half-Length Pci Add-In Board

    3: Removing and Installing Baseboard Components Warning: If the system has been running, any installed PCI add-in board on the baseboard will be hot. To avoid the possibility of a burn, be careful when removing or installing baseboard components, especially those that are located near processors. Warning: The on/off button on the front panel does not turn off the system AC power.

  • Page 83: Removing A 64-Bit, 66/33-Mhz Hot-Plug Pci Add-In Board

    Add-in Boards Warning: The on/off button on the front panel does not turn off the system AC power. To remove power from the system, you must unplug the AC power cords from the wall outlet or the system. Caution: Do not overload the baseboard by installing add-in boards that draw excessive current.

  • Page 84: Figure 3-6 Front Hot-Plug Retention Mechanism

    3: Removing and Installing Baseboard Components Warning: If the system has been running, any installed PCI add-in board on the baseboard will be hot. To avoid the possibility of a burn, be careful when removing or installing baseboard components, especially those that are located near processors. Caution: Slot covers must be installed on all vacant expansion slots.

  • Page 85: Installing A 64-Bit, 66/33-Mhz Hot-Plug Pci Add-In Board

    Add-in Boards Observe the safety and ESD precautions at the beginning of this chapter. 2. Make sure that the slot is powered off. If the slot is powered on, turn the power to the slot off through the PCI hot-plug application on your system, or by pressing the HW push-button.

  • Page 86: Icmb Card

    3: Removing and Installing Baseboard Components Note: At this time, the Linux operating system does not support use of the PCI hot-plug (PHP) feature. If you are running Linux, your system must be turned off before installing or removing PCI boards. Windows 2000 requires drivers that are PHP-compatible in order to use the PHP feature.

  • Page 87: Installing An Icmb Card

    ICMB Card Establishing communication between servers using the ICMB card is a two-step process. First, install the ICMB card in each server. Then, make sure that the software required for the card is in place. Software for the ICMB card includes firmware on the card and software already included in the ISC software.

  • Page 88: Figure 3-8 Example Of An Icmb Card Attached To A Chassis

    3: Removing and Installing Baseboard Components Figure 3-8 Example of an ICMB Card Attached to a Chassis 4. Attach the internal cable to the internal connector on the ICMB card. The internal cable connection to the card is noted by “A” in Figure 3-9. Internal Cable Attached to the ICMB Card Figure 3-9 5.

  • Page 89: Removing An Icmb Card

    ICMB Card External Cable Attached to the Card Figure 3-10 Removing an ICMB Card To remove an ICMB card, follow these steps: Disconnect the internal and external cables from the card and the baseboard. 2. Remove the screw securing the card to the chassis. The screw is noted by “A” in Figure 3-8 on page 72.

  • Page 91: Solving Problems

    Chapter 4 Solving Problems This chapter helps you identify and solve problems that might occur while you are using the system. Resetting the System Table 4-1 shows the commands used to reset the system. Table 4-1 Resetting Commands To do this: Press: Clear system memory, restart POST, and reload the operating Reset button or <Ctrl+Alt+Del>...

  • Page 92: New Application Software

    4: Solving Problems that there are no conflicts (for example, two add-in boards sharing the same interrupt). • Are all DIMMs installed correctly? • Are all peripheral devices installed correctly? • If the system has a hard drive, is it properly formatted or configured? •...

  • Page 93: After The System Has Been Running Correctly

    After the System Has Been Running Correctly • If the problems persist, contact the software vendor's customer service representative. After the System Has Been Running Correctly Problems that occur after the system hardware and software have been running correctly often indicate equipment failure. Often the simple solutions for these problems, however, can cause additional problems.

  • Page 94: Power Light Does Not Light

    4: Solving Problems • No beep codes. • No characters appear on screen. • Characters on the screen appear distorted or incorrect. • System cooling fans do not rotate properly. • Diskette drive activity light does not light. • Hard drive activity light does not light. •...

  • Page 95: No Characters Appear On Screen

    Specific Problems and Corrective Actions No Characters Appear on Screen Check the following: • Is the keyboard working? Check to see that the “Num Lock” light is functioning. • Is the video monitor plugged in and turned on? Many modern video monitors shut down when inactive and may require a moment to warm up when activated.

  • Page 96: System Cooling Fans Do Not Rotate Properly

    Floppy” is set to Enabled. If you are using an add-in diskette controller, make sure that “Onboard Floppy” is set to Disabled. To run the SSU, see “Using the System Setup Utility” in the SGI 1450 Server User’s Guide. 007-4276-001...

  • Page 97: Hard Drive Activity Light Does Not Light

    Specific Problems and Corrective Actions If the problem persists, there may be a problem with the diskette drive, baseboard, or drive signal cable. Contact your service representative or authorized dealer. Hard Drive Activity Light Does Not Light If you installed one or more hard drives in your system, check the following: •...

  • Page 98: Error And Informational Messages

    4: Solving Problems • Verify that the baseboard jumpers are set correctly. See “Changing Jumper Settings” on page 133. • If other software runs correctly on the system, contact your vendor about the failing software. If the problem persists, contact the software vendor's customer service representative. Error and Informational Messages When you turn on the system, POST displays messages that provide information about the system.

  • Page 99: Table 4-3 Recovery Bios Port-80 Codes

    Error and Informational Messages Table 4-3 shows the recovery BIOS Port-80 codes. Table 4-3 Recovery BIOS Port-80 Codes Beeps Reason 1-1-1-1 There are no processors present in the system, or the processors are so incompatible that the system BIOS cannot be run (like mismatched cache voltages).

  • Page 100: Equipment Log

    4: Solving Problems Equipment Log Use the blank equipment log in Table 4-4 to record information about the system. Some of this information may be required when running the system setup utility (SSU). Table 4-4 Equipment Log Manufacturer Item Name Model Number Serial Number Date Installed...
  • Page 101 Equipment Log Equipment Log Table 4-4 (continued) Manufacturer Item Name Model Number Serial Number Date Installed 007-4276-001...

  • Page 103: Technical Reference

    This appendix provides a description of the rear panel I/O ports, the peripheral adapter board and connectors, and the baseboard connectors and jumpers. Internal Cables and Connectors Table A-1 describes all cables and connectors of the SGI 1450 server. Table A-1 SGI 1450 server Cables and Connectors...
  • Page 104 A: Technical Reference SGI 1450 server Cables and Connectors Table A-1 (continued) Type From Interconnect Description Serial Baseboard External interface 9-pin serial port connector Ethernet Baseboard External interface RJ45 connector port Internal wide Baseboard HDD backplane 68-pin solid core flat ribbon...
  • Page 105 Internal Cables and Connectors SGI 1450 server Cables and Connectors Table A-1 (continued) Type From Interconnect Description Slot 2 Baseboard Processor module 330-pin card edge connect Memory Baseboard Memory module 330-pin card edge connect DIMM Memory DIMM 168-pin card edge connect...

  • Page 106: Connectors Accessible To The User

    A: Technical Reference SGI 1450 server Cables and Connectors Table A-1 (continued) Type From Interconnect Description AC distribution 1 Power cord Power supply cage 3-pin PVC double insulated power cordage AC power External interface Recommend 3-pin SJT power distribution cord Connectors Accessible to the User This section describes the rear panel I/O ports.

  • Page 107: Parallel Port

    Connectors Accessible to the User The COM2 serial port can be used either as an emergency management port or as a normal serial port. Table A-3 shows the cable pinout assignments for the serial ports. Serial Ports Table A-3 Signal DCD (carrier detect) RXD (receive data) TXD (transmit data)

  • Page 108: Video Port

    A: Technical Reference Parallel Port Table A-4 (continued) Signal Signal Data bit 5 Data bit 6 Data bit 7 ACK_L (acknowledge) BUSY PE (paper end) SLCT (select) Video Port The video port interface is a standard VGA-compatible 15-pin connector. Onboard video is supplied by an ATI RAGE IIC VT4 video controller with 2 MB of onboard video SGRAM.

  • Page 109: Universal Serial Bus (Usb) Interface

    Connectors Accessible to the User Video Port Table A-5 (continued) Signal No connection DDCDAT HSYNC (horizontal sync) VSYNC (vertical sync) DDCCLK Universal Serial Bus (USB) Interface The baseboard provides two stacked USB ports (port 0 on top, port 1 on bottom). The built-in USB ports permit the direct connection of two USB peripherals without an external hub.

  • Page 110: Icmb Connectors

    A: Technical Reference ICMB Connectors The external Intelligent Chassis Management Bus (ICMB) provides external access to ICMB devices that are within the chassis. This allows you to externally access chassis management functions, alert logs, post-mortem data, and so on. It also provides a mechanism for chassis power control.

  • Page 111: Internal Sca-2 Hdd Connector

    Connectors Accessible to the User Ethernet Connector Table A-8 (continued) Signal NIC termination NIC termination Speed LED signal +3.3 V standby (for LED) Activity LED signal +3.3 V standby (for LED) Internal SCA-2 HDD Connector An SCA-2 connector is used on the primary side of the HDD backplane. The pinout is the same as SCA-1.
  • Page 112 A: Technical Reference Internal SCA-2 HDD Connector Table A-9 (continued) Signal Name Type Signal Name Type -DB(9) +DB(9) -DB(8) +DB(8) -I/O +I/O -REQ +REQ -C/D +C/D -SEL +SEL -MSG +MSG -RST +RST -ACK +ACK -BSY +BSY -ATN +ATN -DB(P) +DB(P) -DB(7) +DB(7) -DB(6)

  • Page 113: External Adaptec Ultra 160/M Scsi

    Connectors Accessible to the User Internal SCA-2 HDD Connector Table A-9 (continued) Signal Name Type Signal Name Type -DB(12) +DB(12) Mated 2 5 V ground 5 V charge 5 V ground Spindle sync Active LED out MTRON DLYD_START SCSI ID (0) SCSI ID (1) SCSI ID (2) SCSI ID (3)
  • Page 114 A: Technical Reference External Adaptec Ultra 160/m SCSI Table A-10 (continued) Signal Name Signal Name DP(4) DM(4) DP(5) DM(5) DP(6) DM(6) DP(7) DM(7) DAPLP DAPLM DIFFSENSE TERMPWR TERMPWR TERMPWR TERMPWR ATNP ATNM BSYP BSYM ACKP ACKM RSTP RSTM MSGP MSGM SELP SELM REQP...

  • Page 115: Ac Power Input

    Connectors Accessible to the User External Adaptec Ultra 160/m SCSI Table A-10 (continued) Signal Name Signal Name -DP(10) -DM(10) -DP(11) -DM(11) AC Power Input A single IEC320-C13 receptacle is provided at the rear of the server. Use an appropriately sized power cord and AC main. 007-4276-001...

  • Page 116: Peripheral Adapter Boards And Connectors

    A: Technical Reference Peripheral Adapter Boards and Connectors The peripheral adapter boards convert the 50-pin JAE and FFC signal interface connectors of the 0.5-inch slim line peripherals to a standard 40-pin IDE and 34-pin floppy cable pinouts. Two unique boards are required, one for the floppy and one for the CD-ROM.

  • Page 117: Table A-12 Cd-Rom Adapter Board Power Connector

    Peripheral Adapter Boards and Connectors CD-ROM Adapter Board 40 Position IDE Connector Table A-11 (continued) Signal Signal No connection No connection CS1P_L DS3P_L DHACT_L GROUND Table A-12 shows the cable pinout assignments for the CD-ROM adapter board power connector. Table A-12 CD-ROM Adapter Board Power Connector Signal +5 Power...
  • Page 118 A: Technical Reference CD-ROM JAE Connector Table A-14 (continued) Signal Signal RESET- DD10 DD11 DD12 DD13 DD14 DD15 DMARQ /DIOR DIOW- IORDY /DMACK INTRQ /IOCS16 /PDIAG /CS1FX /CS3FX /DASP +5 V +5 V +5 V +5 V +5 V CSEL RESERV RESERV 007-4276-001...

  • Page 119: Floppy Connectors

    Peripheral Adapter Boards and Connectors Floppy Connectors Table A-15 shows the cable pinout assignments for the 34-position floppy connector. Table A-15 34-Position Floppy Connector Pin-Out Signal Signal HD In/ HD Out/ Open FD_INDEX_L Drive select 0 Drive select 1 Motor on Direction select STEP Write data...

  • Page 120: Table A-16 Floppy Adapter Board Power Connector

    A: Technical Reference Table A-16 shows the cable pinout assignments for the floppy adapter board power connector. Floppy Adapter Board Power Connector Table A-16 Signal +5 power No connection Table A-17 shows the cable pinout assignments for the FFC connector. Table A-17 FFC connector Signal...

  • Page 121: Baseboard Connectors

    Baseboard Connectors Baseboard Connectors Figure A-1 shows connector locations on the baseboard. This section provides pin information about the baseboard connectors. Figure A-1 Detailed Diagram of Connector Locations 007-4276-001...

  • Page 122: Table A-18 Connector Description

    A: Technical Reference Table A-18 provides a description of baseboard connectors. Table A-18 Connector Description Item Connector Description Item Connector Description J1A1 Keyboard and Mouse J9F2 Jumper Block Connector J1B3 Internal USB J9G1 Jumper Block J2B1 VRM Connector #3 J9G2 Ultra 160 Wide SCSI Channel B Ultra 160 Wide SCSI...

  • Page 123: Power Distribution Board Interface Connectors (J9B1, J9D1, J9B2)

    Baseboard Connectors Connector Description Table A-18 (continued) Item Connector Description Item Connector Description J9E1 IDE Activity Input J1D2 ICMB Connector Connector J9E4 SMBus Connector J1D1 Video J9E5 IDE Connector J1C2 J9E6 Floppy Connector J1C1 J9E3 Front Panel Connector (Top to bottom) J8F1 IMB Connector...

  • Page 124: Table A-19 Main Power Connector A (J9B1)

    A: Technical Reference Table A-19 describes the main power connector A (J9B1). Table A-19 Main Power Connector A (J9B1) Current Carrying Signal Type Capability Description 12 V Power Power supply 12 V Ground Ground Ground return connection Ground Ground Ground return connection Ground Ground Ground return connection...

  • Page 125: Table A-20 Main Power Connector B (J9D1)

    Baseboard Connectors Table A-20 describes the main power connector B (J9D1). Table A-20 Main Power Connector B (J9D1) Signal Type Current Carrying Capability Description VCC3 Power Power supply 3.3 V VCC3 Power Power supply 3.3 V VCC3 Power Power supply 3.3 V VCC3 Power Power supply 3.3 V...

  • Page 126: Table A-21 Auxiliary Power Connector (J9B2)

    A: Technical Reference Main Power Connector B (J9D1) Table A-20 (continued) Signal Type Current Carrying Capability Description Ground Ground Ground return connection 12 V Power Power supply 12 V Table A-21 describes the auxiliary power connector. Table A-21 Auxiliary Power Connector (J9B2) Current Carrying Signal Type...

  • Page 127: Front Panel Interface (J9E3)

    Baseboard Connectors Front Panel Interface (J9E3) The front panel attaches to a 30-pin header on the baseboard. The header contains reset, NMI, sleep, and power control buttons, LED indicators, and an IPMB connection. The table below summarizes the front panel signal pins, including the signal mnemonic, name, and brief description.
  • Page 128 A: Technical Reference Front Panel Connector (J9E3) Table A-22 (continued) Signal Type Description PWR_FLT_LED* SYSTEM FAULT indicates that either a power fault or SCSI drive failure has occurred in the system. GROUND Ground GROUND is the power supply ground. SM_IMB_SDA In/Out I2C DATA is the data signal for the IPMB.

  • Page 129: Hot-Plug Pci Indicator Board Interface (J3D1)

    Baseboard Connectors Front Panel Connector (J9E3) Table A-22 (continued) Signal Type Description FAN_TACH(2) FAN_TACH signal is connected to the BMC to monitor the FAN speed. FAN_TACH(3) FAN_TACH signal is connected to the BMC to monitor the FAN speed. FAN_TACH(4) FAN_TACH signal is connected to the BMC to monitor the FAN speed.

  • Page 130: Table A-23 Hot-Plug Indicator Board Connector Pinout (J3D1)

    A: Technical Reference system to enable and initialize the PHP slot, the user momentarily presses the switch again. Note: At this time, the Linux operating system does not support use of the PCI hot-plug (PHP) feature. If you are running Linux, your system must be turned off before installing or removing PCI boards.

  • Page 131: Memory Module Interface (J6F1)

    Baseboard Connectors Hot-Plug Indicator Board Connector Pinout (J3D1) Table A-23 (continued) Connector Connector Contact Signal Name Contact Signal Name P64_B_AMB_LED<0> P64_B_SWITCH<1> P64_B_GRN_LED<1> P64_A_AMB_LED<1> P64_B_SWITCH<2> P64_A_GRN_LED<2> P64_A_AMB_LED<2> P64_B_SWITCH<3> P64_A_GRN_LED<3> P64_A_AMB_LED<3> Memory Module Interface (J6F1) Table A-24 describes the cable pinout assignments for the memory module interface. Table A-24 Memory Module Interface Pin**...
  • Page 132 A: Technical Reference Memory Module Interface Table A-24 (continued) Pin** Signal Signal Signal Signal A013 GND B013 CMD6 A096 B096 CMD96 A014 CMD18 B014 VCC3 A097 CMD112 B097 VCC3 A015 CMD5 B015 CMD21 A098 CMD113 B098 CMD98 A016 GND B016 CMD23 A099 B099 CMD99 A017 CMD8...
  • Page 133 Baseboard Connectors Memory Module Interface Table A-24 (continued) Pin** Signal Signal Signal Signal A037 GND B037 0_CS1 A120 CMD111 B120 VCC3 A038 0_CS2 B038 VCC3 A121 CMD127 B121 CKE_1 A039 0_CS3 B039 0_MCDOE* A122 B122 1_RAS A040 GND B040 MEMPRSNT A123 1_WE* B123 VCC3...
  • Page 134 A: Technical Reference Memory Module Interface Table A-24 (continued) Pin** Signal Signal Signal Signal A061 CMD56 B061 VCC3 A144 CMD73 B144 VCC3 A062 CMD62 B062 CMD63 A145 CMD89 B145 CMD72 A063 GND B063 CMD61 A146 B146 CMD88 A064 CMD44 B064 VCC3 A147 CMD76 B147 VCC3...

  • Page 135: Processor Module Connector (J7A1, J7B1, J7C1, J7D1)

    Baseboard Connectors Memory Module Interface Table A-24 (continued) Pin** Signal Signal Signal Signal A082 MAA6 B082 VCC3 A165 PIN_A165 B165 VCC A083 MAA7 B083 MAA8 A166 B166 NC *Signal active low. **Pins are numbered with respect to the module edge connector. Axx signals appear on the front (processor side) of the processor card.
  • Page 136 A: Technical Reference Processor Card Connector (J7A1, J7B1, J7C1, J7D1) Table A-25 (continued) Pin** Signal Signal Signal Signal A014 A20M* B014 VCCP A097 BCLK B097 VCCP A015 FERR* B015 STPCLK* A098 TEST_VSS B098 RESET* (pd) A016 GND B016 TCK A099 GND B099 FRCERR A017 IGNNE* B017 VCCP...
  • Page 137 Baseboard Connectors Processor Card Connector (J7A1, J7B1, J7C1, J7D1) Table A-25 (continued) Pin** Signal Signal Signal Signal A037 VSS B037 BPM1* A120 A10* B120 VCCL2 A038 DEP1* B038 VCCP A121 A5* B121 A8* A039 DEP3* B039 DEP2* A122 GND B122 A7* A040 GND B040 DEP4* A123 A9*...
  • Page 138 A: Technical Reference Processor Card Connector (J7A1, J7B1, J7C1, J7D1) Table A-25 (continued) Pin** Signal Signal Signal Signal A060 GND B060 D47* A143 GND B143 BR1* A061 D39* B061 VCCP A144 ADS* B144 VCCL2 A062 TEST_25 (pu)*** B062 D44* A145 AP0* B145 RSP* A063 GND B063 D36*...

  • Page 139: Processor Termination, Regulation, And Power

    Baseboard Connectors Processor Card Connector (J7A1, J7B1, J7C1, J7D1) Table A-25 (continued) Pin** Signal Signal Signal Signal A082 TEST_VTT (pu) B082 VCCP A165 PWR_EN0 B165 RESERVED (nc) A083 RESERVED (nc) B083 RESERVED (nc) * Signal is active low. ** Pins are numbered with respect to the module edge connector. Axx signals appear on the front (processor side) of the processor card.
  • Page 140 A: Technical Reference Processor VRM Connectors (J2A2, J2B1, J2C1) Table A-26 (continued) Signal Type* P12VIN3 POWER P1SHARE VID0 VID2 VID4 VCCP1 POWER VSS1 POWER VCCP2 POWER VSS2 POWER VCCP3 POWER VSS3 POWER VCCP4 POWER VSS4 POWER VCCP5 POWER VSS5 POWER VCCP6 POWER P5VIN4...

  • Page 141: Termination Card

    Baseboard Connectors Processor VRM Connectors (J2A2, J2B1, J2C1) Table A-26 (continued) Signal Type* PWRGOOD VSS6 POWER VCCP7 POWER VSS7 POWER VCCP8 POWER VSS8 POWER VCCP9 POWER VSS9 POWER VCCP10 POWER VSS10 POWER VCCP11 POWER VSS11 POWER *Type (in/out) is from the perspective of the baseboard. Termination Card You must install a termination card in any vacant processor card slot to ensure reliable system operation.

  • Page 142: Table A-27 Server Monitor Module Connector Pinout

    A: Technical Reference On the baseboard, pins 1, 9, 15, and 17 are connected to SMI_L, NMI, SECURE_MODE, and CHASSIS_INTRUSION. Some server systems do not monitor these signals. Note: The type of connector (in, out, in/out, power, ground) indicated in Table A-27 is described from the perspective of the baseboard.

  • Page 143: Sm Bus Connector (J9E4)

    Baseboard Connectors Server Monitor Module Connector Pinout Table A-27 (continued) Pin Signal Type Description-Implementation Reserved Reserved pin: NC on baseboard Reserved Reserved pin: NC on baseboard GROUND Ground Ground Reserved Reserved pin: NC on baseboard Reserved Reserved pin: NC on baseboard Reserved Reserved pin: NC on baseboard Reserved...

  • Page 144: Auxiliary I C Connector (J9E4)

    A: Technical Reference provides a mechanism for chassis power control. As an option, you can configure a server with an ICMB adapter board to provide two SEMCONN 6-pin connectors for daisy-chained cabling. Table A-29 shows the cable pinout assignments for the ICMB connector.

  • Page 145: Table A-31 Processor Fan Connector #1 (J3C1)

    Baseboard Connectors The baseboard only supports monitoring a total of eight tachometer fan inputs. The front panel connector provides connections to all eight tachometer fan inputs. The tachometer signals from these four processor fan connectors are connected to the same tachometer fan signals FAN_TACH(4), FAN_TACH(5), FAN_TACH(6), and FAN_TACH(7) provided on the front panel connector J9E3.

  • Page 146: Internal Disk Drive Led Connection

    A: Technical Reference Table A-33 describe the processor fan connector #3 (J4A1). Table A-33 Processor Fan Connector #3 (J4A1) Signal Type Description Ground Power GROUND is the power supply ground Power Power supply 12 V Fan Tach FAN_TACH signal is connected to the BMC to monitor the FAN speed Table A-34 describe the processor fan connector #4 (J4C1).

  • Page 147: Baseboard Jumpers

    Baseboard Jumpers Baseboard Jumpers One 15-pin, one 11-pin, and one 3-pin single inline header provide a total of eight 3-pin jumper blocks that control various configuration options. The jumper locations are shown in Figure A-2. The shaded areas show default jumper placement for each configurable option.

  • Page 148: Table A-36 Configuration Jumper Settings

    A: Technical Reference Table A-36 identifies jumpers JP1, JP2, JP3, and JP4. Table A-36 Configuration Jumper Settings Callout Name State Location BMC boot block write Disable 13 - 14 Enable Enable 14 - 15 BIOS recovery boot Disable 9 - 10 Enable 10 - 11 Password clear...

  • Page 149: Changing Jumper Settings

    Changing Jumper Settings Changing Jumper Settings Follow the instructions in this section to change the settings for the CMOS clear jumper (JP4), the password clear jumper (JP3), and the recovery boot jumper (JP2). Observe the following safety and ESD precautions before changing jumper settings: Caution: ESD can damage disk drives, boards, and other parts.
  • Page 150 A: Technical Reference There are two methods to restore the default values. Method 1 Hold down the system's reset button down for five seconds. 2. While continuing to hold down the system's reset button, press the power button. 3. Release both the reset and power buttons at the same time. Method 2 Observe the safety and ESD precautions at the beginning of this section.

  • Page 151: Password Clear Jumper

    13. If the baseboard is installed in a system, reinstall the access covers, connect the power cords, and turn on the system for the change to take effect. 14. Run BIOS Setup or the SSU to verify the correct settings. See Chapter 3 in the SGI 1450 Server User’s Guide.

  • Page 152: Recovery Boot Jumper

    A: Technical Reference Recovery Boot Jumper The jumper at pins 9, 10, and 11 controls whether the system attempts to boot using the BIOS programmed in flash memory. Follow these steps to disable recovery booting: Observe the safety and ESD precautions at the beginning of this section. 2.

  • Page 153: Interrupts

    13. After running the special recovery mode, run the SSU to specify a new password. See Chapter 3 in the SGI 1450 Server User’s Guide. Interrupts Table A-39 recommends the logical interrupt mapping of interrupt sources; it reflects a typical configuration, but a user can change these interrupts.

  • Page 154: Video Modes

    A: Technical Reference Interrupt Definitions Table A-39 (continued) ISA Interrupt Description IRQ6 Floppy disk IRQ7 Parallel port IRQ8_L Active low RTC interrupt IRQ9 IRQ10 IRQ11 IRQ12 Mouse interrupt IRQ14 Compatibility IDE interrupt from primary channel IDE devices 0 and 1 IRQ15 Reserved System Management Interrupt.
  • Page 155 Video Modes Standard VGA Modes Table A-40 (continued) Resolution Refresh Rate (Hz) Colors 1600x1200 640x480 800x600 1024x768 1152x864 1280x1024 1600x1200 640x480 16.7M 800x600 16.7M 007-4276-001...

  • Page 157: Physical Environment Specifications

    Appendix B Physical Environment Specifications Table B-1 details the environmental specifications for the SGI 1450 server. Table B-1 Environmental Specifications Temperature: Non-operating -40° to 70 °C (-104° to 158 °F) Operating 5° to 35 °C (41° to 95 °F) Altitude 5,000 ft.

  • Page 159: Index

    Index AC power, LED state status fan LED state status add-in board installing 32-bit, 33 MHz half-length PCI board installing 64-bit, 66/33 MHz hot-plug PCI board hard drive backplane removing 32-bit, 33 MHz half-length PCI board boardset removing 64-bit, 66/33 MHz hot-plug PCI board requirements hard drive, LED state status address...
  • Page 160 Index memory retention bar power subsystem bay power supply module peripheral adapter boards processor processor processor handles installing processor heatsink installing handles processor retention mechanism installing heatsink top cover installing retention mechanism VRMs removing interrupt, mapping removing retention mechanism termination card jumpers changing settings removing...
  • Page 161 Index SCSI controllers optional external connector Technical Publications Library, obtaining SGI documentation voltage regulator modules installing removing VRM/processor population sequencing 007-4276-001...

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