Sun Microsystems SPARCstation 5 Service Manual
SPARCstation 5 Service Manual
Sun Microsystems Computer Company
A Sun Microsystems, Inc. Business
901 San Antonio Road Palo Alto, CA 94303-4900 USA
650 960-1300
fax 650 969-9131
Part No.: 801-6396-11
Revision A, August 1994
1994 Sun Microsystems,Inc.,901SanAntonioRoad,PaloAlto,California94303-4900U.S.A.
All rights reserved.
This productordocumentisprotectedbycopyrightanddistributedunderlicensesrestrictingitsuse,copying,distribution,anddecompilation.
No part of this productordocumentmaybereproducedinanyformbyanymeanswithoutpriorwrittenauthorizationofSunanditslicensors,
if any.
Portions of this productmaybederivedfromtheUNIX®system,licensedfromNovell,Inc.,andfromtheBerkeley4.3BSDsystem,licensed
fromtheUniversityofCalifornia.UNIXisaregisteredtrademarkintheUnitedStatesandinothercountriesandisexclusivelylicensedby
X/Open Company Ltd. Third-partysoftware,includingfonttechnologyinthisproduct,isprotectedbycopyrightandlicensedfrom Sun’s
suppliers. RESTRICTED RIGHTS: Use, duplication, or disclosurebytheU.S.GovernmentissubjecttorestrictionsofFAR 52.227-14(g)(2)(6/87)
and FAR52.227-19(6/87),orDFAR252.227-7015(b)(6/95)andDFAR 227.7202-3(a).
Sun, Sun Microsystems,theSunlogo,andSolarisaretrademarksorregisteredtrademarksofSunMicrosystems, Inc. in the United States and in
other countries. All SPARC trademarks are used under licenseandaretrademarksorregisteredtrademarksofSPARCInternational,Inc.inthe
United States and in other countries. ProductsbearingSPARC trademarks arebaseduponanarchitecturedevelopedbySunMicrosystems,Inc.
The OPEN LOOK® and Sun™ Graphical User Interfaces weredevelopedbySunMicrosystems,Inc.foritsusersandlicensees.Sun
acknowledges the pioneering effortsofXeroxCorporationinresearchinganddevelopingtheconceptofvisualorgraphicaluserinterfacesfor
the computer industry. Sun holds a nonexclusive licensefromXeroxtotheXeroxGraphicalUserInterface,whichlicensealsocoversSun’s
licensees who implement OPEN LOOK GUIs and otherwise comply with Sun’s writtenlicenseagreements.
THIS PUBLICATIONISPROVIDED“ASIS”WITHOUTWARRANTYOFANYKIND,EITHEREXPRESSORIMPLIED,INCLUDING,BUT
NOT LIMITED TO,THEIMPLIEDWARRANTIES OF MERCHANTABILITY,FITNESSFORAPARTICULAR PURPOSE, OR NONINFRINGEMENT.
Copyright 1994 Sun Microsystems,Inc.,901SanAntonioRoad,PaloAlto,Californie94303-4900U.S.A.Tousdroitsréservés.
Ce produitoudocumentestprotégéparuncopyrightetdistribuéavecdeslicencesquienrestreignentl’utilisation,lacopieetladécompilation.
Aucune partie de ce produitoudesadocumentationassociéenepeutêtrereproduitesousaucuneforme,parquelquemoyenquecesoit,sans
l’autorisation préalable et écrite de Sun et desesbailleursdelicence,s’ilyena.
Des parties de ce produitpourrontêtrederivéesdusystèmeUNIX®licenciéparNovell,Inc.etdusystèmeBerkeley4.3BSDlicenciépar
l’Université de Californie. UNIX est une marqueenregistréeauxEtats-Unisetdansd’autrespays,etlicenciéeexclusivementparX/Open
Company Ltd. Le logiciel détenu par des tiers, et quicomprendlatechnologierelativeauxpolicesdecaractères,estprotégéparuncopyrightet
licencié par des fournisseurs de Sun.
Sun, Sun Microsystems,lelogoSun,etSolarissontdesmarquesdéposéesouenregistréesdeSunMicrosystems,Inc.auxEtats-Unisetdans
d’autrespays.Toutes les marquesSPARC, utilisées sous licence, sont des marquesdéposéesouenregistréesdeSPARCInternational,Inc.aux
Etats-Unis et dans d’autrespays.LesproduitsportantlesmarquesSPARCsontbaséssurunearchitecturedéveloppéeparSunMicrosystems,
Inc.
Les utilisateurs d’interfaces graphiques OPEN LOOK® et Sun™ont étédéveloppésdeSunMicrosystems,Inc.poursesutilisateursetlicenciés.
Sun reconnaîtleseffortsdepionniersdeXeroxCorporationpourlarecherche et le développement du concept des interfaces d’utilisation
visuelle ou graphique pour l’industrie de l’informatique. Sun détientunelicencenonexclusivedeXeroxsurl’interfaced’utilisationgraphique,
cette licence couvrant aussi les licenciés deSun quimettentenplacelesutilisateursd’interfacesgraphiquesOPENLOOKetquienoutrese
conforment aux licences écrites de Sun.
CETTE PUBLICATIONESTFOURNIE"ENL’ETAT"SANSGARANTIED’AUCUNESORTE, NI EXPRESSENIIMPLICITE,YCOMPRIS,ET
SANS QUE CETTE LISTE NE SOIT LIMITATIVE,DESGARANTIESCONCERNANTLAVALEURMARCHANDE,L’APTITUDE DES
PRODUITS A REPONDRE A UNE UTILISATIONPARTICULIERE OU LE FAITQU’ILSNESOIENTPASCONTREFAISANTSDEPRODUITS
DE TIERS.
Please
Recycle
Contents
1. Product Description 1-1
1.1 Standard Features 1-1
1.1.1 Subassemblies, Boards, and Components 1-2
1.1.2 Interior View 1-2
1.1.3 Rear View of SPARCstation 5 System 1-3
1.2 Internal Options 1-4
1.3 External Options 1-5
2. Troubleshooting Overview 2-1
2.1 Factory-Defined Boot Mode 2-1
2.2 After Power Is Switched On 2-4
2.3 Diagnostic Tools and When to Use Them 2-7
2.4 Power-On Self-Test 2-7
2.5 FORTH-Based PROM Diagnostics 2-8
2.6 FORTH Monitor 2-11
2.7 SunDiag System Exerciser 2-11
2.8 SunDiagnostic Executive 2-11
3. Power-On Self-Test (POST) 3-1
3.1 Power-On Self-Test (POST) 3-1
3.2 Normal Mode 3-4
Contents iii
3.3 Full Diagnostic Mode 3-4
3.4 Abbreviated Diagnostic Mode 3-5
3.4.1 Setting Up a tip Connection to Another System 3-5
3.5 Tests the POST Runs 3-6
3.6 POST Error Messages 3-8
3.7 Status Lights (LEDs) and Indicators 3-8
4. Troubleshooting Procedures 4-1
4.1 No Video Output on the System Monitor 4-2
4.2 Power-On Does Not Succeed 4-2
4.2.1 Power Supply Test 4-3
4.2.2 System Board Test 4-5
4.3 Disk Drive Errors 4-6
4.3.1 Verifying the Built-In SCSI Controller 4-6
4.4 Determining Faulty DSIMM Locations 4-7
5. Safety and Tools Requirements 5-1
5.1 Safety Requirements 5-1
5.2 Symbols 5-2
5.3 System Precautions 5-3
5.4 Tools Required 5-4
5.5 Electrostatic Discharge (ESD) Precautions 5-4
6. Power On and Off 6-1
6.1 Powering Off the System 6-1
6.1.1 When the System Is Working Normally 6-1
6.1.2 When the System Does Not Respond Normally 6-2
6.2 Powering On the System 6-4
7. Internal Access 7-1
7.1 Removing the Cover 7-1
iv SPARCstation 5 Service Manual • August 1994
7.2 Attaching the Wrist Strap 7-3
7.3 Replacing the Cover 7-4
8. Major Subassemblies 8-1
8.1 Power Supply 8-1
8.1.1 Removing the Power Supply 8-1
8.1.2 Replacing the Power Supply 8-3
8.2 Power LED 8-4
8.2.1 Removing the Power LED 8-4
8.2.2 Replacing the Power LED 8-5
8.3 Internal Speaker 8-7
8.3.1 Removing the Internal Speaker 8-7
8.3.2 Replacing the Internal Speaker 8-10
8.4 SCSI Backplane 8-11
8.4.1 Removing the SCSI Backplane 8-11
8.4.2 Replacing the SCSI Backplane 8-13
9. Storage Devices 9-1
9.1 Hard Disk Drive 9-1
9.1.1 Removing a Hard Disk Drive 9-2
9.1.2 Replacing a Hard Disk Drive 9-3
9.2 CD-ROM Drive 9-5
9.2.1 Removing the CD-ROM Drive 9-5
9.2.2 Replacing the CD-ROM Drive 9-6
9.3 Diskette Drive 9-8
9.3.1 Removing the Diskette Drive 9-9
9.3.2 Replacing the Diskette Drive 9-12
9.4 Internal SCSI Data Cable 9-15
9.4.1 Removing the Internal SCSI Cable 9-15
9.4.2 Replacing the Internal SCSI Data Cable 9-17
9.5 DC Power Harness 9-20
Contents v
9.5.1 Removing the DC Power Harness 9-20
9.5.2 Replacing the DC Power Harness 9-23
9.6 Diskette Data Cable 9-26
9.6.1 Removing the Diskette Data Cable 9-26
9.6.2 Replacing the Diskette Data Cable 9-27
9.7 CD-ROM Audio Cable 9-28
9.7.1 Removing the CD-ROM Audio Cable 9-28
9.7.2 Replacing the CD-ROM Audio Cable 9-29
10. System Board Overview 10-1
10.1 Damage Prevention 10-1
10.2 Handling System Boards and Assemblies 10-1
10.3 System Board Layout 10-2
10.4 Replaceable System Board Components 10-3
11. System Board and Component Replacement 11-1
11.1 SBus Cards 11-1
11.1.1 Removing an SBus Card 11-2
11.1.2 Replacing an SBus Card 11-5
11.2 S24 Frame Buffer Card 11-7
11.2.1 Removing an S24 Frame Buffer Card 11-8
11.2.2 Replacing an S24 Frame Buffer Card 11-10
11.3 DSIMMs 11-12
11.3.1 Removing a DSIMM 11-13
11.3.2 Replacing a DSIMM 11-15
11.4 System Board 11-17
11.4.1 Removing the System Board 11-17
11.4.2 Replacing the System Board 11-19
11.4.3 Setting Jumpers 11-21
11.5 NVRAM 11-23
11.5.1 Removing the NVRAM Chip 11-23
vi SPARCstation 5 Service Manual • August 1994
11.5.2 Replacing the NVRAM Chip 11-24
12. Illustrated Parts Breakdown 12-1
12.1 Illustrations of Selected CRUs 12-1
12.2 Replacement Parts List 12-4
A. System Specifications A-1
A.1 Physical Specifications A-1
A.2 Input Power Requirements A-2
A.3 Environmental Requirements A-2
B. SPARCstation 5 Input/Output Connectors B-1
B.1 SCSI Connector (External) B-1
B.2 Parallel Port Micro-D Connector B-2
B.3 Attachment Unit Interface (AUI) Micro-D Connector B-3
B.4 Twisted-Pair Ethernet Connector B-4
B.5 Serial Connector Ports A and B B-5
B.6 Keyboard/Mouse Connector B-6
B.7 Audio Ports B-6
B.7.1 Headphone Connector B-7
B.7.2 Audio Line-out Connector B-7
B.7.3 Audio Line-in Connector B-8
B.7.4 Microphone Connector B-8
B.8 13W3 Video Connector B-8
C. SCSI Targeting C-1
D. FORTH Diagnostics D-1
D.1 Running the FORTH Diagnostics D-1
D.1.1 test <alias name>, test <device path> D-3
D.1.2 test-all D-4
D.1.3 watch-clock D-4
Contents vii
D.1.4 watch-net, watch-aui, watch-tpe, and watch-net-all D-4
D.1.5 probe-scsi, probe-scsi-all D-7
D.1.6 module-info D-7
D.1.7 test-memory D-8
D.2 Returning to the Old-Style Sunmon Compatibility Mode Prompt D-8
Glossary Glossary-1
viii SPARCstation 5 Service Manual • August 1994
Figures
FIGURE 1-1 Basic SPARCstation 5 System 1-2
FIGURE 1-2 Interior View of SPARCstation 5 System 1-3
FIGURE 1-3 Rear View of SPARCstation 5 System 1-4
FIGURE 2-1 Factory-Defined Boot Sequence—POST Phase Settings and Tests 2-2
FIGURE 2-2 Factory-Defined Boot Sequence—OpenBoot PROM Phase Settings and Tests 2-3
FIGURE 3-1 Arrangement of Sun Type-5 Keyboard Diagnostic LEDs 3-2
FIGURE 3-2 Sun Type-4 Keyboard 3-2
FIGURE 3-3 Sun Compact 1 Keyboard 3-3
FIGURE 3-4 SPARCstation System Banner 3-4
FIGURE 3-5 Location of System Power LED 3-8
FIGURE 4-1 Power Supply Connector 4-4
FIGURE 4-2 DSIMM Slot Locations 4-8
FIGURE 7-1 Removing the Rear Panel Cover Screws 7-2
FIGURE 7-2 Removing the Cover 7-3
FIGURE 7-3 Grounding the Wrist Strap to the Power Supply 7-4
FIGURE 7-4 Replacing the Cover 7-5
FIGURE 7-5 Securing the System Unit Cover 7-6
FIGURE 8-1 Removing the Power Supply 8-2
FIGURE 8-2 Connecting the DC Power Harness to the Power Supply 8-3
Figures ix
FIGURE 8-3 Power LED and In-line Connector 8-5
FIGURE 8-4 Positioning the LED Cable 8-6
FIGURE 8-5 Removing the Speaker Cover 8-8
FIGURE 8-6 Removing the Speaker 8-9
FIGURE 8-7 Speaker Connections 8-10
FIGURE 8-8 Removing the SCSI Backplane 8-12
FIGURE 9-1 Drive Locations 9-2
FIGURE 9-2 Removing a Hard Disk Drive 9-3
FIGURE 9-3 Replacing a Disk Drive 9-5
FIGURE 9-4 Removing the CD-ROM Drive 9-6
FIGURE 9-5 Jumper Settings for SPARCstation 5 CD-ROM Drive 9-7
FIGURE 9-6 Replacing the CD-ROM Drive 9-8
FIGURE 9-7 Diskette Drive Location 9-9
FIGURE 9-8 Removing the CD-ROM Filler Panel 9-10
FIGURE 9-9 Disengaging the Diskette Drive 9-11
FIGURE 9-10 Removing the Diskette Drive 9-12
FIGURE 9-11 Diskette Drive Switch and Grommets 9-13
FIGURE 9-12 Replacing the Diskette Drive 9-14
FIGURE 9-13 System Board Cable Connections 9-16
FIGURE 9-14 Rear Panel Captive Screws 9-16
FIGURE 9-15 Removing the System Board 9-17
FIGURE 9-16 Internal Cable Routing 9-18
FIGURE 9-17 Replacing the System Board 9-19
FIGURE 9-18 Backpanel Captive Screws 9-19
FIGURE 9-19 System Board Cable Connections 9-21
FIGURE 9-20 1 Panel Captive Screws 9-21
FIGURE 9-21 Removing the System Board 9-22
FIGURE 9-22 Internal Cable Routing 9-23
x SPARCstation 5 Service Manual • August 1994
FIGURE 9-23 Replacing the System Board 9-24
FIGURE 9-24 Backpanel Captive Screws 9-25
FIGURE 9-25 System Board Cable Routing 9-27
FIGURE 9-26 Audio Connector on the CD-ROM Drive 9-28
FIGURE 9-27 CD-ROM Audio Connector on the System Board 9-29
FIGURE 10-1 SPARCstation 5 System Board 10-2
FIGURE 11-1 SBus Slot Locations 11-1
FIGURE 11-2 Opening the SBus Card Retainers 11-2
FIGURE 11-3 Removing the Extractor From the SBus Card 11-3
FIGURE 11-4 Installing the SBus Card Extractor 11-3
FIGURE 11-5 Removing a Single-Width SBus Card 11-4
FIGURE 11-6 Removing a Double-Width SBus Card 11-4
FIGURE 11-7 Inserting the SBus Card 11-6
FIGURE 11-8 Closing the SBus Card Retainers 11-7
FIGURE 11-9 AFX Bus Slot 11-8
FIGURE 11-10 Opening the Card Retainers 11-9
FIGURE 11-11 Removing an S24 Frame Buffer Card 11-10
FIGURE 11-12 Inserting the S24 Frame Buffer Card 11-11
FIGURE 11-13 Closing the Card Retainers 11-12
FIGURE 11-14 DSIMM Slot Locations on the System Board 11-14
FIGURE 11-15 Ejecting a DSIMM 11-14
FIGURE 11-16 Orienting a DSIMM 11-15
FIGURE 11-17 Installing a DSIMM 11-16
FIGURE 11-18 System Board Cable Connections 11-18
FIGURE 11-19 System Board Captive Screws 11-18
FIGURE 11-20 Removing the System Board 11-19
FIGURE 11-21 Installing the System Board 11-20
FIGURE 11-22 System Board Captive Screws 11-20
Figures xi
FIGURE 11-23 Setting the Serial Port Jumpers 11-22
FIGURE 11-24 Locating the NVRAM 11-23
FIGURE 12-1 Selected CRUs—System Unit 12-1
FIGURE 12-2 Standard External Cables 12-2
FIGURE 12-3 Optional External Cables 12-3
FIGURE 12-4 Microphone and Cable 12-3
FIGURE B-1 External SCSI Connector B-1
FIGURE B-2 Parallel Port Micro-D Connector B-2
FIGURE B-3 Attachment Unit Interface (AUI) Micro-D Connector B-3
FIGURE B-4 Twisted-Pair Ethernet Connector B-4
FIGURE B-5 Serial Connector B-5
FIGURE B-6 Keyboard/Mouse Connector B-6
FIGURE B-7 SPARCstation 5 Audio Ports B-6
FIGURE B-8 Headphone Connector B-7
FIGURE B-9 Audio Line-out Connector B-7
FIGURE B-10 Audio Line-in Connector B-8
FIGURE B-11 Microphone Connector B-8
FIGURE B-12 SPARCstation 5 13W3 Video Connector B-9
xii SPARCstation 5 Service Manual • August 1994
Tables
TABLE 1-1 Internal Options 1-4
TABLE 1-2 Selected External SCSI Peripheral Options 1-5
TABLE 2-1 NVRAM Parameters Used During POST and Boot Sequence 2-5
TABLE 2-2 Summary of Autoboot and Diagnostic Switch Parameter Settings 2-6
TABLE 2-3 Diagnostic Tools 2-7
TABLE 2-4 Selected FORTH Diagnostic Tests 2-8
TABLE 3-1 Interpreting the Keyboard Diagnostic LEDs 3-3
TABLE 4-1 Troubleshooting Tips 4-1
TABLE 4-2 Power Supply Connector Pin Assignments 4-4
TABLE 4-3 Troubleshooting Disk Drive Errors 4-6
TABLE 4-4 Physical Memory Address Ranges for Slots 0 Through 7 4-8
TABLE 5-1 Safety Precautions 5-2
TABLE 12-1 Part Number List—Customer Replaceable Units 12-4
TABLE 12-2 Part Number List—Miscellaneous Items 12-5
TABLE A-1 Physical Specifications A-1
TABLE A-2 Input Power Requirements and Power Dissipation A-2
TABLE A-3 Environmental Requirements A-2
TABLE B-1 Pinout Signals for External SCSI Connector B-1
TABLE B-2 Pinout for Parallel Port Micro-D Connector B-2
TABLE B-3 Pinout for Attachment Unit Interface (AUI) Micro-D Connector B-3
Tables xiii
TABLE B-4 Pinout for Twisted-Pair Ethernet Connector B-4
TABLE B-5 Pinout for Serial Connector Ports A and B B-5
TABLE B-6 Pinout for Keyboard/Mouse Connector B-6
TABLE B-7 Signals for the SPARCstation 5 Audio Ports B-7
TABLE B-8 13W3 Video Connector Pin Assignments B-9
TABLE C-1 SCSI Targeting—Solaris 1.x (SunOS 4.x) Operating Systems C-1
TABLE C-2 SCSI Targeting—Solaris 2.x (SunOS 5.x) Operating Systems C-2
xiv SPARCstation 5 Service Manual • August 1994
Preface
This service manual describes how to troubleshoot problems and replace parts in the
SPARCstation™ 5 computer system. Technicians, advanced computer system endusers (with experience replacing hardware and troubleshooting), system
administrators, or qualified service providers should use this book.
Document Organization
This book is divided into seven parts. A table, at the beginning of each part, lists the
chapters, sections, and page numbers.
■ Part 1, “System Information,” provides an overview of the SPARCstation 5
standard features, internal options, and external options.
■ Part 2, “Troubleshooting,” provides a troubleshooting overview, describes how to
run and troubleshoot errors displayed during the Power-On Self-Test (POST), and
presents symptoms and corrective actions.
■ Part 3, “Preparing for Service,” explains safety requirements, symbols used in this
book, tools required, and how to shut down, power off, and power on the system.
■ Part 4, “Subassembly Removal and Replacement,” describes how to open and
close the system, attach and remove a wrist strap, and remove and replace
subassemblies.
■ Part 5, “System Board,” provides an overview of the system board, describes how
to remove and replace the system board and replaceable parts and components on
the system board.
■ Part 6, “Illustrated Parts Breakdown,” provides illustrations of the major
replaceable parts and lists part numbers.
xv
■ Part 7, “Appendixes, Glossary, Index,” provides physical, electrical, and
environmental specifications, connector pinouts and signal descriptions,
information on SCSI targeting, a glossary of technical terms, and an index.
Related Documentation
The following manuals describe software troubleshooting procedures:
■ OpenBoot Command Reference
■ SunDiag User’s Guide
■ System administration manual for the computer system
■ Operating system documentation
Typographic Conventions
The following table describes the type changes and symbols used in this book.
TABLEP-1 Typographic Conventions
Typeface or
Symbol Meaning Example
AaBbCc123 The names of commands, files,
and directories; on-screen
computer output
AaBbCc123 What you type, contrasted with
on-screen computer output
AaBbCc123 Command-line placeholder:
replace with a real name or value
AaBbCc123 Book titles, new words or terms,
or words to be emphasized
Code samples are included in boxes and may display the following:
xvi SPARCstation 5 Service Manual • August 1994
Edit your .login file.
Use ls -a to list all files.
system% You have mail.
system% suPassword:
To delete a file, type rm filename.
Read Chapter 6 in Owner’s Guide.
These are called class options.
You must be root to do this.
TABLEP-1 Typographic Conventions
Typeface or
Symbol Meaning Example
% UNIX C shell prompt system%
$ UNIX Bourne and Korn shell
$
prompt
# Superuser prompt, all shells #
Preface xvii
xviii SPARCstation 5 Service Manual • August 1994
CHAPTER
1
Product Description
This chapter presents a brief overview of the major components of the
SPARCstation 5 system. Please acquaint yourself with the overview before servicing
and maintaining the hardware for this product.
1.1 Standard Features
The SPARCstation 5 system accommodates the following storage devices:
■ 535-Mbyte single-connector hard disk drive
■ 1.05-Gbyte single-connector hard disk drive
■ Diskette drive
■ Internal CD-ROM drive
It also accommodates up to 256 Mbytes of memory using dynamic single in-line
memory modules (DSIMMs). The system has four audio ports on the back panel and
includes an internal speaker. FIGURE 1-1 shows a typical SPARCstation 5 system.
1-1
FIGURE 1-1 Basic SPARCstation 5 System
1.1.1 Subassemblies, Boards, and Components
The SPARCstation 5 system unit accommodates the following subassemblies, boards,
and components:
■ System board
■ DSIMMs (up to 8)
■ S24 graphics card
■ SBus cards (up to 3)
■ Hard disk drives, 3.5-inch, 88.0-mm, single-connector (up to 2)
■ CD-ROM drive
■ Diskette drive (3.5-inch)
■ Power supply (150-watt with 2 fans)
1.1.2 Interior View
FIGURE 1-2 shows an interior view of the major subassemblies and the system
board for the SPARCstation 5 system.
1-2 SPARCstation 5 Service Manual • August 1994
Diskette drive
t
(bottom unit)
CD-ROM drive
(top unit)
Hard drives
(stacked)
DSIMMs
Power
supply
PROM
FIGURE 1-2 Interior View of SPARCstation 5 System
NVRAM
1.1.3 Rear View of SPARCstation 5 System
FIGURE 1-3 shows the rear view of the system.
AFX Bus slo
SBus slots
Chapter 1 Product Description 1-3
Legend:
1—AC On/Standby switch 7—SCSI 13—Keyboard
2—AC power outlet 8—Parallel 14—Audio, headphone
3—Lock block 9—AUI Ethernet 15—Audio, line-out
4—SBus 10—Twisted-pair Ethernet 16—Audio, line-in
5—SBus or AFX Bus 11—Serial port B 17—Audio, microphone
6—AC power receptacle 12—Serial port A
23 41
687
FIGURE 1-3 Rear View of SPARCstation 5 System
1.2 Internal Options
TABLE 1-1 lists the internal options.
TABLE1-1 Internal Options
5
14
13121110915
16
17
Option Quantity Comments
S24 card 1 Provides accelerated 24-bit color graphics on
SBus cards Up to 3 System board provides up to three SBus slots
Hard disk drives 1 or 2 System supports up to two disk drives of
1-4 SPARCstation 5 Service Manual • August 1994
the system AFX Bus.
for additional system functionality.
varying capacities. See Chapter 9 for more
information.
TABLE1-1 Internal Options
Option Quantity Comments
CD-ROM drive 1 Internal CD-ROM drive.
Diskette drive 1 Internal diskette drive for diskette I/O.
DSIMMs Up to 8 System supports up to 256 Mbytes of dynamic
1.3 External Options
TABLE 1-2 lists selected external small computer system interface (SCSI) options.
TABLE1-2 Selected External SCSI Peripheral Options
Unit Description
Desktop Backup Pack 150-Mbyte tape drive or DAT tape drive.
Desktop Disk Pack Disk expansion unit with a variety of SCSI disk drive
capacities.
Desktop SunCD™ Pack Compact CD-ROM disc drive.
Desktop Storage Module 1.3-Gbyte disk drive or 5.0-Gbyte tape drive.
SCSI Expansion Pedestal Up to seven SCSI disks, compact CD-ROM drive, tape
drive, other non-disk units.
Multi-Disk Pack Desktop enclosure containing a disk array of SCSI disk
drives.
20-Gbyte 4-mm Desktop Tape
Auto-Loader
SCSI Expansion Pedestal Holds up to eight disk drives and two or three
Desktop enclosure containing a tape drive with
multiple magazine cartridges; provides up to 20 Gbytes
of tape backup storage.
removable media in the upper tray. Requires a
minimum of two SCSI controllers if all three trays are
used. You cannot have more than seven SCSI devices
on each SCSI bus.
single in-line memory modules (DSIMMs).
Chapter 1 Product Description 1-5
1-6 SPARCstation 5 Service Manual • August 1994
CHAPTER
2
Troubleshooting Overview
This chapter describes the factory-defined boot sequence. It also describes the
different types of SPARCstation 5 diagnostic firmware and software tools that are
available to you for troubleshooting; the chapter explains how the tools are related
and when to use them.
2.1 Factory-Defined Boot Mode
The flowcharts in FIGURE 2-1 and FIGURE 2-2 outline the roles played by various
diagnostics during a factory-defined boot operation under the control of the
OpenBoot™ PROM (OBP) firmware.
The following sections describe the relationship between the various diagnostic
tools, and the role each tool plays during the SPARCstation 5 factory-defined boot
sequence. The descriptions in the following sections assume you are using a
graphics monitor to view test results.
FIGURE 2-1 (POST phase) and FIGURE 2-2 (OBP phase) graphically depict the flow
of OBP processing control, after power is switched on. Each figure depicts the
possible paths for processing control, and the switch settings for the factory-defined
boot sequence. By examining the two flowcharts you can see where in the processing
sequence other diagnostic tests are available or are encountered.
2-1
Power-on switch
POST phase
FIGURE 2-1 Factory-Defined Boot Sequence—POST Phase Settings and Tests
If you need to run extended FORTH Diagnostics to take advantage of more extensive
tests, see Appendix D.
Keyboard
attached
?
No
Yes
Stop
key
pressed?
Yes—Skip POST
No
Stop-d
keys
pressed?
Display errors on
keyboard LEDs
and console
OpenBoot PROM firmware takes control
No
Yes—Set
diag-switch? to true
false (default)
diag-
switch?
true
Low-level diagnostic:
POST phase
No
POST
passed
Yes
2-2 SPARCstation 5 Service Manual • August 1994
OpenBoot PROM firmware takes control
After POST phase,
System initialization
OpenBoot PROM Phase
Probe memory
Probe CPU
Yes
etting nvram defaults
true
nvramrc?
Evaluate the
script
Probe SBus devices and
interpret their drivers
Install console
System banner
displayed on screen
Stop-n
keys
pressed?
No
Stop-d
keys
pressed?
No
use-
Yes
Set diag-switch?
false
Stop-a
keys
pressed?
No
diag-
false
switch?
Tests selftest-#megs
mfg-
switch?
false
autoboot?
true
diag-
switch?
true
Booting from diag-device=net
and diag-file
Press Stop-a to go to ok prompt
Normal
operating system
Yes
true
Tests all memory
true
false
false
Booting from boot-dev=disk
and boot-file
Press Stop-a
to go to ok prompt
Boot <boot-device>
<boot-file>
ok prompt
On-board
diagnostics
SunDiag System
Exerciser
FIGURE 2-2 Factory-Defined Boot Sequence—OpenBoot PROM Phase Settings and Tests
Chapter 2 Troubleshooting Overview 2-3
2.2 After Power Is Switched On
When you turn on the system power, the low-level POST phase is initiated if any of
the following circumstances apply:
■ diag-switch? NVRAM parameter is set to true.
■ Stop-d keys are held down when you turn on the power.
■ Keyboard is disconnected, and diag-switch? is set to false.
The low-level POST code, which is stored in the boot PROM, is designed to test the
most basic functions of the system hardware. The status of the POST is conveyed by
four LEDs on the Sun Type-4, Type-5, and Compact 1 keyboards. The Caps Lock
LED blinks to indicate that the tests are in progress. If a failure is detected during
low-level POST, one of the other three LEDs will light to indicate the nature of the
failure. See Chapter 3 for more information.
Note – You can skip the POST phase by turning on the system while holding down
the Stop key.
At the successful completion of the low-level POST phase, the OpenBoot PROM
firmware takes control and performs the following initialization sequence:
■ Initialize system
■ Probe memory, then CPU
■ Evaluate Script (if use-nvramrc? is set to true)
■ Probe SBus devices and interpret their drivers
■ Install the console (see FIGURE 2-2)
After initialization, a system banner appears on the screen, and the high-level testing
begins. When the high-level tests are finished, the system checks parameters stored
in the NVRAM to determine the next step. Depending on the following parameter
settings, the system will:
■ Boot the operating system from a specified location, if auto-boot?
is set to true
■ Suppress the boot sequence and enter the FORTH Monitor (ok prompt), if auto-
boot? is set to false
■ Continually cycle through the OpenBoot PROM sequence, if mfg-switch? is set
to true
Note – If you are in the Sunmon compatibility mode (prompt is >) type n to return
to the OBP monitor (prompt is ok).
2-4 SPARCstation 5 Service Manual • August 1994
TABLE 2-1TABLE 2-1 contains a list of NVRAM parameters and explains their effect
on the power-up sequence. For more detailed information about NVRAM
parameters, see the OpenBoot Command Summary.
Note – At any point during the high-level OBP execution, you can abort the OBP
sequence and access the FORTH Monitor by pressing the Stop and “a” keys
simultaneously.
TABLE2-1 NVRAM Parameters Used During POST and Boot Sequence
NVRAM Parameter Description
selftest-#megs
Default = 1
diag-switch?
Default = false
auto-boot?
Default = true
This parameter determines how many megabytes of
memory to test during high-level OBP testing if diag-
switch? is concurrently set to false. The minimum is
zero; the maximum is the amount actually installed in the
system. The default is a 1-megabyte test.
When set to true, this parameter forces the system to test
automatically all available memory. It also enables
diagnostic message output to serial port A. If a properly
configured terminal or “tip window” is connected,
diagnostic progress can be monitored through this port.
When auto-boot? is set to true and diag-switch? is set
to false, diag-switch? forces the system to boot from
the device and file specified in boot-dev and boot-file.
If auto-boot? is set to true and diag-switch? is set to
true, the system boots the operating system from the
device and file specified in the diag-device and diag-
file NVRAM parameter fields. When set to false, this
will suppress the boot sequence. The system halts with the
ok prompt.
At the FORTH Monitor prompt, you can direct the system to boot the operating
system from a location that you specify, or you can execute a variety of additional
FORTH-based tests. See the OpenBoot Command Reference for a complete description
of the FORTH Monitor.
Chapter 2 Troubleshooting Overview 2-5
If the auto-boot? parameter is set to true (the default), the system boots a
standalone program. To determine which program and device to boot from, the
system checks the diag-switch? NVRAM parameter. TABLE 2-2 summarizes the
effect of the auto-boot? and diag-switch? parameters.
TABLE2-2 Summary of Autoboot and Diagnostic Switch Parameter
auto-boot? diag-switch? Result
false false or true > or ok prompt
true false Boot operating system from
device alias “disk” or
“net” for SPARCstation 5
system
true true Boot operating system from
device alias “net”
1. The boot parameters represented here are default settings. The defaults may be changed by following
the procedures listed in the OpenBoot Command Summary.
1
Settings
Once the operating system is running, you can invoke the SunDiag™ System
Exerciser if further diagnostic testing is warranted. Refer to Section 2.7, “SunDiag
System Exerciser,” for additional information.
Another standalone diagnostic program you can run is the SunDiagnostic Executive.
Refer to Section 2.8, “SunDiagnostic Executive,” for further information.
To boot user-specified programs, such as the SunDiagnostic Executive, you must be
at the > prompt or ok prompt. See Appendix D for a detailed procedure on how to
access the > or the ok prompt.
2-6 SPARCstation 5 Service Manual • August 1994
Loading...