GE SUN ULTRA2 SPARC STATION_SM_2211583-100_0 SunTM UltraTM 2 Series Service Manual

Download

Page 1

Sun™ Ultra™2 Series Service Manual

The Network Is the Computer

Sun Microsystems Computer Company

2550 Garcia Avenue Mountain View, CA 94043 USA 415 960-1300 fax 415 969-9131

Part No.: 802-2561-10 Revision A, May 1996

™

Page 2

Copyright 1996 Sun Microsystems, Inc. 2550 Garcia A venue, Mountain V iew, California 94043-1 100 U.S.A. All rights reserved. This product or document is protected by copyright and distributed under licenses restricting its use, copying, distribution,

and decompilation. No part of this product or document may be reproduced in any form by any means without prior written authorization of Sun and its licensors, if any .

Portions of this product may be derived from the UNIX® system and from the Berkeley 4.3 BSD system, licensed from the University of California. UNIX is a registered trademark in the United States and in other countries and is exclusively licensed by X/Open Company Ltd. Third-party software, including font technology in this product, is protected by copyright and licensed fr om Sun’s suppliers.

RESTRICTED RIGHTS LEGEND: Use, duplication, or disclosure by the government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in T echnical Data and Computer Software clause at DF ARS 252.227-7013 and F AR 52.227-19.

Sun, Sun Microsystems, the Sun logo, Solaris, Sun Docs, Ultra, Ultra Enterprise, AnswerBook, SunVTS, SunCD, SunMicrophone, SunCamera, Ultra Port Architecture, and SunV ideo are trademarks or registered trademarks of Sun Micr osystems, Inc. in the United States and in other countries. All SP ARC trademarks are used under license and are trademarks or r egistered trademarks of SP ARC International, Inc. in the United States and in other countries. Products bearing SP ARC trademarks are based upon an ar chitecture developed by Sun Microsystems, Inc.

The OPEN LOOK® and Sun™ Graphical User Interfaces were developed by Sun Microsystems, Inc. for its users and licensees. Sun acknowledges the pioneering efforts of Xerox Corporation in researching and developing the concept of visual or graphical user interfaces for the computer industry . Sun holds a nonexclusive license from Xer ox to the Xerox Graphical User Interface, which license also covers Sun’s licensees who implement OPEN LOOK GUIs and otherwise comply with Sun’s written license agreements.

X Window System is a trademark of X Consortium, Inc. THIS PUBLICATION IS PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING,

BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.

Copyright 1996 Sun Microsystems, Inc., 2550 Garcia A venue, Mountain V iew, Californie 94043-1 100 U.S.A. T ous droits réservés. Ce produit ou document est pr otégé par un copyright et distribué avec des licences qui en restreignent l’utilisation, la copie

et la décompilation. Aucune partie de ce produit ou de sa documentation associée ne peut être reproduite sous aucune forme, par quelque moyen que ce soit, sans l’autorisation préalable et écrite de Sun et de ses bailleurs de licence, s’il y en a.

Des parties de ce produit pourront être derivées du système UNIX® et du système Berkeley 4.3 BSD licencié par l’Université de Californie. UNIX est une marque enregistrée aux Etats-Unis et dans d’autres pays, et licenciée exclusivement par X/Open Company Ltd. Le logiciel détenu par des tiers, et qui comprend la technologie relative aux polices de caractères, est protégé par un copyright et licencié par des fournisseurs de Sun.

Sun, Sun Microsystems, le logo Sun, Solaris, Sun Docs, Ultra, Ultra Enterprise, AnswerBook, SunVTS, SunCD, SunMicrophone, SunCamera, Ultra Port Architecture, and SunV ideo sont des marques déposées ou enregistrées de Sun Microsystems, Inc. aux Etats-Unis et dans d’autr es pays. T outes les marques SP ARC, utilisées sous licence, sont des marques déposées ou enr egistrées de SP ARC International, Inc. aux Etats-Unis et dans d’autres pays. Les produits portant les marques SPARC sont basés sur une architectur e développée par Sun Microsystems, Inc.

Les utilisateurs d’interfaces graphiques OPEN LOOK® et Sun™ ont été développés de Sun Microsystems, Inc. pour ses utilisateurs et licenciés. Sun reconnaît les efforts de pionniers de Xerox Corporation pour la recher che et le développement du concept des interfaces d’utilisation visuelle ou graphique pour l’industrie de l’informatique. Sun détient une licence non exclusive de Xerox sur l’interface d’utilisation graphique, cette licence couvrant aussi les licenciés de Sun qui mettent en place les utilisateurs d’interfaces graphiques OPEN LOOK et qui en outre se conforment aux licences écrites de Sun.

Le système X Window est un produit du X Consortium, Inc. CETTE PUBLICATION EST FOURNIE "EN L’ETAT" SANS GARANTIE D’AUCUNE SORTE, NI EXPRESSE NI IMPLICITE, Y COMPRIS, ET

SANS QUE CETTE LISTE NE SOIT LIMITATIVE, DES GARANTIES CONCERNANT LA VALEUR MARCHANDE, L’APTITUDE DES PRODUITS A REPONDRE A UNE UTILISATION PARTICULIERE OU LE FAIT QU’ILS NE SOIENT PAS CONTREFAISANTS DE PRODUITS DE TIERS.

Please Recycle

Page 3

Revision History

Revision Dash Date Comments

802-2561-10 -10 May 1996 FCS

Page 4

Ultra 2 Creator Series Service Manual—May 1996

Page 5

Contents

Preface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

Part 1 —System Information

1. Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.1 Ultra 2 Series Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.1.1 I/O Devices (Ultra 2 Series Desktop) . . . . . . . . . . . . 1-3

1.1.2 System Unit Features . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

1.1.3 System Unit Components . . . . . . . . . . . . . . . . . . . . . 1-5

Part 2 —Troubleshooting

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

2.1 SunVTS Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.1.1 SunVTS Kernel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

2.1.2 SunVTS User Interface . . . . . . . . . . . . . . . . . . . . . . . . 2-2

2.1.3 SunVTS TTY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

3. Power-On Self-Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.1 POST Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Page 6

3.2 Pre-POST Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

3.2.1 Setting Up a Tip Connection . . . . . . . . . . . . . . . . . . . 3-3

3.2.2 Verifying the Baud Rate . . . . . . . . . . . . . . . . . . . . . . . 3-4

3.3 Initilizing POST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

3.4 Max and Min Levels of POST . . . . . . . . . . . . . . . . . . . . . . . 3-6

3.4.1 Diag-Level NVRAM Variable Set to Max. . . . . . . . . 3-7

3.4.2 Diag-level NVRAM Variable Set to Min. . . . . . . . . . 3-13

3.5 POST Progress and Error Reporting . . . . . . . . . . . . . . . . . 3-14

3.6 Bypassing POST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

3.7 Additional Keyboard Control Commands . . . . . . . . . . . . 3-15

3.8 System and Keyboard LEDs . . . . . . . . . . . . . . . . . . . . . . . . 3-15

3.9 System Board Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

4. Troubleshooting Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.1 Power-On Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

4.2 Video Output Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

4.3 Disk or CD-ROM Drive Failure . . . . . . . . . . . . . . . . . . . . . 4-3

4.4 Power Supply Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

4.5 DSIMM Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

4.6 OpenBoot PROM On-Board Diagnostics. . . . . . . . . . . . . . 4-11

4.6.1 watch-clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

4.6.2 watch-net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

4.6.3 watch-net-all . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

4.6.4 probe-scsi and probe-scsi-all . . . . . . . . . . . . . . . . . . . 4-13

4.6.5 test <Alias Name>, <Device Path>, -All . . . . . . . . . 4-16

vi Ultra 2 Series Service Manual—May 1996

Page 7

4.6.6 FFB Card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17

Part 3 —Preparing for Service

5. Safety and Tool Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.1 Safety Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

5.2 Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

5.3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

5.3.1 Modiﬁcation to Equipment . . . . . . . . . . . . . . . . . . . . 5-3

5.3.2 Placement of a Sun Product. . . . . . . . . . . . . . . . . . . . 5-3

5.3.3 Power Cord Connection. . . . . . . . . . . . . . . . . . . . . . . 5-3

5.3.4 Electrostatic Discharge . . . . . . . . . . . . . . . . . . . . . . . . 5-4

5.3.5 Lithium Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

5.4 Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

6. Powering On and Off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6.1 Powering On the System . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6.2 Powering Off the System. . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Part 4 —Subassembly Removal

and Replacement

7. Internal Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7.1 Removing the Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.2 Attaching the Wrist Strap . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7.3 Replacing the Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

8. Major Subassemblies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

8.1 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

8.1.1 Removing the Power Supply. . . . . . . . . . . . . . . . . . . 8-2

Contents vii

Page 8

8.1.2 Replacing the Power Supply . . . . . . . . . . . . . . . . . . . 8-4

8.2 SCSI Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

8.2.1 Removing the SCSI Cable . . . . . . . . . . . . . . . . . . . . . 8-5

8.2.2 Replacing the SCSI Cable. . . . . . . . . . . . . . . . . . . . . . 8-6

8.3 Diskette Drive Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

8.3.1 Removing the Diskette Drive Cable . . . . . . . . . . . . . 8-7

8.3.2 Replacing the Diskette Drive Cable . . . . . . . . . . . . . 8-7

9. Storage Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

9.1 Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

9.1.1 Removing a Disk Drive . . . . . . . . . . . . . . . . . . . . . . . 9-2

9.1.2 Replacing a Disk Drive. . . . . . . . . . . . . . . . . . . . . . . . 9-3

9.2 Media Bay Chassis Bracket . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

9.2.1 Removing the Chassis Bracket . . . . . . . . . . . . . . . . . 9-4

9.2.2 Replacing the Chassis Bracket. . . . . . . . . . . . . . . . . . 9-5

9.3 CD-ROM Drive or 4-mm/8-mm/2.5-Gbyte Tape Drive . 9-6

9.3.1 Removing a CD-ROM Drive or 4-mm/8-mm/2.5-Gbyte

Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6

9.3.2 Replacing a CD-ROM Drive or 4-mm/8-mm/2.5-Gbyte

Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6

9.4 Diskette Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7

9.4.1 Removing a Diskette Drive . . . . . . . . . . . . . . . . . . . . 9-7

9.4.2 Replacing a Diskette Drive . . . . . . . . . . . . . . . . . . . . 9-8

Part 5 —System Board

10. System Board and Component Replacement . . . . . . . . . . . . . 10-1

10.1 System Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2

viii Ultra 2 Series Service Manual—May 1996

Page 9

10.1.1 Removing a System Board. . . . . . . . . . . . . . . . . . . . . 10-2

10.1.2 Replacing a System Board . . . . . . . . . . . . . . . . . . . . . 10-5

10.2 NVRAM/TOD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-7

10.2.1 Removing a NVRAM/TOD. . . . . . . . . . . . . . . . . . . . 10-7

10.2.2 Replacing a NVRAM/TOD . . . . . . . . . . . . . . . . . . . . 10-8

10.3 SBus Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-9

10.3.1 Removing an SBus Card. . . . . . . . . . . . . . . . . . . . . . . 10-9

10.3.2 Replacing an SBus Card . . . . . . . . . . . . . . . . . . . . . . . 10-11

10.4 FFB Card (Workstation Only) . . . . . . . . . . . . . . . . . . . . . . . 10-15

10.4.1 Removing an FFB Card . . . . . . . . . . . . . . . . . . . . . . . 10-15

10.4.2 Replacing an FFB Card. . . . . . . . . . . . . . . . . . . . . . . . 10-17

10.5 DSIMM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-19

10.5.1 Removing a DSIMM . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20

10.5.2 Replacing a DSIMM . . . . . . . . . . . . . . . . . . . . . . . . . . 10-22

10.6 CPU Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-23

10.6.1 Removing a CPU Module . . . . . . . . . . . . . . . . . . . . . 10-23

10.6.2 Replacing a CPU Module. . . . . . . . . . . . . . . . . . . . . . 10-25

10.7 Shroud Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-26

10.7.1 Removing the Shroud Assembly. . . . . . . . . . . . . . . . 10-26

10.7.2 Replacing the Shroud Assembly . . . . . . . . . . . . . . . . 10-27

10.8 Shroud Assembly Speaker. . . . . . . . . . . . . . . . . . . . . . . . . . 10-28

10.8.1 Removing the Shroud Assembly Speaker . . . . . . . . 10-28

10.8.2 Replacing the Shroud Assembly Speaker . . . . . . . . 10-30

Contents ix

Page 10

Part 6 —Illustrated Parts Breakdown

11. Replacement Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

Part 7 —Appendixes, Glossary, and Index

A. Product Speciﬁcations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

A.1 Electrical Speciﬁcations . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

A.2 Environmental Speciﬁcations . . . . . . . . . . . . . . . . . . . . . . . A-4

B. Signal Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

B.1 Keyboard/Mouse Connector and Serial Ports A and B

Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

B.1.1 Keyboard/Mouse Connector. . . . . . . . . . . . . . . . . . . B-1

B.1.2 Serial Port Connector A and B (RS-423/RS-232). . . B-2

B.2 TPE (Twisted-Pair Ethernet) Connector. . . . . . . . . . . . . . . B-4

B.3 Fast Wide SCSI (Small Computer System Interface)

Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5

B.4 Audio Port Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-7

B.5 Parallel Port Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-8

B.6 MII (Media Independent Interface) Connector. . . . . . . . . B-9

B.7 Graphics Card 13W3 Video Connector . . . . . . . . . . . . . . . B-11

C. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

C.1 System Unit/Server Overview . . . . . . . . . . . . . . . . . . . . . . C-1

C.1.1 UPA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

C.1.2 SBus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

C.1.3 UltraSPARC Processor . . . . . . . . . . . . . . . . . . . . . . . . C-4

C.1.4 Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5

C.1.5 Graphics and Imaging (Workstation Only) . . . . . . . C-5

x Ultra 2 Series Service Manual—May 1996

Page 11

C.1.6 Peripherals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-7

C.1.6.1 CD-ROM Drive . . . . . . . . . . . . . . . . . . . . . . . . . C-7

C.1.6.2 Floppy Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . C-8

C.1.6.3 Disk Drives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-8

C.1.6.4 SCSI Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . C-8

C.1.6.5 Optional 2.5-Gbyte, 4-mm, and 8-mm

Tape Drives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-9

C.1.7 Networking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-9

C.1.8 Terminal, Modem, Keyboard, and Mouse

Connectivity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-10

C.1.9 Printer connectivity. . . . . . . . . . . . . . . . . . . . . . . . . . . C-10

C.1.10 Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-10

C.1.10.1 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-10

C.1.10.2 Built-In Speaker . . . . . . . . . . . . . . . . . . . . . . . . . C-12

C.1.10.3 Microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-13

C.2 ASICS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-13

C.2.1 Multi-Processing System Controller (SC_MP). . . . . C-14

C.2.2 System I/O Controller (SYSIO). . . . . . . . . . . . . . . . . C-15

C.2.3 Buffered Memory Cross Bar (BMX) . . . . . . . . . . . . . C-15

C.2.4 Clock Chip (RISC). . . . . . . . . . . . . . . . . . . . . . . . . . . . C-16

C.2.5 Fast Ethernet Parallel Port (FEPS). . . . . . . . . . . . . . . C-16

C.2.5.1 Frame Buffer Controller (FBC). . . . . . . . . . . . . C-17

C.2.5.2 RAM Digital-to-Analog Converter

(RAMDAC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-17

C.2.6 Slave I/O (SLAVIO) . . . . . . . . . . . . . . . . . . . . . . . . . . C-18

Contents xi

Page 12

C.2.7 CBT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-18

C.3 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-19

C.4 System Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-21

C.5 Jumper Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-22

C.5.1 Serial Port Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . C-22

C.5.2 Flash PROM Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . C-23

C.5.3 Additional System Board Jumper Blocks. . . . . . . . . C-24

C.6 Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-25

C.6.1 Enclosure Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-25

C.6.2 Enclosure Features . . . . . . . . . . . . . . . . . . . . . . . . . . . C-25

C.7 Environmental Compliance. . . . . . . . . . . . . . . . . . . . . . . . . C-26

C.8 Agency Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-26

Glossary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Glossary-1

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Index-1

xii Ultra 2 Series Service Manual—May 1996

Page 13

Figures

Figure 1-1 Ultra 2 Series Desktop System. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Figure 1-2 Ultra Enterprise 2 Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Figure 1-3 System Unit Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Figure 1-4 System Unit Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Figure 3-1 Sun Type-5 Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Figure 3-2 Power LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Figure 3-3 Sun Type-5 Keyboard LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Figure 4-1 Power Supply Connector J3203. . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Figure 4-2 Power Supply Connector J3204. . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Figure 4-3 Power Supply Connector J3205. . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Figure 4-4 Power Supply Connector J3206. . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Figure 6-1 Rear View of the System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Figure 6-2 Sun Type-5 Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Figure 7-1 Location of Lock Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Figure 7-2 Removing the Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

Figure 7-3 Attaching the Wrist Strap. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

xiii

Page 14

Figure 7-4 Replacing the Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5

Figure 8-1 Removing the Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

Figure 8-2 Replacing the Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

Figure 10-1 Removing a System Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-4

Figure 10-2 NVRAM/TOD Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-8

Figure 10-3 Removing an SBus Card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-10

Figure 10-4 Installing the Card Extractor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-11

Figure 10-5 Removing the SBus Card Adapter Bracket . . . . . . . . . . . . . . . . 10-12

Figure 10-6 Removing an SBus Card Extractor . . . . . . . . . . . . . . . . . . . . . . . 10-13

Figure 10-7 Replacing an SBus Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-14

Figure 10-8 Preparing to Remove an FFB Card . . . . . . . . . . . . . . . . . . . . . . . 10-16

Figure 10-9 Removing an FFB Card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-16

Figure 10-10 Replacing an FFB Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-18

Figure 10-11 Seating an FFB Card into the Socket. . . . . . . . . . . . . . . . . . . . . . 10-18

Figure 10-12 Securing an FFB Card in the Chassis . . . . . . . . . . . . . . . . . . . . . 10-19

Figure 10-13 DSIMM Ejection Lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-21

Figure 10-14 CPU Module Locations and Shroud Assembly

Processor Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-24

Figure 10-15 Removing a CPU Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-25

Figure 10-16 Shroud Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-27

Figure 10-17 Shroud Assembly Speaker Removal. . . . . . . . . . . . . . . . . . . . . . 10-29

Figure B-1 Keyboard/Mouse Connector Pin Configuration . . . . . . . . . . . B-1

Figure B-2 Serial Port A and B Connector Pin Configuration . . . . . . . . . . B-2

Figure B-3 TPE Connector Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . B-4

Figure B-4 Fast Wide SCSI Connector Pin Configuration. . . . . . . . . . . . . . B-5

Figure B-5 Audio Port Connectors Jack Configuration. . . . . . . . . . . . . . . . B-7

xiv Ultra 2 Series Service Manual—May 1996

Page 15

Figure B-6 Parallel Port Connector Pin Configuration . . . . . . . . . . . . . . . . B-8

Figure B-7 MII Connector Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . B-9

Figure B-8 Graphics Card 13W3 Video Connector Pin Configuration . . . B-11

Figure C-1 System Unit or Server Functional Block Diagram . . . . . . . . . . C-2

Figure C-2 Ultra 2 Series Desktop Workstation and Ultra

Enterprise 2 Server System Board Block Diagram . . . . . . . . . . C-21

Figure C-3 Identifying Jumper Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-22

Figures xv

Page 16

xvi Ultra 2 Series Service Manual—May 1996

Page 17

Tables

Table P-1 Document Organization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii

Table P-2 Typographic Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiv

Table P-3 Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxv

Table P-4 Shell Prompts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvi

Table P-5 Ordering Sun Documents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvii

Table 1-1 Supported I/O Devices (Ultra 2 Series Desktop) . . . . . . . . . . . 1-3

Table 1-2 System Unit Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Table 2-1 SunVTS Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Table 3-1 Diag-Level Switch Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Table 3-2 Keyboard LED Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Table 4-1 Identification of Internal Drives . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Table 4-2 Connector J3203 Pin Description. . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Table 4-3 Connector J3204 Pin Description. . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Table 4-4 Connector J3205 Pin Description. . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Table 4-5 Connector J3206 Pin Description. . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Table 4-6 DSIMM Memory Address Map. . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

xvii

Page 18

Table 4-7 Selected OBP On-Board Diagnostic Tests . . . . . . . . . . . . . . . . . 4-17

Table 10-1 DSIMM Bank and Socket Locations . . . . . . . . . . . . . . . . . . . . . . 10-20

Table 11-1 List of Replacement Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2

Table A-1 System Unit and Server Physical Specifications. . . . . . . . . . . . A-1

Table A-2 17-Inch Monitor Physical Specifications . . . . . . . . . . . . . . . . . . A-2

Table A-3 20-Inch Monitor Physical Specifications . . . . . . . . . . . . . . . . . . A-2

Table A-4 Electrical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

Table A-5 Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4

Table B-1 Keyboard/Mouse Connector Pin Assignments . . . . . . . . . . . . B-2

Table B-2 Serial Port A and B Connector Pin Assignments . . . . . . . . . . . B-3

Table B-3 TPE Connector Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . B-4

Table B-4 Fast Wide SCSI Connector Pin Assignments. . . . . . . . . . . . . . . B-5

Table B-5 Audio Port Connectors Line Assignment . . . . . . . . . . . . . . . . . B-7

Table B-6 Parallel Port Connector Pin Assignments . . . . . . . . . . . . . . . . . B-8

Table B-7 MII Connector Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . B-10

Table B-8 Graphics Card 13W3 Video Connector Pin Assignments . . . . B-11

Table C-1 Supported Disk Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-8

Table C-2 Audio Port Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-11

Table C-3 Audio Inputs and Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-12

Table C-4 Built-In Speaker Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . C-12

Table C-5 ASIC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-14

Table C-6 Ultra 2 series Desktop Workstation and Ultra

Enterprise 2 Server Power Supply Budget. . . . . . . . . . . . . . . . . C-20

Table C-7 Serial Port Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-23

Table C-8 Flash PROM Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . C-24

Table C-9 Additional System Board Jumper Blocks. . . . . . . . . . . . . . . . . . C-24

xviii Ultra 2 Series Service Manual—May 1996

Page 19

Code Samples

Code Example 3-1 Diag-Level NVRAM Variable Set to Max . . . . . . . . . . 3-8

Code Example 3-2 Diag-Level NVRAM variable Set to Min. . . . . . . . . . . 3-13

Code Example 3-3 Typical Error Code Failure Message . . . . . . . . . . . . . . 3-14

Code Example 4-1 watch-clock Output Message . . . . . . . . . . . . . . . . . . . . 4-11

Code Example 4-2 watch-net Output Message . . . . . . . . . . . . . . . . . . . . . . 4-12

Code Example 4-3 watch-net-all Output Message . . . . . . . . . . . . . . . . . . . 4-13

Code Example 4-4 probe-scsi Output Message . . . . . . . . . . . . . . . . . . . . . . 4-14

Code Example 4-5 probe-scsi-all Output Message . . . . . . . . . . . . . . . . . . . 4-15

Code Example 4-6 test Output Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16

xix

Page 20

xx Ultra 2 Series Service Manual—May 1996

Page 21

Document Organization

Preface

The Ultra™2 Series Service Manual provides detailed procedures that describe the removal and replacement of ﬁeld replaceable units (FRUs) in the Ultra 2 series computer (system unit) and the Ultra Enterprise™ 2 server (server). People that should use this book include technicians, advanced computer system end-users with experience in replacing hardware and troubleshooting, system administrators, and qualiﬁed service providers.

Refer to Table P-1. This book is comprised of seven parts. Each part is divided into chapters as follows:

xxi

Page 22

T able P-1 Document Organization

Part Number/Title Chapter Number/Title Content Description

Part 1, “System Information”

Part 2, “Troubleshooting”

Part 3, “Preparing for Service”

Part 4, “Subassembly Removal and Replacement

”

Chapter 1, “Product Description”

Chapter 2, “SunVTS Overview”

Chapter 3, “Power-On Self-Test (POST)”

Chapter 4, “Troubleshooting Procedures”

Chapter 5, “Safety and Tool Requirements”

Chapter 6, “Power On and Off

Chapter 7, “Internal Access”

”

Describes the major components of the Ultra 2 series desktop system

and the Ultra

Enterprise 2 server

Describes the execution of individual tests for verifying hardware conﬁguration and functionality

Describes the execution of POST and provides examples of POST output patterns

Provides actions to generalized hardware symptom casualty

Explains how to work safely when servicing the Ultra 2 series

Provides step-by-step procedures to power on and power off the Ultra 2 series

Provides step-by-step procedures to remove the Ultra 2 series cover, attach the wrist strap, and replace the cover

Chapter 8, “Major Subassemblies”

Chapter 9, “Storage Devices”

Part 5, “System Board” Chapter 10, “System

Board and Component Replacement”

xxii Ultra 2 Series Service Manual—May 1996

Provides step-by-step procedures to remove and replace major subassemblies

Provides step-by-step procedures to remove and replace storage devices

Provides step-by-step procedures to remove and replace the system board, and to remove and replace various components associated with system board operation

Page 23

Table P-1 Document Organization (Continued)

Part Number/Title Chapter Number/Title Content Description

Part 6, “Illustrated Parts Breakdown”

Chapter 11, “Replacement Parts”

Lists replaceable parts for the Ultra 2 series system unit

Warnings and Cautions

Part 7, “Appendixes, Glossary, and Index”

Warning – This equipment contains lethal voltage. Accidental contact can result in serious injury or death.

Caution – Improper handling by unqualiﬁed personnel can cause serious damage to this equipment. Unqualiﬁed personnel who tamper with this equipment may be held liable for any resultant damage to the equipment.

Caution – Use proper ESD grounding techniques when handling components. Wear an antistatic wriststrap and use an ESD-protected mat. Store ESD-sensitive components in antistatic bags before placing it on any surface.

Appendix A, B, and C Provide product speciﬁcations,

signal descriptions, and functional descriptions for the Ultra 2 series, respectively

Glossary Provides a listing of acronyms,

terms, and deﬁnitions

Index Provides a quick reference to

speciﬁc topics

Caution – The surface of the UltraSPARC CPUchip may be hot and cause personal injury if touched. Avoid contact.

Individuals who service this equipment must observe all safety precautions and ensure compliance with skill level requirements, certiﬁcation, and all applicable local and national laws.

Preface xxiii

Page 24

Procedures in this document must be performed by trained maintenance providers. Only people who have been trained by the Sun Microsystems training facilities (or by Sun Microsystems afﬁliates) and have been certiﬁed as required by local and national laws are considered qualiﬁed.

Note – Prior to performing service or repair, carefully read the associated procedure. If a similar repair has not been performed on comparable equipment, do not attempt to perform the procedure.

T ypographic Conventions

Table P-2 lists typographic conventions used within this service manual.

Table P-2 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

Related Documentation

Table P-3 lists related manuals supporting the Ultra 2 Series Service Manual which are are also available on-line (refer to the Ultra 2 Series Hardware

AnswerBookTMor the Solaris on Sun Hardware AnswerBook set).

Edit your.login ﬁle. Use ls -a to list all ﬁles.

machine_name% You have mail.

machine_name% su Password:

To delete a ﬁle, type rm ﬁlename.

Read Chapter 6 in the User’s Guide. These are called class options. You must be root to do this.

xxiv Ultra 2 Series Service Manual—May 1996

Page 25

Table P-3 Related Documentation

Application Title Part Number

™

Installation Sun

Ultra™ 2 Series Installation Guide 802-2560

Installation Sun™ Ultra™ 2 Series Hardware AnswerBook

™

804-5318

Installation

™

Conﬁguration Sun

Ultra™ 2 Series Reference Manual 802-2562

Setup Sun™ Ultra™ 2 Series Hardware Setup Instructions 802-5933

Speciﬁcation 17-Inch Entry, 17-Inch Premium, and 20-Inch Premium

802-6178

Color Monitors Speciﬁcations

™

Speciﬁcation SunCD

4 Drive Speciﬁcations 802-4157

Speciﬁcation Diskette Drive Speciﬁcations 802-5283

Speciﬁcation 2.5-Gbyte QIC Tape Drive Speciﬁcations 802-3615

Speciﬁcation 8-mm Tape Drive Speciﬁcations 802-5775

Speciﬁcation 4-mm Tape Drive Speciﬁcations 802-5324

Diagnostics SunVTS™ 2.0 User’s Guide 802-5331

Diagnostics SunVTS™ 2.0 Test Reference Manual 802-5330

Diagnostics SunVTS™ 2.0 Quick Reference Card 802-5329

Preface xxv

Page 26

Shell Prompts

Table P-4 lists the default system prompt and superuser prompt for the C shell, Bourne shell, and Korn shell.

Table P-4 Shell Prompts

Shell Prompt

C shell machine_name%

C shell superuser machine_name#

Bourne shell and Korn shell $

Bourne shell and Korn shell superuser

Ordering Sun Documents

The SunDocs™ Order Desk is a distribution center for Sun Microsystems technical documents. Technical documents may be purchased through major credit cards or company purchase orders. Table P-5 lists the locations where you can order documents.

xxvi Ultra 2 Series Service Manual—May 1996

Page 27

Table P-5 Ordering Sun Documents

Country Telephone Fax

United States 1-800-873-7869 1-800-944-0661 United Kingdom 0-800-89-88-88 0-800-89-88-87 France 05-90-61-57 05-90-61-58 Belgium 02-720-09-09 02-725-88-5 Luxembourg 32-2-720-09-09 32-2-725-88-5 Germany 01-30-81-61-91 01-30-81-61-92 The Netherlands 06-022-34-45 06-022-34-46 Sweden 020-79-57-26 020-79-57-27 Switzerland 155-19-26 155-19-27 Japan 0120-33-9096 0120-33-9097

World Wide Web: http://www.sun.com/sunexpress/

Sun Welcomes Your Comments

Please use the Reader Comment Card that accompanies this document. We are interested in improving our documentation and welcome comments and suggestions.

You can also email or fax your comments to us. Please include the part number of your document in the subject line of your email or fax message.

• Email: smcc-docs@sun.com

• Fax: SMCC Document Feedback

1-415-786-6443

Preface xxvii

Page 28

xxviii Ultra 2 Series Service Manual—May 1996

Page 29

Part 1 — System Information

Product Description page 1-1

Page 30

Page 31

Product Description

1.1 Ultra 2 Series Overview

The Ultra 2 series desktop workstation and the Ultra Enterprise 2 server are multi-processor devices that use the family of UltraSPARCTM processors. Both the desktop workstation and the server offer super-scalar processor technology, multiprocessing, high-performance memory interconnection, and high bandwidth I/O. In addition, the desktop workstation provides accelerated graphics.

Figure 1-1 illustrates the Ultra 2 series desktop workstation. Major components include:

• Input/output (I/O) devices:

• Monitor

• Keyboard

• Mouse

• Microphone (not illustrated)

• Color camera (optional, not illustrated)

• External cables (not illustrated)

• System unit

1-1

Page 32

Figure 1-1 Ultra 2 Series Desktop System

Figure 1-2 illustrates the Ultra Enterprise 2 server. The major components include:

• External cables (not illustrated)

• System unit

Figure 1-2 Ultra Enterprise 2 Server

The following sections provide a brief description of the Ultra 2 series desktop workstation I/O devices. Also included is a detailed overview of the Ultra 2 series and the Ultra Enterprise 2 system unit.

1-2 Ultra 2 Series Service Manual—May 1996

Page 33

1.1.1 I/O Devices (Ultra 2 Series Desktop)

The Ultra 2 series desktop workstation uses the following I/O devices:

• Keyboard

• Optical mouse

• Multimedia speaker system

• Microphone

• Color camera

• One of several types of monitors

Table 1-1 lists the supported I/O devices and provides a brief description of each device.

Table 1-1 Supported I/O Devices (Ultra 2 Series Desktop)

I/O Device Description

17-inch (43-cm) color monitor

20-inch (51-cm) color monitor

Microphone SunMicrophone

Color camera Optional SunVideoTM and SunCamera

Keyboard Sun Type 5; AT 101 or UNIX layout available

Optical mouse Optomechanical, 3-button

1152 x 900 resolution, 76- or 66-Hz refresh rate, 100 dots per inch (DPI)

1280 x 1024 resolution, 76- or 66-Hz refresh rate, 110 DPI

960 x 680 resolution, 112-Hz refresh rate, 81 DPI 1152 x 900 resolution, 76- or 66-Hz refresh rate, 84 DPI

1280 x 1024 resolution, 76- or 66-Hz refresh rate, 93 DPI

960 x 680 resolution, 112-Hz refresh rate, 79 DPI

Product Description 1-3

Page 34

1.1.2 System Unit Features

System unit components are located in a Sun Ultra 2 chassis. Overall chassis dimensions (width x depth x height) are 17.87 inches x 17.63 inches X 5.20 inches (450mm x 444mm x 130mm). The chassis contains (or may be upgraded to contain) electrical components with the following features:

• SPARC

• One to two 167-Megahertz (MHz) processor modules with 512-Kilobyte

• One to two 200-MHz processor modules with 1-Megabyte (Mbyte)

• Solaris

V9 64-bit UltraSPARC processor on the module

(Kbyte) external caches each

external cache each

2.5.1 operating system

• High performance Ultra Port Architecture

• High bandwidth memory system using 144-bit, 60-nanosecond (ns) dynamic

random access memory (DRAM) single in-line memory module (SIMM)

• 16 DRAM SIMM (DSIMM) sockets providing from 64 Mbytes to 2 Gigabytes

(Gbytes) of memory using 16-Mbyte, 32-Mbyte, 64-Mbyte, and 128-Mbyte DSIMMs

(UPA)

• Fast frame buffer (FFB) graphics (67-MHz graphics clock) with 24-bit color

and 8-bit overlay: single buffer FFB, double buffer FFB (Ultra 2 series desktop only). Double buffer FFB with 75-MHz graphics clock (200-MHz Ultra 2 series desktop only)

• 16-bit CD quality audio with support for line in/out, headphone, and stereo

microphone

• 20-Mbyte-per-second small computer system interface (SCSI)

• 10-Megabits-per-second (Mbps)/100-Mbps twisted-pair Ethernet (TPE)

networking

• 100-Mbps Media-Independent Interface (MII) networking

• Four IEEE 1496-compliant 25-MHz SBus Input/Output (I/O) slots

• Two DB25-type standard connector serial ports

Note – Each serial port supports synchronous and asynchronous communication.

1-4 Ultra 2 Series Service Manual—May 1996

Page 35

• DB25-type connector parallel port (Centronics compatible)

• Standard Sunness

Note – Standard Sunness includes the time of day (TOD)/nonvolatile random-access memory (NVRAM), and boot programmable read-only memory (PROM) or FlashPROM for Power-On Self-Test/OpenBoot PROM (POST/OBP)

• Built-in speaker

• Diagnostic LED

• Power conservation support

1.1.3 System Unit Components

System unit components are listed in Table 1-2. Figure 1-3 illustrates the system unit interior. Figure 1-4 illustrates the system unit rear panel.

Note – Part numbers listed in Table 1-2 are correct as of the service manual publication date but are subject to change without notice. Consult your authorized Sun sales representative or service provider to conﬁrm a part number prior to ordering a replacement part.

Product Description 1-5

Page 36

Table 1-2 System Unit Components

Part

Component

Number Description Model

System Board 501-3132-xx 167-MHz or 200-

MHz system board

Assy, 1/2 Mbyte, 6ns, Mod

Assy, 1 Mbyte, 5ns, Mod 501-3041-xx 200-MHz CPU

16-Mbyte DSIMM 501-2479-xx 16-Mbyte DSIMM,

32-Mbyte DSIMM 501-2622-xx 32-Mbyte DSIMM,

64-Mbyte DSIMM 501-2480-xx 64-Mbyte DSIMM,

128-Mbyte DSIMM 501-3136-xx 128-Mbyte DSIMM,

DFB-FFB graphics card, 67-MHz

SFB-FFB graphics card, 67-MHz

501-2942-xx 167-MHz CPU

module, 512-Kbyte external cache

module, 1-Mbyte external cache

60-nanosecond (ns)

60-ns

501-4126-xx

501-4127-xx SFB,FFB graphics

DFB,FFB graphics card, 67-MHz

card, 67-MHz

All

Models 1170 and 2170 only

Models 1200 and 2200 only

All

All (Ultra 2 series desktop workstation only)

DFB-FFB graphics card, 75-MHz

350-watt power supply 300-1315-xx 350-watt (W)

3.5-inch floppy drive, 3D (optional)

4X CD drive (optional)

1-6 Ultra 2 Series Service Manual—May 1996

501-3129-xx DFB,FFB graphics

370-2151-xx Drive, ﬂoppy,

370-2102-xx Quadspeed CD

card, 75-MHz

power supply

3.5inch, 3D, black bezel

drive

All (Ultra 2 series desktop workstation only)

All

Page 37

Table 1-2 System Unit Components (Continued)

Part

Component

Number Description Model

Speaker 370-1579-xx Speaker (P/O

shroud assembly)

4-mm tape drive (optional)

8-mm tape drive (optional)

2.5-Gbyte QIC tape drive (optional)

TOD, 48T59Y, w/Carrier

SCSI cable (optional)

Diskette drive cable (optional)

2.1-Gbyte SCA, 7200 RPM, wide

Shroud assembly 540-2603-xx Shroud assembly All

370-2176-xx 4-Gbyte/8-Gbyte,

4-mm tape drive, light gray

370-1857-xx 8505XL 8-mm tape

drive 7/14 Gbytes

370-2018-xx 2.5-Gbyte QIC tape

drive, light grey

525-1417-xx TOD/NVRAM,

48T59Y, w/carrier

530-2137-xx SCSI cable All

530-2138-xx Floppy cable All

540-2730-xx

2.1-Gbyte SCA,7200 RPM, wide

All

Product Description 1-7

Page 38

Shroud

assembly

Processor

module (2 max.)

CD-ROM drive

Diskette drive (not visible)

Figure 1-3 System Unit Interior

Serial connector (2)

RS-432/RS-232

Power inlet

SBus card (4 max.)

FFB card (not visible) (desktop only)

Power supply

Disk drive access panel

Graphics/Video Output — UPA Slot

Power

on/standby

SCSI connector

switch

MII connector

Figure 1-4 System Unit Rear Panel

1-8 Ultra 2 Series Service Manual—May 1996

UPA slot

SBus slot 3

SBus slot 2

TPE

connector

Keyboard/Mouse

SBus slot 1 SBus slot 0

Parallel connector

connector

Audio connector (4)

Page 39

Part 2 — T roubleshooting

SunVTS page 2-1

Power-On Self-Test page 3-1

Troubleshooting Procedures page 4-1

Page 40

Page 41

SunVTS

This chapter contains an overview of the Sun Validation and Test Suite (SunVTS™) diagnostic tool/application. The following is the list of the SunVTS diagnostic topics presented in this chapter.

SunVTS Overview page 2-1

SunVTS Kernel page 2-2

SunVTS User Interface page 2-2

SunVTS TTY page 2-3

2.1 SunVTS Overview

The SunVTS software executes multiple diagnostic hardware tests from a single user interface and is used to verifying conﬁguration and functionality of most hardware controllers and devices. SunVTS operates primarily from the OpenWindows™ user interface, allowing test parameters to be set quickly and easily while a diagnostic test operation is being performed.

The SunVTS operation is provided in the documents listed in Table 2-1. These documents furnish detailed information about SunVTS and are available on the Solaris on Sun Hardware AnswerBook. The Solaris on Sun Hardware AnswerBook is provided on the SMCC Updates CD for the Solaris release being operated.

2-1

Page 42

Table 2-1 SunVTS Documentation

Title Part Number Description

SunVTS User’s Guide 802-5331 Describes the SunVTS

environment; starting and controlling various user interfaces; feature descriptions

SunVTS Test Reference Manual 802-5330 Describes each SunVTS test;

provides various test options and command line arguments

SunVTS Quick Reference Card 802-5329 Provides overview of vtsui

interface features

The main features of the SunVTS environment include:

• SunVTS kernel

• SunVTS user interface

• SunVTS teletype

2.1.1 SunVTS Kernel

The SunVTS kernel (vtsk) diagnostic tool controls all testing and operates in the OpenWindows background. When activated, vtsk probes the hardware conﬁguration of the system tested and responds to vtsui. vtsk coordinates execution of individual tests and manages the messages sent by these tests.

2.1.2 SunVTS User Interface

The SunVTS user interface (vtsui) diagnostic tool operates in the OpenWindows background. Upon activation, vtsui provides vtsk control, various user options, tests, and read-log ﬁles.

2-2 Ultra 2 Series Service Manual—May 1996

Page 43

2.1.3 SunVTS TTY

The vtstty diagnostic tool controls the vtsk from either a command shell or a terminal attached to a serial port. Most options available in vtstty have equivalent options in vtsui. vtstty is applicable to server conﬁgurations only.

SunVTS 2-3

Page 44

2-4 Ultra 2 Series Service Manual—May 1996

Page 45

Power-On Self-T est

This chapter contains procedures to initiate the Power-On Self-Test (POST) diagnostics. Procedures are also included to support pre-POST preparation, POST data interpretation, and bypassing POST diagnostics. The following is a list of the POST diagnostic topics presented in this chapter.

POST Overview page 3-2

Pre-POST Preparation page 3-2

Initilizing POST page 3-5

Max and Min Levels of POST page 3-6

POST Progress and Error Reporting page 3-14

Bypassing POST page 3-15

Additional Keyboard Control Commands page 3-15

System and Keyboard LEDs page 3-15

System Board Test page 3-18

3-1

Page 46

3.1 POST Overview

POST is useful in determining if a portion of the system has failed and should be replaced. POST detects approximately 85 percent of Ultra 2 series system faults and is located in the system board OpenBoot PROM (OBP). The setting of the diag-level switch determines the POST function. Table 3-1 lists the diaglevel switch settings for disabling POST (off), enabling POST Maximum (max), or enabling POST Minimum (min).

Table 3-1 Diag-Level Switch Settings

Diag-Level Switch Setting

Off No N/A N/A False

Max Yes (power-on) Enabled Enabled True

Min Yes (power-on) Disabled Enabled True

3.2 Pre-POST Preparation

Pre-POST preparation includes:

• Setting up a tip connection to another workstation or terminal to view POST

progress and error messages (see Section 3.2.1, “Setting Up a Tip Connection.“) Verifying baud rates between a workstation and a monitor or a workstation and a terminal (see Section 3.2.2, “Verifying the Baud Rate.“)

If a terminal or a monitor is not connected to serial port B (default port) of a workstation or server to be tested, the keyboard LEDs are used to determine error conditions (see Section 3.8, “System and Keyboard LEDs.“)

POST Initialization?

Serial Port A I/O

Serial Port A Error Output

Diag-Switch Setting

3-2 Ultra 2 Series Service Manual—May 1996

Page 47

3.2.1 Setting Up a Tip Connection

A tip connection permits a remote shell window to be used as a terminal to display test data of a system being tested. Serial port A or serial port B of a workstation or server being tested is used to establish the tip connection between the workstation or server being tested and another Sun Workstation monitor or TTY-type terminal. The tip connection is used in a SunOS window and provides features to help with the OBP.

To set up a tip connection:

1. Connect serial port A of the system being tested to another Sun

Workstation serial port B using a serial null modem cable (connect cable pins 2-3, 3-2, 7-20, and 20-7).

2. At the other Sun Workstation, check the /etc/remote ﬁle:

hardwire:\ :dv=/dev/term/b:br#9600:el=^C^S^Q^U^D:ie=%$:oe=^D:

Note – The example shows connection to serial port B, ttyb, the default port.

3. To use serial port A:

a. Copy and paste the following:

hardwire:\ :dv=/dev/term/b:br#9600:el=^C^S^Q^U^D:ie=%$:oe=^D:

b. Then modify as follows:

hardwirea:\ :dv=/dev/term/a:br#9600:el=^C^S^Q^U^D:ie=%$:oe=^D:

Power-On Self-T est 3-3

Page 48

4. In a shell tool window on the Sun Workstation, enter tip hardwire.

The system replies:

hostname% tip hardwire connected

Note – The shell window is now a tip window directed to the serial port of the Sun Workstation or server being tested. When power is applied to the system being tested, POST messages will be displayed in this window.

5. When POST is completed, disconnect the tip window as follows:

a. Open a shell tool.

b. Enter ps -a to view the active tip line and process ID (PID) number.

c. Enter kill -9 XXXX (where XXXX is the PID number) of the tip hardwire

process.

hostname% kill -9 PID# of tip hardwire process

3.2.2 Verifying the Baud Rate

To verify the baud rate between the system being tested and a terminal or another Sun Workstation monitor:

1. Open a shell tool.

2. Enter eeprom.

3. Verify the following serial port default settings as follows:

ttyb-mode = 9600,8,n,1 ttya-mode = 9600,8,n,1

Note – Ensure that the above settings are consistent with TTY-type terminal or workstation monitor settings.

3-4 Ultra 2 Series Service Manual—May 1996

Page 49

3.3 Initilizing POST

Initilize POST by setting the diag-switch NVRAM variable to true and then power cycling the system.

To set the diag-switch NVRAM variable to true and power cycle the system:

1. At the system prompt, enter: setenv diag-switch? true. Verify the

prompt, diag-switch? true, is displayed

2. At the Sun type-5 keyboard, power cycle the system by simultaneously

pressing the shift key and the power-on key (Figure 3-1). After a few seconds, press the power-on key.

3. Verify the following:

a. The display prompt disappears.

b. The monitor power-on indicator ﬂashes on and off.

c. The keyboard Caps Lock key indicator ﬂashes on and off.

4. When the POST is complete, set the diag-switch? variable to false

(default setting).

Power-On Self-T est 3-5

Page 50

Stop

key

Scroll Lock key indicator

Power-on key

Caps Lock

key indicator

Shift key

Figure 3-1 Sun Type-5 Keyboard

3.4 Max and Min Levels of POST

Two levels of POST are available: max (maximum level) and min (minimum level). The system initiates the selected level of POST based upon the setting of diag-level, a NVRAM variable.

The default setting for diag-level is max. An example of a max level POST output on serial port A is provided in Section 3.4.1, “Diag-Level NVRAM Variable Set to Max.“ An example of a min level POST output on serial port A is provided in Section 3.4.2, “Diag-level NVRAM Variable Set to Min.“

1. To set the diag-level variable to min, enter:

ok setenv diag-level min

D key

Compose

key indicator

Num Lock key indicator

3-6 Ultra 2 Series Service Manual—May 1996

Page 51

2. To return to the default setting:

ok setenv diag-level max

3.4.1 Diag-Level NVRAM Variable Set to Max

When the diag-level NVRAM parameter is set to max, POST enables an extended set of diagnostic-level tests. This mode requires approximately

2.5 minutes to complete with a dual CPU conﬁguration or approximately 1.5 minutes to complete with a single CPU conﬁguration. Code Example 3-1 identiﬁes a typical serial port A POST output with the diag-level NVRAM variable set to max.

Note – XXXX placeholders used in table entries represent numeric values that may change without notice.

Power-On Self-T est 3-7

Page 52

Code Example 3-1 Diag-Level NVRAM Variable Set to Max

ok Hardware Power ON Button Power ON Button Power ON

@(#)Sun Ultra 2 UPA/SBus X.X X.X FCS Test PROM Version X created XXXX/XX/XX XX:XX Clearing DTAGS 0000.0000.0008.0000 Done Probing keyboard Done %o0 = 0000.0000.0000.4001

Executing Power On SelfTest

0>@(#) Sun Ultra Enterprise 2 POST, FCS_Version XX.XX.XX X/XX/XX XX:XX XX 0>@(#) Sun Ultra Enterprise 2 POST, FCS_Version XX.XX.XX X/XX/XX XX:XX XX 0> UltraSparcX Version X.X 1> UltraSparcX Version X.X 0>Ecache Probe 1>Ecache Probe 0> Ecache size XXXX Kb 1> Ecache size XXX Kb 0> Ecache size XXXX Kb 1> Ecache size XXXX Kb 0>Ecache Tag Test 1>Ecache Tag Test 0>Ecache RAM Test 1>Ecache RAM Test 0>Ecache Address Line Test 1>Ecache Address Line Test 0>Initialize and Verify Ecache 1>Initialize and Verify Ecache 0>SC Initialization 0> SC_MP id=XXXX, UPA Number=X, Impl=X, Ver=X

3-8 Ultra 2 Series Service Manual—May 1996

Page 53

Code Example 3-1 Diag-Level NVRAM Variable Set to Max (Continued)

0>BMX Test 0> Checking BMX's 0>Probing Memory 0> Found Memory Group (Variable based upon memory configuration) 0> Found (Variable based upon memory configuration) of usable Main Memory 0>SIMM Group Base Addr Size Group Status 0> 0 00000000.00000000 08000000 00 0> 1 00000000.20000000 08000000 00 0> 2 00000000.40000000 08000000 00 0> 3 00000000.60000000 08000000 00 0>Quick Memory Test 0>Clear and Test Stack Memory SelfTest Initializing 0>Basic CPU Test 0> Instruction Cache Tag RAM Test 0> Instruction Cache Instruction RAM Test 0> Instruction Cache Next Field RAM Test 0> Instruction Cache Pre-decode RAM Test 0> Data Cache RAM Test 0> Data Cache Tags Test 0>MMU Enable Test 0> DMMU Registers Access Test 0> DMMU TLB DATA RAM Access Test 0> DMMU TLB TAGS Access Test 0> IMMU Registers Access Test 0> IMMU TLB DATA RAM Access Test 0> IMMU TLB TAGS Access Test 0> DMMU Init 0> IMMU Init 0> Mapping Selftest Enabling MMUs 0>FPU Register Test 0> FPU Registers and Data Path Test 0> FSR Read/Write Test 0>EPROMs Test 0> PROM Datapath Test 0>Serial Ports Test 0> Slavio Serial Ports Test 0>NVRAM TOD Test 0> M48T59 (TOD) Init 0> M48T59 (TOD) Functional Part 1 Test

Power-On Self-T est 3-9

Page 54

Code Example 3-1 Diag-Level NVRAM Variable Set to Max (Continued)

SelfTest Initializing 1>Basic CPU Test 1> Instruction Cache Tag RAM Test 1> Instruction Cache Instruction RAM Test 1> Instruction Cache Next Field RAM Test 1> Instruction Cache Pre-decode RAM Test 1> Data Cache RAM Test 1> Data Cache Tags Test 1>MMU Enable Test 1> DMMU Registers Access Test 1> DMMU TLB DATA RAM Access Test 1> DMMU TLB TAGS Access Test 1> IMMU Registers Access Test 1> IMMU TLB DATA RAM Access Test 1> IMMU TLB TAGS Access Test 1> DMMU Init 1> IMMU Init 1> Mapping Selftest Enabling MMUs 1>FPU Register Test 1> FPU Registers and Data Path Test 1> FSR Read/Write Test 1>Memory Test 0>Memory Test 1> Memory Clear Test 0> Memory Clear Test 1> Test being relocated into Cache 0> Test being relocated into Cache 1> Memory RAM (blk) Test 0> Memory RAM (blk) Test 1> Test being relocated into Cache 0> Test being relocated into Cache 1> Memory Stress Test 1> Test being relocated into Memory 0> Memory Stress Test 0> Test being relocated into Memory 0> Memory Address Line Test 1> Memory Address Line Test 0> Test being relocated into Memory

3-10 Ultra 2 Series Service Manual—May 1996

Page 55

Code Example 3-1 Diag-Level NVRAM Variable Set to Max (Continued)

0>Forcing ECC Faults Test 0> ECC CE Pattern Test 1>CPU Speed 1> CPU 1 Running at XXX MHZ.

1>CPU Functional Test 1> Mapping Selftest Enabling MMUs 1> SPARC Atomic Instructions Test 1> CPU Dispatch Control Register Test 1> CPU Softint Registers and Interrupts Test 1> CPU Tick and Tick Compare Registers Test 1> Uni-Processor Cache Coherence Test 1> UltraSPARC-2 Prefetch Instructions Test 0> ECC CE Check bit Test 1> *UltraSparc-1 module detected, tests skipped 1> Processor 1 is in slave-wait phase... 0> ECC UE Pattern Test 0> ECC UE Check bit Test 0>SysIO Registers Test 0> SysIO Regsiter Initialization 0> IOMMU Registers and RAM Test 0> Streaming Buffer Registers and RAM Test 0> SBus Control and Config Registers Test 0> SysIO RAM Initialization 0>SysIO Functional Test 0> Mapping Selftest Enabling MMUs 0> Clear Interrupt Map and State Registers 0> SysIO Interrupts Test 0> SysIO Timers/Counters Test 0> IOMMU Virtual Address TLB Tag Compare Test 0> Streaming Buffer Flush Test 0> DMA Merge Buffer Test 0>CPU Speed 0> CPU 0 Running at XXX MHZ. 0>Ecache Stress Test 0> Ecache Stress Test 0>APC Test 0> APC Registers Tests Test 0> APC DVMA Test

Power-On Self-T est 3-11

Page 56

Code Example 3-1 Diag-Level NVRAM Variable Set to Max (Continued)

0>Data Cache Test 0> Dcache Init 0> Dcache Enable Test 0> Dcache Functionality Test

0>FEPS Test 0> Parallel Port Registers Test 0> Parallel Port ID is: XxX 0> Parallel Port DVMA burst mode read/write Test 0> FAS366 Registers Test 0> ESP FAS366 DVMA burst mode read/write Test 0> FEPS Internal Loopbacks Test 0> Ethernet Transceiver Internal Loopbacks Test 0>CPU Functional Test 0> Mapping Selftest Enabling MMUs 0> SPARC Atomic Instructions Test 0> CPU Dispatch Control Register Test 0> CPU Softint Registers and Interrupts Test 0> CPU Tick and Tick Compare Registers Test 0> Uni-Processor Cache Coherence Test 0> UltraSPARC-2 Prefetch Instructions Test 0> *UltraSparc-1 module detected, tests skipped 0>Cross Calls Test (Dual CPU configuration only) 0> Cross Calls Test 0>Cache Coherency Test 0> Multi-Processor Cache Coherence Test 0> << POST COMPLETE(0) >>

3-12 Ultra 2 Series Service Manual—May 1996

Page 57

3.4.2 Diag-level NVRAM Variable Set to Min

When the diag-level NVRAM parameter is set to min, POST enables an abbreviated set of diagnostic-level tests. This mode requires approximately

1.5 minutes to complete with a dual CPU conﬁguration; or approximately 30 seconds to complete with a single CPU conﬁguration. Code Example 3-2 identiﬁes a serial port A POST output with the diag-level NVRAM variable set to min.

Note – XXXX placeholders used in table entries represent numeric values that may change without notice.

Code Example 3-2 Diag-Level NVRAM variable Set to Min

Hardware Power ON Button Power ON Button Power ON

@(#) Sun Ultra 2 UPA/SBus X.X X.X FCS Test PROM Version Xcreated XXXX/XX/XX XX:XX Clearing DTAGS 0000.0000.0008.0000 Done Probing keyboard Done %o0 = 0000.0000.0000.2001

Executing Power On SelfTest

0>@(#) Sun Ultra Enterprise 2 POST, FCS_Version XX.XX.XX X/XX/XXXX XX:XX XX 1>@(#) Sun Ultra Enterprise 2 POST, FCS_Version XX.XX.XX X/XX/XXXX XX:XX XX 0> UltraSparcX Version X.X 1> UltraSparcX Version X.X 0 << POST COMPLETE(0) >>

Power On Selftest Completed Status = 0000.0000.0000.0000 0000.XXXX.XXXX.XXXX XXXX.XXXX.XXXX.XXXX

Software Power ON

Power-On Self-T est 3-13

Page 58

3.5 POST Progress and Error Reporting

While POST is initialized, the Caps Lock key on the Sun type-5 keyboard ﬂashes on and off to indicate that POST tests are being executed. Additional POST progress indications are also visible when a TTY-type terminal or a tip line is connected between serial port B (default port) of the system being tested and a POST monitoring system.

If an error occurs during the POST execution, the keyboard Caps Lock key indicator stops ﬂashing and an error code is displayed using the Caps Lock, Compose, Scroll Lock, and Num Lock key indicators. The error code indicates a particular system hardware failure.

Note – An error code may only be visible for a few seconds. Observe the Caps Lock, Compose, Scroll Lock, and Num Lock key indicators closely while POST is active.

In most cases, POST also attempts to send a failure message to the POST monitoring system. Code Example 3-3 identiﬁes the typical appearance of a failure message. If a keyboard error code is displayed, determine the meaning of the error code by comparing the keyboard error code pattern to the corresponding error code meaning listed in Table 3-2 on page 3-17.

Note – The system does not automatically boot if a POST error occurs; it halts at the ok prompt to alert the user of a failure.

Code Example 3-3 Typical Error Code Failure Message

Power On Self Test Failed. Cause: SIMM U0701 or System Board ok

3-14 Ultra 2 Series Service Manual—May 1996

Page 59

3.6 Bypassing POST

POST may be disabled and thereby bypassed. To bypass POST:

1. Prior to powering on the system, press and hold the Stop and D keys on

the Sun type-5 keyboard.

2. With the Stop and D keys pressed, turn on the system by pressing the

power-on key (Figure 3-1 on page 3-6).

3.7 Additional Keyboard Control Commands

• Stop Key

If the diag-switch? variable is set to true and POST is not to be executed when the system is powered on, press and hold the keyboard Stop key and press the keyboard power-on key.

• Stop and N Keys

If the system NVRAM parameters are set to the original default settings, press and hold the Stop and N keys before powering on the system. Continue to hold the Stop and N keys until the system banner appears on the monitor.

3.8 System and Keyboard LEDs

The power LED, located at the chassis front, remains lighted when the system is operating normally. Figure 3-2 shows the location of the power LED.

Figure 3-2 Power LED

Power-On Self-T est 3-15

Power LED

Page 60

Keyboard light emitting diode (LED) patterns are activated as a result of POST. While POST is being executed, the Caps Lock key LED blinks and the remaining LEDs are off. If POST detects an error, a pattern is encoded in the LEDs to indicate the failure. If the POST detects no errors, all LEDs turn off before returning to the OpenBoot PROM (OBP) banner.

Figure 3-3 shows the location of the LED keys on the Sun type-5 keyboard. Table 3-2 deﬁnes the keyboard LED patterns.

Scroll Lock key indicator

Caps Lock

key indicator

Figure 3-3 Sun Type-5 Keyboard LEDs

3-16 Ultra 2 Series Service Manual—May 1996

Compose

key indicator

Num Lock key indicator

Page 61

Table 3-2 Keyboard LED Patterns

Caps Lock Compose Scroll Lock Num Lock Bit Value Meaning of Pattern

Blink Off Off Off x000

Off Off Off Off 0000

Off Off Off On 0001

Off Off On Off 0010

Off Off On On 0011

Off On Off Off 0100

Off On Off On 0101

Off On On Off 0110

Off On On On 0111

On Off Off Off 1000

On Off Off On 1001

(2)

POST in progress

POST successfully completed

DSIMM in slot U 0401/0501 failed

DSIMM in slot U 0601/0701 failed

DSIMM in slot U 0402/0502 failed

DSIMM in slot U 0602/0702 failed

DSIMM in slot U 0403/0503 failed

DSIMM in slot U 0603/0703 failed

DSIMM in slot U 0404/0504 failed

DSIMM in slot U 0604/0704 failed

System board failed

On Off On Off 1010

On Off On On 1011

On On Off Off 1100

On On Off On 1101

On On On Off 1110

On On On On 1111

Power-On Self-T est 3-17

(2)

No memory found

Reserved

Bad CPU0

Bad CPU1

Page 62

3.9 System Board T est

To initialize the POST system board test:

1. At the Sun type-5 keyboard:

2. Verify the keyboard LEDs light to conﬁrm the system is in the POST

3. If a failure occurs during POST, a keyboard key LED other than the Caps

4. If the Caps Lock key LED fails to ﬂash after the Stop and D keys are

a. Simultaneously press and hold the Stop and D keys.

b. While holding the Stop and D keys, press the power-on key.

mode and the keyboard Caps Lock key LED ﬂashes on and off to indicate the system has enabled the POST.

Lock key LED may light, indicating a failed system component (refer to Section 3.8, “System and Keyboard LEDs.“)

pressed, POST has failed (refer to Section 3.8, “System and Keyboard LEDs.“)

Note – The most probable cause of this type of failure is the system board.

However, optional system components could also cause POST to fail.

5. Before replacing the system board, remove any optional components such

as SBus cards and memory, and repeat the POST.

Note – Non-optional components such as: four DSIMMs in slots U401, U501,

U601, and U701; CPU module 0; the system board; the power supply; and the keyboard must be installed for POST to execute properly. Removing the optional system components and retesting the system isolates the possibility that those components are the cause of the failure.

6. To receive additional POST failure information, establish a tip connection

(Section 3.2.1, “Setting Up a Tip Connection.“)

3-18 Ultra 2 Series Service Manual—May 1996

Page 63

T roubleshooting Procedures

This chapter describes how to troubleshoot possible problems and includes suggested corrective actions.

Power-On Failure page 4-2

Video Output Failure page 4-3

Disk or CD-ROM Drive Failure page 4-3

Power Supply Test page 4-5

DSIMM Failure page 4-9

OpenBoot PROM On-Board Diagnostics page 4-11

4-1

Page 64

4.1 Power-On Failure

The following provides examples of power-on failure symptoms and suggested actions.

Symptom

The system unit does not power up when the keyboard power switch is pressed.

Action

Check the AC power cord. Ensure that the AC power cord is properly connected to the system unit and to the wall receptacle. Verify that the wall receptacle is supplying AC power to the system.

Press the power switch at the rear of the system unit. If the system powers on, the keyboard may be defective or the system unit is unable to accept the keyboard power-on signal. Power off the system unit and press the keyboard power-on switch again. If the system unit powers on, no further action is required. If the system unit does not power on, the keyboard may be defective. Connect a spare Sun type-5 keyboard to the system unit and press the power-on key.

If the wall receptacle AC power has been veriﬁed and the system unit does not power up, the system unit power supply may be defective. See Section 4.4, “Power Supply Test.”

Symptom

The system unit attempts to power up but does not boot or initialize the monitor.

Action

Press the power-on switch and watch the keyboard. You should see the keyboard LEDs light brieﬂy and hear a tone from the keyboard. If you do not hear a tone or if the keyboard LEDs do not light brieﬂy, the system unit power supply may be defective. See Section 4.4, “Power Supply Test.” If you hear a keyboard tone and see the keyboard LEDs light brieﬂy but the system unit still fails to initialize, refer to Section 3.9, “System Board Test.”

4-2 Ultra 2 Series Service Manual—May 1996

Page 65

4.2 Video Output Failur e

The following provides an example of a video output failure symptom and suggested action.

Symptom

No video at the system monitor.

Action

Check the AC power cord. Ensure that the AC power cord is connected to the monitor and to the wall receptacle. Verify that the wall receptacle is supplying AC power to the monitor. Check the video cable connection between the monitor and the system unit graphics card output port at the rear of the system unit. If the AC connection to the monitor is correct and the video cable is correctly connected, the system monitor or the system unit graphics card may be defective. Replace the monitor or the graphics card.

4.3 Disk or CD-ROM Drive Failure

The following provides examples of disk drive and CD-ROM drive failure symptoms and suggested actions.

Symptom

• A disk drive read, write, or parity error is reported by the operating system

or customer application.

• A CD-ROM drive read error or parity error is reported by the operating

system or customer applications.

Action

Replace the drive indicated by the failure message. The operating system identiﬁes the internal drives as identiﬁed in Table 4-1.

T r oubleshooting Procedures 4-3

Page 66

Table 4-1 Identiﬁcation of Internal Drives

Operating System Address Drive Physical Location and Target

c0t0d0s# SCSI Disk, target 0

c0t1d0s# SCSI Disk, target 1

c0t6d0s# CD-ROM drive, target 6

Note – The # symbol in the examples may be a number between 0 and 7 that describes the slice or partition on the drive.

Symptom

Disk drive or CD-ROM drive fails to boot or is not responding to commands.

Action

A defective system SCSI controller. Test the drive response to the probe-scsi command as follows:

1. At the system ok prompt:

a. Enter reset-all.

b. Enter probe-scsi.

2. If the disk drive responds correctly to probe-scsi, the message

identiﬁed in Code Example 4-4 on page 4-14 appears.

If the drives respond and a message is displayed, the system SCSI controller has successfully probed the devices. This is an indication that the system board is operating correctly. If one drive does not respond to the SCSI controller probe but the others do, replace the unresponsive drive.

If one internal disk drive is conﬁgured with the system and the probe-scsi test fails to show the device in the message, replace the drive. If the problem is still evident after replacing the drive, replace the system board. If replacing both the disk drive and the system board does not correct the problem, replace the internal disk drive cable and SCSI backplane assembly.

4-4 Ultra 2 Series Service Manual—May 1996

Page 67

4.4 Power Supply T est

The following provides instructions to test the power supply.

Note – Figure 4-1 and Table 4-2 identify power supply connector J3203. Figure 4-2 and Table 4-3 identify power supply connector J3204. Figure 4-3 and Table 4-4 identify power supply connector J3205. Figure 4-4 and Table 4-5 identify power supply connector J3206.

1. Using a volt-ohm-milliammeter (VOM), check the power supply output

Note – Power supply connectors J3203 through J3206 must remain connected

to the system board.

voltages as follows:

a. With the negative probe of the VOM meter placed on the ground

(Gnd) pin, position the positive probe on each power pin.

b. Verify +12 VDC, -12 VDC, +5 VDC, +3.3 VDC and +3.0 VDC.

c. If any power pin signal is not present with the power supply active

and properly connected to the system board, replace the power supply.

Pin 1

Figure 4-1 Power Supply Connector J3203

T r oubleshooting Procedures 4-5

Pin 2

Page 68

T able 4-2 Connector J3203 Pin Description

Pin Description

1 +3.3 VDC (A)

2 Return

1. +3.0 VDC (A) is a variable value dependent upon the CPU module type. Nominal value is 3.3 VDC. With CPU module absent, variable value is < 0.5 VDC.

Pin 1

Pin 4

Figure 4-2 Power Supply Connector J3204

Table 4-3 Connector J3204 Pin Description

Pin Description

1 +3.0 VDC (B)

2 Return +3.0 VDC (B)

3 +5.0 VDC

4 Return +5.0 VDC

1. +3.0 VDC (B) is a variable value dependent upon the CPU module type. Nominal value is 3.3 VDC. With CPU module absent, variable value is < 0.5 VDC.

4-6 Ultra 2 Series Service Manual—May 1996

Page 69

Pin 1

Figure 4-3 Power Supply Connector J3205

Table 4-4 Connector J3205 Pin Description

Pin Description

1 +3.3 VDC

2 +3.3 VDC

3 +3.3 VDC

4 Return

5 Return

6 Return

Pin 6

T r oubleshooting Procedures 4-7

Page 70

Pin 1

Pin 13

Figure 4-4 Power Supply Connector J3206

Table 4-5 Connector J3206 Pin Description

Pin Description Pin Description

1 +3.0 VDC (A) Sense 13 +3.0 VDC (A) -Sense

2 +3.0 VDC (A) VPROG 14 +3.0 VDC (A) Ovp Prog

3 +3.0 VDC (B) Sense 15 +3.0 VDC (B) -Sense

4 +3.0 VDC (A) VPROG 16 +3.0 VDC (B) Ovp Prog

5 Fan Speed 17 Power On Reset

Pin 12

Pin 24

6 +3.3 VDC +Sense 18 +3.3 -Sense

7 +5.0 VDC +Sense 19 +5.0 -Sense

8 +12.0 VDC 20 Return

9 +12.0 VDC 21 Return

10 -12.0 VDC 22 Interlock

11 On 23 Off

12 Temp Sense 24 Temp Sense

4-8 Ultra 2 Series Service Manual—May 1996

Page 71

4.5 DSIMM Failure

At times the operating system, diagnostic program, or POST may not display a DSIMM location (U number) as part of a memory error message. In this situation, the only available information is a physical memory address and failing byte (or bit). Table 4-6 lists the necessary information to locate a defective DSIMM.

Table 4-6 DSIMM Memory Address Map

DSIMM Number

0 16 Mbyte 0x0000_0000 to 0x03ff_ffff (ﬁrst double word)

0 32 Mbyte 0x0000_0000 to 0x07ff_ffff (ﬁrst double word)

0 64 Mbyte 0x0000_0000 to 0x0fff_ffff (ﬁrst double word)

0 128 Mbyte 0x0000_0000 to 0x1fff_ffff (ﬁrst double word)

1 16 Mbyte 0x0000_0000 to 0x03ff_ffff (second double word)

1 32 Mbyte 0x0000_0000 to 0x07ff_ffff (second double word)

1 64 Mbyte 0x0000_0000 to 0x0fff_ffff (second double word)

1 128 Mbyte 0x0000_0000 to 0x1fff_ffff (second double word)

2 16 Mbyte 0x2000_0000 to 0x23ff_ffff (ﬁrst double word)

2 32 Mbyte 0x2000_0000 to 0x27ff_ffff (ﬁrst double word)

2 64 Mbyte 0x2000_0000 to 0x2fff_ffff (ﬁrst double word)

2 128 Mbyte 0x2000_0000 to 0x3fff_ffff (ﬁrst double word)

3 16 Mbyte 0x2000_0000 to 0x23ff_ffff (second double word)

DSIMM Type Address Range (Physical Address [30:0])

3 32 Mbyte 0x2000_0000 to 0x27ff_ffff (second double word)

3 64 Mbyte 0x2000_0000 to 0x2fff_ffff (second double word)

3 128 Mbyte 0x2000_0000 to 0x3fff_ffff (second double word)

T r oubleshooting Procedures 4-9

Page 72

Table 4-6 DSIMM Memory Address Map (Continued)

DSIMM Number

4 16 Mbyte 0x4000_0000 to 0x43ff_ffff (ﬁrst double word)

4 32 Mbyte 0x4000_0000 to 0x47ff_ffff (ﬁrst double word)

4 64 Mbyte 0x4000_0000 to 0x4fff_ffff (ﬁrst double word)

4 128 Mbyte 0x4000_0000 to 0x5fff_ffff (ﬁrst double word)

5 16 Mbyte 0x4000_0000 to 0x43ff_ffff (second double word)

5 32 Mbyte 0x4000_0000 to 0x47ff_ffff (second double word)

5 64 Mbyte 0x4000_0000 to 0x4fff_ffff (second double word)

5 128 Mbyte 0x4000_0000 to 0x5fff_ffff (second double word)

6 16 Mbyte 0x6000_0000 to 0x63ff_ffff (ﬁrst double word)

6 32 Mbyte 0x6000_0000 to 0x67ff_ffff (ﬁrst double word)

6 64 Mbyte 0x6000_0000 to 0x6fff_ffff (ﬁrst double word)

6 128 Mbyte 0x6000_0000 to 0x7fff_ffff (ﬁrst double word)

7 16 Mbyte 0x6000_0000 to 0x63ff_ffff (second double word)

DSIMM Type Address Range (Physical Address [30:0])

7 32 Mbyte 0x6000_0000 to 0x67ff_ffff (second double word)

7 64 Mbyte 0x6000_0000 to 0x6fff_ffff (second double word)

7 128 Mbyte 0x6000_0000 to 0x7fff_ffff (second double word)

Each bank listed in Table 4-6 (Bank 0, Bank 1, Bank 2, and Bank 3) allows enough address space to accommodate four 16-Mbyte, four 32-Mbyte, four 64-Mbyte, or four 128-Mbyte DSIMMs. Unused addresses are mapped by the memory management hardware. Regardless of the installed DSIMM capacity, the memory starting address is as listed in Table 4-6.

4-10 Ultra 2 Series Service Manual—May 1996

Page 73

4.6 OpenBoot PROM On-Board Diagnostics

The following sections describe the OpenBoot PROM (OBP) on-board diagnostics. To execute the OBP on-board diagnostics, the system must be at the ok prompt.The OBP on-board diagnostics are listed as follows:.

watch-clock page 4-11

watch-net page 4-12

watch-net-all page 4-12

probe-scsi and probe-scsi-all page 4-13

test <Alias Name>, <Device Path>, -All page 4-16

FFB Card page 4-17

4.6.1 watch-clock

watch-clock reads a register in the NVRAM/TOD chip and displays the result as a seconds counter. During normal operation, the seconds counter repeatedly increments from 0 to 59 until interrupted by pressing any key on the Sun type-5 keyboard. Code Example 4-1 identiﬁes the watch-clock output message.

Code Example 4-1 watch-clock Output Message

ok watch-clock

Watching the 'seconds' register of the real time clock chip. Type any key to stop.

41 41 is an example. Counter

T r oubleshooting Procedures 4-11

It should be 'ticking' once a second.

increments from 0 to 59

Page 74

4.6.2 watch-net

watch-net monitors Ethernet packets broadcast on the Ethernet cable(s) connected to the system. Good packets received by the system are indicated by a period (.) displayed on the screen. Errors such as Framing error and Cyclic Redundancy Check (CRC) error are indicated with an X and an associated error description. Code Example 4-2 identiﬁes the watch-net output message.

Code Example 4-2 watch-net Output Message

ok watch-net Internal loopback test -succeeded. Transceiver check -- Using Onboard Transceiver - Link up. passed Using Onboard Transceiver Link up. Looking for Ethernet packets. '.' is a good packet.'X' is a bad packet. Type any key to stop.

4.6.3 watch-net-all

watch-net-all monitors Ethernet packets on any Ethernet interface installed

in the system. For example, if there is an SBus card installed in one of the system SBus slots, watch-net-all monitors the Ethernet transmissions occurring through that card. When the test is interrupted by pressing any key, watch-net-all searches to test the next Ethernet interface card installed in the system. Code Example 4-3 identiﬁes the watch-net-all output message.

4-12 Ultra 2 Series Service Manual—May 1996

Page 75

Code Example 4-3 watch-net-all Output Message

ok watch-net-all

/sbus@1f,0/SUNW, hme@e, 8c00000 Transceiver check -- Using Onboard Transceiver - Link up. passed Using Onboard Transceiver Link up. External loopback test -succeeded. Looking for Ethernet packets. '.' is a good packet. 'X' is a bad packet. Type any key to stop.

4.6.4

probe-scsi

probe-scsi transmits an inquiry command to internal and external SCSI

devices connected to the Ultra 2 series on-board SCSI interface. If the SCSI device is connected and active, the target address, unit number, device type, and manufacturer name is displayed. Code Example 4-4 identiﬁes the probe-scsi output message

and

probe-scsi-all

T r oubleshooting Procedures 4-13

Page 76

Code Example 4-4 probe-scsi Output Message

ok probe-scsi

This command may hang the system if a Stop-A or halt command has been executed. Please type resetall to reset the system before executing this command. Do you wish to continue? (y/n) Enter n

Enter reset-all Verify display blanks for approximately 5 seconds and returns to the ok prompt.

ok probe-scsi

This command may hang the system if a Stop-A or halt command has been executed. Please type resetall to reset the system before executing this command.

Do you wish to continue? (y/n) Enter y

Target 0 Unit 0 Disk

Target 1 Unit 0 Disk

Target 6 Unit 0 Removable Read Only device

4-14 Ultra 2 Series Service Manual—May 1996

TOSHIBA XM5301TASUN4XCD173506/22/95

Page 77

probe-scsi-all transmits an inquiry command to SCSI devices connected to the system SCSI host adapters. The ﬁrst identiﬁer listed in the display is the SCSI host adapter address in the system device tree followed by the SCSI device identiﬁcation data. Code Example 4-5 identiﬁes the probe-scsi-all output message.

Code Example 4-5 probe-scsi-all Output Message

ok probe-scsi-all

This command may hang the system if a Stop-A or halt command has been executed. Please type reset-all to reset the system before executing this command. Do you wish to continue? (y/n Enter n

Enter reset-all Verify display blanks for approximately 5 seconds and returns to the ok prompt.

ok probe-scsi-all

This command may hang the system if a Stop-A or halt command has been executed. Please type reset-all to reset the system before executing this command. Do you wish to continue? (y/n)

/sbus@1f,0/SUNW, fas@e, 8800000

Enter y

Target 0 Unit 0 Disk

Target 1 Unit 0 Disk

Target 6 Unit 0 Removable Read Only device

T r oubleshooting Procedures 4-15

TOSHIBA XM5301TASUN4XCD173506/22/95

Page 78

4.6.5 test <Alias Name>, <Device Path>, -

The test command, combined with a device alias or device path, enables a device self-test program. If a device has no self-test program, the message:

No selftest method for

test program for a device, enter the test command followed by the device alias or device path name. Code Example 4-6 identiﬁes the test output message. Table 4-7 lists test selection, and preparation.

Note – The ﬂoppy drive is selected as the test <alias name> example.

Code Example 4-6 test Output Message

ok test floppy

Testing floppy disk system. A formatted disk should be in the drive. Test succeeded.

<device name> is displayed. To enable the self-

All

selections, a description of the

4-16 Ultra 2 Series Service Manual—May 1996

Page 79

Table 4-7 Selected OBP On-Board Diagnostic Tests

Type of Test Description Preparation

Test screen Tests system video graphics hardware

and monitor

Test ﬂoppy Tests ﬂoppy drive response to commands A formatted diskette must be inserted

Test net Performs internal/external loopback test

of the system auto-selected Ethernet interface

Test ttya Test ttyb

Test keyboard Executes the keyboard selftest. Four keyboard LEDs should ﬂash once

Test-all Sequentially test

Outputs an alphanumeric test pattern on the system serial ports:ttya, serial port A; ttyb, serial port B

system-conﬁgured devices containing selftest.

Diag-switch? NVRAM parameter must be true for the test to execute.

into the drive. An Ethernet cable must be attached to

the system and to an Ethernet tap or hub or the external loopback test fails.

A terminal must be connected to the port being tested to observe the output.

and a message is displayed:

Present

Tests are sequentially executed in devicetree order (viewed with the command).

Keyboard

show-devs

4.6.6 FFB Card

The FFB card contains a built-in diagnostic test that is enabled through the OBP. The FFB card built-in diagnostic test veriﬁes basic graphics functionality without booting the operating system software.

To execute the built-in diagnostic test, the system must be at the OBP monitor ok prompt.

To activate the FFB card diagnostic:

1. Enter setenv diag-switch? true at the ok prompt. The

Note – If the FFB card is being used as the system display device, perform

Steps 2 and 4. If the FFB card is not being used as the system display device, perform Steps 3 and 4.

T r oubleshooting Procedures 4-17

diag-switch? = true prompt and the ok prompt are displayed.

Page 80

2. Enter test screen at the ok prompt.

Verifying Console Mode for Frame Buffer Board This will take a few minutes.

Verifying Frame Buffer Memory used for console mode This will take about two minutes.

a. A series of patterns are displayed.

b. FFB Frame Buffer functional test passed appears.

3. Enter test /SUNW,ffb at the ok prompt.

Verifying Console Mode for Frame Buffer Board This will take a few minutes.

Verifying Frame Buffer Memory used for console mode This will take about two minutes.

a. A series of patterns are displayed.

b. FFB Frame Buffer functional test passed appears.

4. When the FFB on-board diagnostics are completed, enter setenv diag-switch? false. The diag-switch? = false is displayed.

4-18 Ultra 2 Series Service Manual—May 1996

Page 81

Part 3 — Preparing for Service

Safety and Tool Requirements page 5-1

Powering On and Off page 6-1

Page 82

Page 83

Safety and T ool Requirements

This chapter provides a description of safety requirements, symbols, safety precautions, and tools required.

Safety Requirements page 5-2

Symbols page 5-2

Safety Precautions page 5-3

Tools Required page 5-5

5-1

Page 84

5.1 Safety Requirements

Before servicing any part of the Ultra 2 series system or server units, read the instructions and cautions in this section. This information explains how to work safely when servicing a Sun Microsystems product. For protection, observe the following safety precautions when setting up the equipment:

• Follow all cautions, warnings, and instructions marked on the equipment.

• Ensure that the voltages and frequency rating of the power receptacle match

the electrical rating label on the equipment.

• Never push objects of any kind through openings in the equipment. They

may touch dangerous voltage points or short components, resulting in ﬁre or electric shock.

• Refer servicing of equipment to qualiﬁed personnel.

5.2 Symbols

The following symbols mean:

Caution – Risk of personal injury and equipment damage. Follow the

5-2 Ultra 2 Series Service Manual—May 1996

instructions.

Warning – Hazardous voltages are present. To reduce the risk of electric shock and danger to personal health, follow the instructions.

Caution – Hot surfaces. Avoid contact. Surfaces are hot and may cause personal injury if touched.

Page 85

5.3 Safety Precautions

The following safety precautions mean:

5.3.1 Modiﬁcation to Equipment

Caution – Do not make mechanical or electrical modiﬁcations to the

5.3.2 Placement of a Sun Product

equipment. Sun Microsystems Incorporated is not responsible for regulatory compliance of a modiﬁed Sun product.

Caution – To ensure reliable operation of the Sun product and to protect it from overheating, openings in the equipment must not be blocked or covered. A Sun product should never be placed near a radiator or hot air register.

5.3.3 Power Cord Connection

Warning – Not all power cords have the same current ratings. Household extension cords do not have overload protection. Do not use household extension cords with the Sun product.

Warning – The power switch of this product functions as a standby type device only. The power cord serves as the primary disconnect device for the system. Be sure to connect the power cord into a grounded electrical receptacle that is nearby the system and is readily accessible. Do not connect the power cord when the power supply has been removed from the system chassis.

Safety and T ool Requir ements 5-3

Page 86

5.3.4 Electrostatic Discharge

Caution – The system board and disk drives contain electrical components that

are extremely sensitive to static electricity. Use proper ESD grounding techniques when handling components. Wear an antistatic wriststrap and use an ESD-protected mat. Store ESD-sensitive components in antistatic bags before placing it on any surface.

Caution – Use proper ESD grounding techniques when handling components. Wear an antistatic wrist strap and use an ESD-protected mat. Store ESD-sensitive components in antistatic bags before placing it on any surface.

5.3.5 Lithium Battery

Caution – On Sun system boards, a lithium battery is molded into the real-time

clock, SDS No. M48T59Y,MK48TXXB-XX, M48T18-XXXPCZ or M48T59W-XXXPCZ. Batteries are not customer replaceable parts. They may explode if mistreated. Do not dispose of the battery in ﬁre. Do not disassemble it or attempt to recharge it.

5-4 Ultra 2 Series Service Manual—May 1996

Page 87

5.4 T ools Required

The following tools are required to service the Ultra 2 series desktop workstation and the Ultra Enterprise 2 server.

• Phillips screwdriver

• Long-nose plier

• Grounding wrist strap

• Volt-ohm-milliammeter (VOM)

• Antistatic surface

Place ESD-sensitive components such as system board, circuit cards, disk drives, and TOD/NVRAM on an antistatic surface. The following items can be used as an antistatic surface:

• Bag used to wrap a Sun replacement part

• Shipping container used to package a Sun replacement part

• Inner side (metal part) of the system unit cover

• Sun ESD mat, part no. 250-1088 (may be purchased through your Sun sales

representative)

• Disposable ESD mat; shipped with replacement parts or optional system

features

Safety and T ool Requir ements 5-5

Page 88

5-6 Ultra 2 Series Service Manual—May 1996

Page 89

Powering On and Off

Powering On the System page 6-1

Powering Off the System page 6-2

6.1 Powering On the System

To power-on the system, proceed as follows.

1. Turn on power to all connected peripherals.

Note – Peripheral power is activated prior to system power so the system can

recognize the peripherals when it is activated.

2. Set the power on/standby switch to the on (I) position (Figure 6-1) or press the Sun Type-5 keyboard power-on key (Figure 6-2).

6-1

Page 90

Stop key

Power on/standby

Figure 6-1 Rear View of the System

Scroll Lock key indicator

Power-on

Caps Lock

key indicator

Figure 6-2 Sun Type-5 Keyboard

Shift key

D key

6.2 Powering Off the System

To power-off the system, proceed as follows.

Caution – Prior to turning off the system power, exit from the operating system. Failure to do so may result in loss of data.

1. Notify users that the system is going down.

2. Back up system ﬁles and data.

6-2 Ultra 2 Series Service Manual—May 1996

Compose

key indicator

Num Lock key indicator

Page 91

3. Halt the system.

4. Set the power on/standby switch to the stand-by (O) position (Figure 6-1) or press the Sun Type-5 keyboard power-on key (Figure 6-2).

5. Verify the following:

a. Front panel LED is extinguished.

b. System fans are disabled.

Warning – When the power on/standby switch is in stand-by (0) and the AC

power cord remains connected to a power receptacle, AC voltage is present in the power supply primary.

Caution – Disconnect the AC power cord from the AC receptacle prior to handling the power supply. When servicing system components other than the power supply, the AC power cord should remain connected to the AC receptacle.

6. Turn off the power to the monitor.

7. Disconnect cables to any external units.

Powering On and Off 6-3

Page 92

6-4 Ultra 2 Series Service Manual—May 1996

Page 93

Part 4 — Subassembly Removal

and Replacement

Internal Access page 7-1

Major Subassemblies page 8-1

Storage Devices page 9-1

Page 94

Page 95

Internal Access

This chapter explains how to remove the cover, attach the wrist strap, and replace the cover.

Removing the Cover page 7-2

Attaching the Wrist Strap page 7-3

Replacing the Cover page 7-4

7-1

Page 96

7.1 Removing the Cover

To remove the cover:

1. Power-off the system.

2. Loosen the screw securing the lock block (if installed) to the cover and

3. Pull the two top cover tabs to free the cover from the back panel.

4. Grasp the sides of the cover and proceed as follows:

back panel. Remove the lock block (Figure 7-1).

a. Lift the cover from the back panel (Figure 7-2).

b. When the cover clears the back panel, move the cover away from the

front panel to free it from the chassis and set aside.

Lock block

Figure 7-1 Location of Lock Block

7-2 Ultra 2 Series Service Manual—May 1996

Screw

Page 97

Figure 7-2 Removing the Cover

7.2 Attaching the Wrist Strap

Caution – Wear an antistatic wrist strap and use an ESD-protected mat when

handling components. When removing components other than the power supply, leave the power cord connected to both the system/server unit and the wall receptacle. When removing the power supply, attach the copper end of the wrist strap to the system/server unit chassis, vice power supply. Store ESD-sensitive components in antistatic bags before placing it on any surface.

Cover

Top cover tab (2)

To attach the wrist strap:

1. Unwrap the ﬁrst two folds of the wrist strap and wrap the adhesive side ﬁrmly against the wrist (Figure 7-3).

2. Peel the liner from the copper foil at the opposite end of the wrist strap. Attach the copper end of the wrist strap to the power supply top.

Internal Access 7-3

Page 98

Wrist strap

Copper end

Figure 7-3 Attaching the Wrist Strap

7.3 Replacing the Cover

To replace the cover:

1. Hold the cover at a 30-degree angle to the system unit.

2. Position the cover lip to the chassis lip.

3. Lower the cover onto the system unit so that the rear of the cover is supported by the chassis back panel (Figure 7-4).

4. Press down on both sides of the cover near the front edges until it ﬁrmly seats with the chassis back panel.

5. Press the tabs near the back panel.

7-4 Ultra 2 Series Service Manual—May 1996

Page 99

6. Position the lock block. Tighten the screw securing the lock block to the cover and back panel.

7. Power-on the system.

Top cover tab (2)

Cover

Figure 7-4 Replacing the Cover

Internal Access 7-5

Page 100

7-6 Ultra 2 Series Service Manual—May 1996