DEC DECstation 5000 Model 100 Series Manuale operativo

EK-370AA-MG-002

DECstation 5000/

DECsystem 5000

Model 200

MaintenanceGuide

digital equipment corporation

maynard, massachusetts

First printing, April 1990

Second printing, October 1990

The information in this document is subject to change without notice and should

not be construed as a commitment by Digital Equipment Corporation. Digital

Equipment Corporation assumes no responsibility for any errors that may appear

in this document.

The software described in this document is furnished under a license and may be

used or copied only in accordance with the terms of such license.

Digital Equipment Corporation assumes no responsibility for the use or reliability

of its software on equipment that is not supplied by Digital or its afﬁliated

companies.

Printed in U.S.A.

USA

This equipment generates, uses, and may emit radio frequency energy. The

equipment has been type tested and found to comply with the limits for a Class

A computing device pursuant to Subpart J of Part 15 of FCC Rules, which

are designed to provide reasonable protection against such radio frequency

interference. Operation of this equipment in a residential area may cause

interference in which case the user at his own expense will be required to take

whatever measures may be required to correct the interference.

The following are trademarks of Digital Equipment Corporation:

DEC PDP VAXBI

DECnet ThinWire VAXcluster

DECstation TURBOchannel VAXstation

DECsystem ULTRIX VMS

DECUS ULTRIX-32 VT

MicroVAX UNIBUS

MicroVMS VAX

Contents

Using This Guide ........................................... xvii

1 A Look at DECstation/DECsystem 5000 Model 200

Hardware

System Hardware Conﬁgurations . . . .................... 1–2

Basic System Hardware............................... 1–4

System Unit . . .................................... 1–4

System Unit Controls and Indicators................. 1–6

System Unit Connectors............................ 1–7

Hardware Options.................................... 1–9

Additional Memory Modules ........................ 1–9

Optional TURBOchannel Modules ................... 1–10

Drives ........................................... 1–10

Monitors and Terminals ............................ 1–10

Keyboard and Mouse . . ............................ 1–10

For Further Information . . ............................ 1–10

2 Service Operations

Using an Antistatic Kit . . . ............................ 2–2

Using an Alternate Terminal........................... 2–3

Removing and Installing the System Unit Cover .......... 2–5

To Remove the System Unit Cover ................... 2–6

To Install the System Unit Cover .................... 2–6

Removing and Installing the Front Cover Plate........... 2–7

To Remove the Front Cover Plate.................... 2–8

To Install the Front Cover Plate . .................... 2–8

iii

Removing and Installing a Serial Number Plate .......... 2–9

To Remove a Serial Number Plate ................... 2–9

To Install a Serial Number Plate .................... 2–9

Removing and Installing Loopback Connectors and

Terminators ......................................... 2–11

To Remove a ThinWire Terminator................... 2–12

To Install a ThinWire Terminator.................... 2–12

To Remove a ThickWire Loopback Connector .......... 2–13

To Install a ThickWire Loopback Connector ........... 2–13

To Remove a Communications Loopback Connector . . . . 2–14

To Install a Communications Loopback Connector. . . . . . 2–14

To Remove a SCSI Chain Terminator ................ 2–15

To Install a SCSI Chain Terminator ................. 2–15

To Remove a Communications Line Adapter .......... 2–16

To Install a Communications Line Adapter. ........... 2–16

Entering Console and Operating Modes ................. 2–17

To Enter Console Mode ............................ 2–18

To Enter Operating Mode .......................... 2–18

Using Console Command Passwords .................... 2–19

To Set or Change a Password . . . .................... 2–19

To Remove a Requirement for a Password . ........... 2–19

To Erase a Password You Do Not Know . . . ........... 2–20

Inserting and removing a clear-NVR jumper . . . . 2–21

Booting the System Software .......................... 2–23

Shutting Down the System Software .................... 2–24

3 Troubleshooting Tools

Using Tests ......................................... 3–2

Using Slot Numbers in Test Commands and Error

Messages ........................................ 3–2

Running Power-Up Self-Tests .......................... 3–3

Running Subtests .................................... 3–4

Running Individual Tests........................... 3–4

Running Test Scripts . . ............................ 3–5

Displaying Lists of Available Tests ................... 3–5

To display existing scripts that test an individual

module .................................... 3–6

Creating Test Scripts . . ............................ 3–7

Interpreting Test Error Messages . . . .................... 3–8

Using Error Logs .................................... 3–9

Examining Error Logs . ............................ 3–9

Distinguishing Event Types......................... 3–11

Memory error logs........................... 3–11

Error and status register error logs . ........... 3–13

System overheat error messages............... 3–14

For Further Error Log Information .................. 3–14

4 Identifying Failed FRUs

Troubleshooting Process . . . ............................ 4–2

Interpreting Test Results . . ............................ 4–3

Interpreting Error Messages That Appear on the

Monitor .......................................... 4–3

Interpreting LED Displays ......................... 4–3

Troubleshooting When the Power-Up Self-Test Does Not

Complete ........................................... 4–6

Using Error Logs to Troubleshoot. . . .................... 4–7

Memory Error Logs................................ 4–8

Error and Status Register Error Logs ................ 4–8

Overheat Error Messages .......................... 4–9

Troubleshooting When a Printer, Modem, or Alternate

Terminal Does Not Operate Properly .................... 4–10

For Further Information . . ............................ 4–11

5 Basic Hardware

System Module and Chassis ........................... 5–2

System Module and Chassis Hardware ............... 5–2

Troubleshooting the System Module.................. 5–3

Replacing a System Module and Chassis . . ........... 5–4

To remove and install an ESAR chip ........... 5–8

Memory Modules . .................................... 5–9

Memory Module Hardware ......................... 5–9

Troubleshooting the Memory Modules ................ 5–11

RAM board test . ............................ 5–11

Removing and Installing a Memory Module ........... 5–13

Keyboard and Mouse ................................. 5–15

Keyboard and Mouse Hardware . .................... 5–15

Troubleshooting the Keyboard and Mouse. . ........... 5–16

Keyboard test . . ............................ 5–17

Mouse test ................................. 5–17

Removing and Installing the Keyboard and Mouse . . . . . 5–18

To remove the keyboard and mouse and their

cables . .................................... 5–19

To install the keyboard and mouse and their

cables . .................................... 5–19

Power Supply........................................ 5–20

Power Supply Hardware ........................... 5–20

Troubleshooting the Power Supply ................... 5–21

Troubleshooting if the system unit has no

power . .................................... 5–21

Troubleshooting if the system unit overheats . . . . 5–23

Removing and Installing the Power Supply ........... 5–25

For Further Information . . ............................ 5–26

A Equipment Speciﬁcations

B Recommended Spares List

C Console Commands

Entering Console Commands .......................... C–2

Rules for Entering Console Commands ............... C–2

Conventions Used in This Chapter................... C–3

Some Terms Used in This Chapter................... C–3

Console Command Reference........................... C–4

Console Command Format Summary................. C–5

? Command . . .................................... C–7

boot Command.................................... C–7

Important information about typing the boot

command .................................. C–8

cat Command. .................................... C–9

cnfg Command.................................... C–10

General system conﬁguration displays.......... C–10

Base system conﬁguration displays . ........... C–12

Ethernet controller conﬁguration displays . . . . . . C–12

SCSI controller displays . . .................... C–13

Color frame-buffer graphics module conﬁguration

displays.................................... C–14

2D graphics accelerator module conﬁguration

displays.................................... C–15

3D graphics module conﬁguration displays...... C–15

d Command . . .................................... C–16

e Command . . .................................... C–17

erl Command . .................................... C–19

go Command . .................................... C–19

init Command .................................... C–20

ls Command . . .................................... C–20

passwd Command ................................. C–20

printenv Command ................................ C–21

restart Command ................................. C–21

script Command .................................. C–21

setenv Command.................................. C–22

sh Command . .................................... C–24

t Command . . .................................... C–25

test Command .................................... C–25

unsetenv Command . . . ............................ C–25

Console Command Error Messages . .................... C–26

D Test Commands and Messages

Locating Individual Tests in This Appendix . . . ........... D–2

System Module Tests ................................. D–4

Cache Data Test .................................. D–4

Cache data test error information . . ........... D–4

Cache Isolate Test ................................. D–6

Cache isolate test error messages. . . ........... D–6

Cache Reload Test ................................. D–7

Cache reload test error information . ........... D–7

Cache Segment Test . . . ............................ D–8

Cache segment test error messages . ........... D–8

Serial Line Silo Alarm Test ......................... D–10

Serial line silo alarm test error messages ....... D–10

Modem and Printer Test ........................... D–11

Modem and printer test error messages ........ D–11

Serial Line Silo Overﬂow Test. . . .................... D–12

Serial line silo overﬂow test error messages . . . . . D–12

Serial Line Single Silo Test ......................... D–14

Serial line single silo test error messages ....... D–14

Serial Line Mixed Silo Test ......................... D–16

Serial line mixed silo test error messages ....... D–16

Serial Line Transmit and Receive Test ............... D–18

Serial line transmit and receive test error

messages .................................. D–18

Error-Correcting Code (ECC) Generate Test ........... D–20

ECC generate test error codes ................ D–20

vii

Floating-Point Unit (FPU) Test. . .................... D–21

FPU test error messages . .................... D–21

RAM Select Lines Test . ............................ D–23

RAM select lines test error messages .......... D–23

Keyboard Test .................................... D–24

Keyboard test error messages ................. D–24

Mouse Test . . . .................................... D–25

Mouse test error messages ................... D–25

RAM Refresh Test ................................. D–26

RAM refresh test error messages . . . ........... D–26

Overheat Detect Test . . ............................ D–26

Overheat detect test error message . ........... D–26

Partial Write Test ................................. D–27

Partial write test error messages . . . ........... D–27

Nonvolatile RAM (NVR) test ........................ D–28

NVR test error messages . .................... D–28

Real-Time Clock (RTC) Period Test .................. D–29

RTC period test error messages ............... D–29

Real-Time Clock Register Test . . .................... D–30

Real-time clock register test error messages. . . . . D–30

Real-Time Test.................................... D–31

Real-time test error codes .................... D–31

Translation Lookaside Buffer (TLB) Probe Test ........ D–32

TLB probe test error messages ................ D–32

Translation Lookaside Buffer (TLB) Registers Test . . . . . D–33

TLB registers test and error messages ......... D–33

Memory Module Tests ................................ D–34

RAM Board Test .................................. D–34

RAM board test error messages ............... D–34

Floating 1/0 Memory Test .......................... D–36

Floating 1/0 memory test error messages ....... D–36

Zero Memory Utility . . . ............................ D–36

Power-Up LED Displays . . ............................ D–37

E Console Commands Generated by Version PDE3

ROM Chips

Information About Using Console Commands . ........... E–2

Rules for Typing Console Commands ................. E–2

Conventions Used in This Appendix ................. E–3

Displaying Information About System Hardware.......... E–5

viii

cnfg Command.................................... E–5

Conﬁguration summary . . .................... E–5

SCSI, Ethernet, and graphics conﬁgurations . . . . E–7

System and memory module conﬁgurations . . . . . E–9

Driver conﬁgurations ........................ E–10

scsi prb Command................................. E–11

Setting Environment Variables ......................... E–12

printenv Command .......................... E–15

setenv Command.................................. E–16

unsetenv Command . . . ............................ E–16

Writing Data into Memory. ............................ E–17

d (deposit) Command . . ............................ E–17

ﬁll Command . .................................... E–18

Setting Serial Line Connections ........................ E–19

disable Command ................................. E–19

Enable Command ................................. E–20

Examining Memory Contents .......................... E–21

dump Command .................................. E–21

e (examine) Command . ............................ E–23

ctrs Command .................................... E–24

Entering a Speciﬁc Address............................ E–24

Displaying Console Command Formats .................. E–25

help Command ................................... E–25

? Command . . .................................... E–25

t ? Command. .................................... E–26

Resetting the System ................................. E–26

init Command .................................... E–26

scsi rst Command ................................. E–26

Booting the System Software . . . .................... E–27

F Test Commands and Messages Produced by Version

PDE3 ROM Chips

System Module Tests ................................. F–2

FPUTest ........................................ F–2

FPU test error messages . .................... F–2

Serial Line Test ................................... F–4

Serial line test parameters and error messages . . F–4

Serial Line Silo Alarm Test ......................... F–6

Serial line silo alarm test error messages ....... F–6

Serial Line Single Silo Test ......................... F–7

Serial line single silo test error messages ....... F–7

Serial Line Silo Overﬂow Test. . . .................... F–8

Serial line silo overﬂow test error messages . . . . . F–8

Serial Line Mixed Silo Test ......................... F–9

Serial line single silo parameters and error

messages .................................. F–9

Modem and Printer Test ........................... F–10

Modem and printer test parameters and error

messages .................................. F–10

Keyboard and Mouse Test .......................... F–11

Keyboard and mouse test parameters and error

messages .................................. F–11

Real-Time Clock Register Test . . .................... F–12

Real-time clock register test error codes ........ F–12

Real-Time Test.................................... F–12

Real-time test parameters and error messages . . F–12

Real-Time Clock Period Test ........................ F–14

Real-time clock period test error messages . . . . . . F–14

Cache Data Test .................................. F–15

Cache data test parameters and error

messages .................................. F–15

Cache Isolate Test ................................. F–17

Cache isolate test parameters and error

messages .................................. F–17

Overtemp Detect Test . . ............................ F–18

Overtemp detect test error messages ........... F–18

Show Versions Utility . . ............................ F–19

Test Error Control Host Tests . . . .................... F–19

Show Error History Utility ......................... F–19

Script Acquire Utility . . ............................ F–20

Display Tests Utility . . . ............................ F–20

Memory Module Tests ................................ F–21

RAM Data Test ................................... F–21

RAM data test error messages ................ F–21

RAM Conﬁguration Test............................ F–22

RAM conﬁguration test error messages ......... F–22

Error Correcting Code Generate Test................. F–23

ECC generate test error messages . . ........... F–23

ECC Single Bit Error Fix Test . . .................... F–24

ECC SBE ﬁx test error messages . . . ........... F–24

Partial Write Test ................................. F–26

Partial write test error messages . . . ........... F–26

Build Bitmap Utility. . . ............................ F–27

Zero RAM Test ................................... F–27

RAM Refresh Test ................................. F–27

RAM Refresh test error messages . . ........... F–27

Ethernet Tests . . . .................................... F–28

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