Digital Equipment DEC 3000 500X AXP Operating and installation instructions

dt
DEC 3000
Model 500X AXP
Service Information
EK–HOTPI–SV. A01
April 1993
This guide is a support and reference document for Digital
service personnel who perform maintenance work on
the DEC 3000 Model 500X AXP workstation. The guide
is also intended for Digital customers who have a self-
maintenance agreement with Digital.
This guide is a supplement to DEC 3000 Model 500/500S
AXP Service Information.
This is a new document.
Digital Equipment Corporation

First Edition, April 1993
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.
Possession, use, duplication, or dissemination of the software described in this
documentation is authorized only pursuant to a valid written license from Digital or
the third-party owner of the software copyright.
No responsibility is assumed for the use or reliability of software on equipment that is
not supplied by Digital Equipment Corporation.
Copyright © Digital Equipment Corporation 1993
All Rights Reserved.
Printed in U.S.A.
The following are trademarks of Digital Equipment Corporation: Alpha AXP, AXP, DEC,
DECchip, DIGITAL, TURBOchannel, and the DIGITAL logo.

Contents
Preface
1 System Overview
System Overview ................................................. 1–1
Front View ...................................................... 1–6
Rear View ...................................................... 1–8
2 Configuration
Chapter Overview ................................................ 2–1
System Module Jumper Locations . . ................................. 2–2
Internal Cable Routing . . . ......................................... 2–4
Power Cable Routing ............................................. 2–5
3 Using the Console
Chapter Overview ................................................ 3–1
4 Diagnostic Testing
Chapter Overview ................................................ 4–1
5 SCSI Utilities
Chapter Overview ................................................ 5–1
6 Troubleshooting
Chapter Overview ................................................ 6–1
Power or Fan Failures ............................................. 6–2
7 Removing and Replacing FRUs
Chapter Overview ................................................ 7–1
FRU Locations . .................................................. 7–3
Top Cover ...................................................... 7–6
Front Bezel . . . .................................................. 7–8
Side Panels . . . .................................................. 7–10
Rear Bezel ...................................................... 7–12
Audio Module Assembly . . ......................................... 7–14
Lights and Switch Module . ......................................... 7–16
Power Supply . .................................................. 7–18
RZ
xx Disk Drives ................................................. 7–22
TURBOchannel Module . . ......................................... 7–26
Contents–iii

Regulator Module . . .............................................. 7–30
I/O Module ...................................................... 7–33
System Fans .................................................... 7–38
Impingement Fan . . . .............................................. 7–41
Memory Motherboard ............................................. 7–44
Memory Module .................................................. 7–47
System Module .................................................. 7–50
System and Power Cable Routing ................................... 7–57
Appendix A Upgrading Firmware
Overview . ...................................................... A–1
Appendix B Monitor Alignment Diagnostics
Overview . ...................................................... B–1
Appendix C LED Codes and Error/Status Messages
Overview . ...................................................... C–1
Appendix D Recommended Spares List
Recommend Spares List ........................................... D–1
Index
Figures
1–1 Front View ...................................................... 1–6
1–2 Rear View ...................................................... 1–8
2–1 System Module Jumper Locations.................................... 2–2
2–2 Internal Cabling .................................................. 2–4
2–3 Power Cabling ................................................... 2–5
6–1 Regulator Module Connections . ..................................... 6–6
6–2 Power Supply Connections ......................................... 6–7
7–1 FRU Locations (Right Side) ......................................... 7–4
7–2 FRU Locations (Left Side) .......................................... 7–5
7–3 Removing the Top Cover ........................................... 7–7
7–4 Removing the Front Bezel .......................................... 7–9
7–5 Removing the Side Panel........................................... 7–11
7–6 Removing the Rear Bezel .......................................... 7–13
7–7 Removing the Audio Module Assembly. . . ............................. 7–15
7–8 Removing the LSM Module ......................................... 7–17
7–9 Power Supply Cabling ............................................. 7–19
7–10 Removing the Power Supply . . . ..................................... 7–20
Contents–iv

7–11 Removing an RZ xx Drive . . ......................................... 7–23
7–12 Default SCSI ID Settings . . ......................................... 7–24
7–13 Removing a TURBOchannel Module. ................................. 7–27
7–14 Replacing a Slot Plate ............................................. 7–28
7–15 Removing the Regulator Module . . . ................................. 7–31
7–16 I/O Module Port Connections ........................................ 7–34
7–17 Removing the I/O Module (Side View) ................................ 7–35
7–18 I/O Module Jumper Locations ....................................... 7–37
7–19 Removing a System Fan (Bottom) . . ................................. 7–39
7–20 Removing the Impingement Fan ..................................... 7–42
7–21 Removing a Memory Motherboard . . ................................. 7–45
7–22 Memory Module Removal and Replacement . . ......................... 7–48
7–23 System Module Power Connections . ................................. 7–51
7–24 TURBOchannel Connections ........................................ 7–52
7–25 Removing the System Module ....................................... 7–53
7–26 System Module Jumpers Locations . . ................................. 7–55
7–27 Internal Cabling. .................................................. 7–57
7–28 Power Cabling . .................................................. 7–58
Tables
1–1 DEC 3000 Model 500X AXP System (Front) . . ......................... 1–7
1–2 DEC 3000 Model 500X AXP System (Rear) . . . ......................... 1–9
2–1 System Module Jumpers . . ......................................... 2–3
7–1 FRUTable....................................................... 7–3
7–2 I/O Module Jumper Locations ....................................... 7–37
7–3 System Module Jumper Locations. . . ................................. 7–56
D–1 Recommended Spares List ......................................... D–1
Contents–v

Preface
About This Guide
Purpose and
Audience This guide is a support and reference document for Digital service
personnel who perform maintenance work on the DEC 3000
Model 500X AXP workstation. The guide is also intended for
Digital customers who have a self-maintenance agreement with
Digital.
This guide is a supplement to DEC 3000 Model 500/500S AXP
Service Information.
Organization This guide is organized to match the DEC 3000 Model 500/500S
Service Information guide.
Four chapters and one appendix provide new information on the
Model 500X system:
 Chapter 1 provides an overview of the DEC 3000 Model
500X AXP CPU, memory subsystem, and network interface.
 Chapter 2 provides jumper configuration information for the
system module.
 Chapter 6 describes how to troubleshoot power and fan
failures.
 Chapter 7 describes how to remove and replace field
replaceable units (FRUs).
 Appendix D lists FRU part numbers.
Chapter 6 and the remaining chapters and appendices refer you
to DEC 3000 Model 500/500S Service Information:
 Chapter 3, Using the Console
 Chapter 4, Diagnostic Testing
Continued on next page
vii

About This Guide, Continued
 Chapter 5, SCSI Utilities
 Chapter 6, Troubleshooting
 Appendix A, Upgrading Firmware
 Appendix B, Monitor Alignment Diagnostics
 Appendix C, LED Codes and Error/Status Messages
Conventions
Used in This
Guide
This guide uses the following conventions:
Convention Meaning
Note Provides general information on the current topic.
Caution Provides information to prevent damage to
equipment and software.
Warning Provides information to prevent personal injury.
Key Keys and switches that are labeled appear in a
box. For example, Return indicates that you press
the Return key on your terminal.
{ } In command formats, braces contain required
information. The brackets {} are not part of the
syntax and should not be typed.
[ ] In command formats, brackets contain optional
information. The brackets [] are not part of the
syntax and should not be typed.
BOLD Bold type in examples indicates user input.
! Circled numbers provide a link between figures
and text.
Continued on next page
viii

About This Guide, Continued
Related
Documentation The following documents provide additional information about the
DEC 3000 Model 500X AXP workstation:
Document Order Number
DEC 3000 Model 500X AXP Owner’s
Guide EK–D5AXP–OG
DEC 3000 Model 500X AXP Options
Installation Guide EK–D5AXP–PG
ix

Chapter 1
SystemOverview
System Overview
System
Components The DEC 3000 Model 500X AXP system is a high-performance
deskside workstation. The system includes the following
components:
 System module
 I/O module
 Memory subsystem
 Power supply
 Regulator module
The DEC 3000 Model 500X AXP system provides support for
 Up to four SCSI internal disk drives
 Two 5.25-inch, half-height, removable SCSI devices
 Up to seven external SCSI devices
System Module The system module includes the following components:
 200 MHz DECchip (CPU)
 8K byte serial ROM
 512K byte backup cache
 Main memory controller
Continued on next page
1–1

System Overview,Continued
System Module
(continued)
 Controller for the TURBOchannel I/O bus
 8-plane two-dimensional graphics buffer logic for base
graphics
 256K byte flash ROM (system ROM)
 Three TURBOchannel option slots
I/O Module The I/O module includes the following components:
 TOY/NVR controller chip
 Two serial line controllers
 ISDN interface with audio I/O
 Two SCSI controllers
 Ethernet controller
 256K byte of flash ROM
 Two TURBOchannel option slots
 One power supply regulator slot
The DEC 3000 Model 500X AXP system provides interfaces to
 Serial lines
 Ethernet
 SCSI
 ISDN network
 Audio in/out
 Battery backed-up TOY
 High-performance two-dimensional graphics subsystem
Continued on next page
1–2

System Overview,Continued
Addresses generated by DMA devices in the I/O system may be
translated by a scatter/gather map. The scatter/gather map can
map 32K byte pages. This translation is an option, enabled on a
device-by-device basis.
Serial Lines: The serial line interface supports the following
equipment:
Equipment Function
Keyboard Connects to a 15-pin D-sub connector.
Mouse Shares 15-pin D-sub connector with keyboard.
Printer Connects to a 6-pin MMJ and is DEC–423
compliant.
Communication
port Connects to a 25-pin D-sub connector and supports full modem control.
Ethernet Interface: The Ethernet interface can connect to the
local area network (LAN) by using an attachment unit interface
(AUI, or thickwire) or 10BaseT twisted-pair cable. The selection
(thickwire or twisted pair) is software-controllable.
SCSI Interface: The SCSI interface consists of two separate
channels using two SCSI controller chips. These controller chips
connect to the TURBOchannel through an ASIC. The ASIC
buffers data to and from the SCSI controllers, providing 16
longword DMA bursts across the TURBOchannel for increased
bus efficiency.
ISDN Interface and Audio In/Out: An AMD 79C30A controller
chip provides an ISDN interface and telephone-quality audio
input and output. Jacks and connectors in the front of the unit
provide connections for a microphone and headphones.
Battery Backed-Up TOY: A battery backed-up time-of-year
(TOY) chip provides a time reference when the unit is powered
off.
Continued on next page
1–3

System Overview,Continued
Memory
Subsystem The memory subsystem includes the following:
 Four memory motherboards (MMB) that mount on the system
module. To have an operational memory subsystem, all four
MMBs must be present.
 The memory arrays are spread among the four MMBs. Each
bank of memory consists of eight memory modules, two on
each MMB.
The memory subsystem can support up to 256M bytes, with a
future expansion of up to 1 gigabyte of memory.
Continued on next page
1–4

System Overview,Continued
CPU/Cache The DEC 3000 Model 500X AXP system contains a single chip
processor and floating point running at 5.0 nanoseconds. The
processor is a superscalar, superpipelined implementation of the
Alpha AXP architecture.
The DEC 3000 Model 500X AXP system contains the following
direct-mapped caches:
 Icache (instruction cache)
 Dcache (data cache)
The system employs a second-level cache to help minimize the
performance penalty of misses and write-throughs to the primary
cache. This second level cache is a 512K byte, direct-mapped,
write-back cache with a block size of 32 bytes.
The cache is implemented on the system module using 32K byte
2 8 static RAMs. Theread bandwidth between the processor and
the second level cache is approximately 640 MB/s, and the write
bandwidth is 420 MB/s.
1–5

Front View
Front View Figure 1–1 shows the controls, lights, and devices on the front of
the DEC 3000 Model 500X AXP system.Table 1–1 describes their
function.
Figure 1–1 Front View
Line
In
1
2
3
4
5
LJ-02490-TI0
6
7
8
910
11
Continued on next page
1–6

Front View, Continued
Table 1–1 DEC 3000 Model 500X AXP System (Front)
This Feature... Lets You...
! , and " Removable media device
slots Access devices that use removable storage media, such as diskettes, compact disks, cassette tapes, or
cartridge tapes.
# DC OK light Check that all dc voltages are present on the power
supply.
$ On/Off switch Turn the system unit on (|) and off (0).
% Fan failure indicator light Check whether a fan has failed.
& Halt button Put the system in console mode.
' Diagnostic display View error codes that indicate potential system
problems.
( Microphone input jack Connect for a microphone.
) Speaker output jack Connect a speaker or headphone for audio output.
+> Telephone jack Connect a telephone handset.
+? Audio input jack Connect an audio input line.
1–7

Rear View
Rear View Figure 1–2 shows the location of switches, connectors, and
modules on the rear of the DEC 3000 Model 500X AXP system.
Table 1–2 describes their function.
Figure 1–2 Rear View
ISDN
Hz
S3
1
3
4
5
6
8
10
11
LJ-02982-TI0
2
1
0
3
4
5
2
7
9
12
13
Continued on next page
1–8

Rear View, Continued
Table 1–2 DEC 3000 Model 500X AXP System (Rear)
This Feature... Lets You...
! 10baseT port Connect a 10baseT (twisted-pair) Ethernet network
cable.
" AUI Ethernet port Connect an AUI (Thickwire) Ethernet network
cable.
# ISDN port Connect an ISDN network cable.
$ Printer/alternate console port Connect a printer or an alternate console.
% Keyboard/mouse port Connect a keyboard or mouse.
& Synchronous/asynchronous
communications port Connect a communications device, such as a modem.
' External SCSI port Connect small computer system interface (SCSI)
peripheral devices.
( Printer/alternate console switch Select the function of the printer/alternate console
port.
) Five TURBOchannel slots
3
Install TURBOchannel option modules. There are
two designated slots for the I/O module and three
designated slots for the system module.
+> Video refresh switch Select the correct video refresh rate (66Hz or 72Hz)
for the monitor.
+? Monitor port Connect the monitor video cable.
+@ System power port Connect the system power cord. The port is keyed.
3
The regulator module occupies reserved TURBOchannel slot 5 on the I/O module.
The regulator module is not a TURBOchannel option.
1–9