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MCS
LOGISTICS
ENGINEERING
Service
Maintenance
Manual
PRIORIS MTE
Server
K-MN-SD00000-04-JG00.A
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NIJMEGEN
THE NETHERLANDS
Copyright Digital Equipment Corporation
All rights reserved
November 1995
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November 1995
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 might appear in this document.
The software, if any, described in this document is furnished under a license and may be used or copied only in
accordance with the terms of such license. No responsibility is assumed for the use or reliability of software or
equipment that is not supplied by Digital Equipment Corporation or its affiliated companies.
Restricted Rights: Use, duplication, or disclosure by the U.S. Government is subject to restrictions as set forth
in subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause at DFARS 252.227-
7013.
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Copyright Digital Equipment Corporation
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All Rights Reserved
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The following are trademarks of Digital Equipment Corporation:
PRIORIS and the Digital logo.
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The following are third party trademarks:
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MS-DOS and Windows and Windows NT and Windows NT Server are trademarks of Microsoft Corp.
Novell and Netware are trademarks of Novell, Inc.
SCO and Open Desktop are trademarks of The Santa Cruz Operation, Inc.
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UNIX is a registered trademark of UNIX System Laboratories, Inc.
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All other trademarks and registered trademarks are the property of their respective holders.
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Created by:
MCS Logistics Engineering - Nijmegen
Printed in Ireland
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Digital PRIORIS MTE Server Table of Contents
Table of Contents
PREFACE..............................................................................................................................................................7
CHAPTER 1 PRODUCT DESCRIPTION ...................................................................................................... 9
RODUCT INTRODUCTION.......................................................................................................................................9
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Features..............................................................................................................................................................9
RODUCT MODELS INFORMATION........................................................................................................................10
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Prioris MTE Server.......................................................................................................................................... 10
CHAPTER 2 SERVER UTILITIES & CONFIGURATION.......................................................................11
Before Using the Flash Upgrade Utility ..........................................................................................................11
Recovery Diskette............................................................................................................................................11
Using the Flash Upgrade Utility......................................................................................................................11
Setup ................................................................................................................................................................ 13
Accessing Setup...............................................................................................................................................13
When to Use Setup...........................................................................................................................................13
Exiting Setup....................................................................................................................................................14
ONFIGURING THE SERVER..................................................................................................................................14
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The SCU .......................................................................................................................................................... 15
Before Using the SCU......................................................................................................................................16
SCI Files and CFG Files..................................................................................................................................16
Using the SCU .................................................................................................................................................16
Configure The Computer.................................................................................................................................17
Adding ISA Boards.......................................................................................................................................... 18
AND SETUP OPTIONS ....................................................................................................................................18
SCU
Additional Option Information........................................................................................................................23
System Base Memory......................................................................................................................................23
System Board Extended Memory....................................................................................................................23
User Definable Hard Disk Drive.....................................................................................................................23
Hard Drive 1/Hard Drive 2 .............................................................................................................................23
CPU Speed.......................................................................................................................................................23
CHAPTER 3 SERVICE PROCEDURES.......................................................................................................25
AFETY REQUIREMENTS.......................................................................................................................................25
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ECOMMENDED TOOLS........................................................................................................................................26
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Other Materials Needed...................................................................................................................................26
Special Tools Required.................................................................................................................................... 26
Remedial Diagnostic Test Software................................................................................................................26
ECO/FCO I
EMOVING THE SIDE PANEL.................................................................................................................................27
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ERVER COMPONENTS..........................................................................................................................................28
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XPANSION BOARDS.............................................................................................................................................29
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AIN LOGIC BOARD JUMPERS ............................................................................................................................. 30
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SVGA V
NFORMATION .....................................................................................................................................26
BIOS version information................................................................................................................................26
Main Logic Board Jumper Settings.................................................................................................................30
Main Logic Board Jumper Locations..............................................................................................................31
IDEO CARD (86C805) JUMPERS ............................................................................................................ 32
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Table of Contents Digital PRIORIS MTE Server
SVGA Video Card jumper settings.................................................................................................................32
SVGA Video Card jumper Locations ............................................................................................................. 32
OMPUTER MEMORY CONFIGURATIONS.............................................................................................................33
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Memory Configurations .................................................................................................................................. 33
ART REMOVAL AND REPLACEMENT PROCEDURES...........................................................................................34
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Removing Devices in the Lower Drive Bay Area........................................................................................... 34
Removing Devices in the Upper Drive Bay Area...........................................................................................36
Removing Fan / Speaker Assembly................................................................................................................. 37
Removing Main Logic Board..........................................................................................................................38
Removing Power Supply.................................................................................................................................39
Replacing the Server Battery...........................................................................................................................41
PGRADING PROCEDURES....................................................................................................................................42
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Upgrading the CPU.......................................................................................................................................... 42
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Secondary Cache Memory...............................................................................................................................43
Installing Video Memory upgrade on the SVGA Video Card........................................................................44
DDING MASS STORAGE DEVICES....................................................................................................................... 45
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CHAPTER 4 TROUBLESHOOTING............................................................................................................ 47
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NITIAL TROUBLESHOOTING ................................................................................................................................. 47
AND BOOT MESSAGES...............................................................................................................................48
POST
EEP CODES..........................................................................................................................................................49
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Beep Codes for Fatal Errors ............................................................................................................................ 49
Beep Codes for Nonfatal Errors ...................................................................................................................... 51
ERVER TROUBLESHOOTING................................................................................................................................51
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ISK DRIVE TROUBLESHOOTING .........................................................................................................................53
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ONITOR TROUBLESHOOTING ............................................................................................................................. 53
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LUS/FE ADVANCED DIAGNOSTICS ...............................................................................................................54
QAP
QAPlus/FE Error Messages............................................................................................................................. 54
CHAPTER 5 DEVICE MAPPING..................................................................................................................57
Computer Memory Map..................................................................................................................................57
I/O Address Map.............................................................................................................................................. 58
Computer Interrupt Levels .............................................................................................................................. 58
DMA Channel Assignment.............................................................................................................................. 59
CHAPTER 6 PASS / FAIL CRITERIA..........................................................................................................61
APPENDIX A SERVICE NOTES ................................................................................................................... 63
APPENDIX B USEFUL INFORMATION.....................................................................................................63
ELATED DOCUMENTATION.................................................................................................................................65
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N-LINE BULLETIN BOARDS................................................................................................................................65
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DOCUMENT FEEDBACK..............................................................................................................................67
PERSONAL NOTES ......................................................................................................................................... 69
EADERS COMMENTS...........................................................................................................................................73
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Digital PRIORIS MTE Server Product Description
Table of Figures
Figure 2 - 1 SCU Main Menu Options................................................................................................................15
Figure 3 - 1 Unlocking and Removing the Side Panels.......................................................................................27
Figure 3 - 2 Server Components..........................................................................................................................28
Figure 3 - 3 PRIORIS MTE Server Expansion Board Slots............................................................................... 29
Figure 3 - 4 Main Logic Board Jumper Locations..............................................................................................31
Figure 3 - 5 SVGA Video Card Jumper Locations.............................................................................................32
Figure 3 - 6 Main Logic Board Memory Banks locations..................................................................................33
Figure 3 - 7 Removing the Lower Drive Bay Assembly.....................................................................................34
Figure 3 - 8 Removing the Lower Drive Bay Devices........................................................................................35
Figure 3 - 9 Removing a Device from the Second Drive Bay.............................................................................36
Figure 3 - 10 Removing the Fan/Speaker Assembly........................................................................................... 37
Figure 3 - 11 Removing the Main Logic Board..................................................................................................38
Figure 3 - 12 Removing the ON/OFF Switch .....................................................................................................39
Figure 3 - 13 Removing the power plug..............................................................................................................39
Figure 3 - 14 Removing the screws at the rear....................................................................................................40
Figure 3 - 15 Removing the Power Supply .........................................................................................................40
Figure 3 - 16 Installing the Server Battery..........................................................................................................41
Figure 3 - 17 Upgrading the CPU........................................................................................................................42
Figure 3 - 18 Cache Memory Upgrade................................................................................................................43
Figure 3 - 19 Installing Video Memory upgrade.................................................................................................44
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Digital PRIORIS MTE Server Product Description
Preface
The Digital PRIORIS MTE Server Service Maintenance Manual is a troubleshooting guide that can be used
for reference when servicing the PRIORIS MTE Server series.
Digital Equipment Corporation reserves the right to make changes to the Digital PRIORIS MTE Server
without notice. Accordingly, the diagrams and procedures in this document may not apply to the computer(s) to
be serviced since many of the diagnostic tests are designed to test more than one product.
CAUTION
Digital recommends that only A+ certified engineers attempt to repair this equipment.
All troubleshooting and repair procedures are detailed to support subassembly/module
level exchange. Because of the complexity of the indivual boards and subassemblies, no
one should attempt to make repairs at component level or to make modifications to any
printed wiring board. Improper repairs can create a safety hazard. Any indications of
component replacement or printed wiring board modifications may void any warranty or
exchange allowances.
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Digital PRIORIS MTE Server Product Description
Chapter 1 Product Description
Product Introduction
The Prioris MTE servers are a family of high-performance, i486 processor-based, personal computers equipped
with the latest microprocessor technology. They can be used as stand-alone computers, as clients, or as servers
in a network environment.
Features
♦ Upgradable system comptible P24T ZIF socket
♦ 8 MB system RAM, Upgradable to 128 MB on motherboard
♦ 128 KB external cache memory (direct-mapped), expandable to 256 KB
♦ On-board IDE controller
♦ SVGA video card, 1 MB, ISA included
♦ Supports up to five storage devices
♦ Five full-size, 32 bit EISA slots and one slot which is either a VL-bus VESA slot or an EISA slot (for a
maximum of six EISA slots)
♦ Interfaces: two serial (RS-3232C) and one parallel (Centronics)
♦ Autosensing Power supply, 260 Watt
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Product Description Digital PRIORIS MTE Server
Product Models Information
Prioris MTE Server
Model CPU RAM Cache FDD HDD CD-ROM
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FR-PCT73-BV
FR-PCT73-BB
FR-PCT73-LE
FR-PCT74-BV
486DX2/
66 MHz
486DX2/
66 MHz
486DX2/
66 MHz
486DX4/
100 MHz
8 MB 128 KB 1.44 MB None None
16 MB 128 KB 1.44 MB 1 GB SCSI-2 Standard
16 MB 128 KB 1.44 MB 535 MB SCSI-2 600 MB double
speed
8 MB 128 KB 1.44 MB None None
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Digital PRIORIS MTE Server Server Utilities & configuration
Chapter 2 Server Utilities & Configuration
Before Using the Flash Upgrade Utility
When not familiar with utility programs and their uses, carefully read and understand the information
contained in this chapter before attempting to use the Flash Upgrade utility.
Have the following items available:
♦ Blank formatted diskette.
♦ Utilities diskette (supplied with the system).
♦ System Configuration Utility diskette (supplied with the system).
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Recovery Diskette
A recovery diskette should always be prepared before attempting to upgrade the BIOS. This diskette contains a
BIOS image and a program to load the image into flash memory. If a problem occurs during the programming
of BIOS into flash memory, a siren sounds when the Server is turned on. Insert the recovery diskette into drive
A or B and the original BIOS is put back in flash memory.
Using the Flash Upgrade Utility
Perform the following steps to create a recovery diskette, update the BIOS in the flash memory, and compare
the BIOS image file to the flash memory:
1) Insert the Utilities diskette (supplied with the system) into drive A.
2) Turn on the computer.
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3) At the MS-DOS prompt, type a:upgrade, and then press [Enter]. This invokes the Flash Upgrade utility.
The following menu items appear on the screen:
Make Recovery Diskette from Flash
Make Recovery Diskette from Image File
Upgrade Flash from Image File
Save Flash to Image File
Compare Flash to Image File
BIOS Information
Exit
For on-line help, press [F1].
4) Select the Make Recovery Diskette from Flash menu option. The message, "Please
select the diskette drive that will be used to create a Flash
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Recovery Diskette, or select "Cancel" to abort", appears on the screen.
5) Press the [Tab] or up and down arrow keys to highlight the desired diskette drive, then press [Enter].
Drive A is the default diskette drive. The message, "Insert a formatted diskette into
drive A. The contents of this diskette will be lost! and replaced
with system recovery software and the specified BIOS image. Select
"Continue" to start writing the recovery diskette, or "Cancel" to
abort," appears on the screen.
6) Insert a blank (formatted) diskette in drive A, and select Continue to proceed with the creation of a
recovery diskette. A message window notifies when it completes. Press any key to continue.
7) Remove the recovery diskette from drive A and store it in a safe place.
8) Insert the Utilities diskette in drive A.
9) Select the Upgrade Flash from Image File menu option. You are prompted to select the
BIOS image file to program into flash memory.
10) Press [Enter] to list a directory of .BIN (BIOS image) files. Select the desired image file.
The message, "The old BIOS will now be replaced by the new BIOS image.
Select "Program" to start, or "Cancel" to abort. Keep in mind that
programming a new BIOS into Flash memory requires a fair amount of
power. "If you are running on battery power you should have a full
charge!" appears on the screen.
11) Press [Enter] to proceed with the programming of the new BIOS into flash memory.
The message, "DO NOT TURN OFF THE POWER", appears on the screen.
The flash memory is erased, then the new BIOS is copied. Depending on the size of flash memory, the
programming takes 20-40 seconds. When the programming of the flash BIOS is complete, a message
briefly appears on the screen, then the system attempts to reboot.
12) Remove the Utilities diskette to allow the system to reboot without error. If an error occurs the flash
memory is corrupted and a siren sounds when the computer is rebooted. If this occurs, insert the recovery
diskette into drive A or B and the original BIOS is put back in flash memory.
If the computer does not reboot and the siren does not sound, turn off the computer. Set the main logic
board jumper J53 to recovery mode This procedure forces a BIOS recovery process. Refer to “Main
Logic board Jumper Locations”.
13) Insert the Utilities diskette into drive A, invoke the Flash Upgrade utility and select the Compare
Flash to Image File menu option. The message, "Select BIOS Image File Name
to compare against flash memory," appears on the screen.
14) Press [Enter] to display a list of .BIN (BIOS image) files. Select the .BIN file to be compared with the
flash memory. A message window displays whether the flash memory contains the same BIOS as the disk
file. Press any key to continue.
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Digital PRIORIS MTE Server Server Utilities & configuration
15) If applicable, select the Save Flash to Image File menu option. This option reads BIOS out
of flash memory and stores it on a disk file. A valid image file can be used with other upgrade commands
that need an image file. The default name for the image file is DEFAULT.BIN. You can type in a
different file name if you do not want to use the default name.
16) Select the Quit menu option to exit the Flash Upgrade utility.
17) Run the System Configuration Utility (SCU) to make sure the ROM Based Setup option is enabled.
Setup
Setup allows to select and permanently store information about the computer's installed hardware and software
in the battery-backed memory of the CMOS RAM. This information takes effect each time the computer boots
and can be changed each time you run Setup.
Accessing Setup
Use one of the following methods to access Setup:
♦ ROM Based Setup—Boot the computer and allow the POST to complete, then press [F1] to display the
initial Setup screen.
♦ SETUP.COM—Insert the Utilities diskette in drive A. At the MS-DOS prompt, type a:setup. The initial
Setup screen appears.
NOTE Values specified in Setup are overwritten when the System Configuration Utility (SCU)
is run, therefore do not use Setup to modify most configuration settings
next section, "When to Use Setup"
to make changes to the computer's configuration.
, for specific situations where Setup should be used
. Refer to the
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When to Use Setup
Since Setup values are overwritten by the SCU, it is recommended that Setup is used only if you:
♦ Need to enable a diskette drive.
♦ Do not have access to a diskette drive.
♦ Have only Industry Standard Architecture (ISA) expansion boards and will not be using the SCU.
♦ Need to disable or enable the ROM Based Setup option.
NOTE If Setup is used to make changes to the computer configuration, it is recommended to
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use the ROM Based Setup. Use SETUP.COM (on the Utilities diskette) only when
enabling of the ROM Based Setup option is desired.
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Exiting Setup
To exit Setup, press [Esc] to display the following menu options, then press one of the function keys indicated:
Key Function
Esc
F4
F5
F6
Continue with SETUP.
Save values- exit SETUP- and reboot.
Load default values for all pages.
Abort SETUP without saving values.
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NOTE If the POST fails to complete successfully, access Setup and check all settings.
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If necessary, press [F5] to load factory default values. Loading these values allows
the computer to operate with a minimum of options.
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Configuring The Server
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This chapter provides detailed information on how to configure the server using the System Configuration
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Utility (SCU). Digital recommends to use the SCU to initially configure the server and each time you add
hardware, remove hardware, or change server settings.
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If the server was delivered with factory-installed hardware and software, the server has already been
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configured.
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Digital PRIORIS MTE Server Server Utilities & configuration
The SCU
The SCU enables to setup and configure the server using the menu driven items shown in figure 2 - 1.
Depending on the installed hardware and level of server security required, you might have to access one or
more of these items to properly configure the server.
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Figure 2 - 1 SCU Main Menu Options
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Before Using the SCU
When familiar with utility programs and their uses, refer to the appropriate sections in this chapter to setup or
update the server’s configuration. Otherwise, carefully read and understand this chapter before attempting to
modify the server’s configuration settings.
Read any README files contained on the System Configuration Utility diskette for additional information.
In addition, have the following items readily available:
♦ A 1.44 MB formatted diskette.
♦ Configuration (CFG) files supplied with any installed EISA/PCI expansion boards.
Refer to the next section, "SCI Files and CFG Files", for more information about CFG files.
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♦ Kit installation instructions for any installed optional hardware.
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SCI Files and CFG Files
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The SCU creates a System Configuration Information (SCI) file each time the server is configured. This SCI
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file can be used on any PRIORIS MTE Server that are equally configured and can serve as a backup to the
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EISA configuration stored in NVRAM memory. The SCI file is maintained on the System Configuration
Utility diskette and has a default name of SYSTEM.SCI.
Configuration (CFG) files contain main logic board, EISA, PCI, and ISA expansion board vital characteristics
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and the server resources they require for proper operation. When additional EISA, PCI, or ISA expansion
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boards are installed, make sure to copy the CFG files (and overlays, if applicable) associated with the
expansion boards, to the System Configuration Utility diskette before attempting to configure the server.
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Refer to the option documentation for additional information.
Using the SCU
Use the SCU when experiencing problems with the hard disk and need to reconfigure the server. In addition,
the SCU should be used to modify the configuration after you add or remove hardware, or change server
settings.
If this is the first time using the SCU, it is recommended that to follow the procedures in the order given.
If this is a subsequent session, refer to the appropriate sections to update the server configuration.
To run the SCU, perform the following steps:
1) Install any optional hardware, for example disk drives, EISA expansion boards, and so on. Refer to
Chapter 3, "Service Procedures ".
2) Make a backup copy of the supplied System Configuration Utility diskette. Store the original in a secure
place and only use the backup copy when running the SCU. When unable to make a backup copy, use
the original diskette cautiously.
NOTE It is recommended not to install the SCU or any of its utilities on a hard disk drive.
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Running the SCU or any of its utilities from a hard disk drive might cause memory
conflicts between the SCU and application software. This specifically applies to
memory managers and Windows applications.
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Digital PRIORIS MTE Server Server Utilities & configuration
3) Insert the backup System Configuration Utility diskette into drive A and then soft boot (reset) the server.
The SCU introduction screen appears.
NOTE The SCU contains help pop-up screens for any selected menu item. Press [F1] at
anytime to display a help screen. Press [Esc] to remove a help screen.
4) Press [Enter] to display the SCU Welcome screen. If no configuration errors appear, the Welcome screen
displays information about the SCU. Press [Enter] to display the Main menu and proceed to Step 6.
If a configuration error appears, the Welcome screen displays information about the error and tells to
reconfigure the server. Press [Enter] to display the Main menu, select the Configure Computer
option, then select the View and Edit Details option. Make any changes as indicated by the
POST error message, and then select the Exit and Save option to end the SCU session and boot the
server so the changes take effect.
5) If applicable, select the Learn About Configuring The Computer option to get familiar
with the SCU.
6) If applicable, set the current server time and date using the Set Time and Set Date menu options.
7) Using the Maintain System Configuration Diskette option, copy the CFG files supplied
with any EISA, PCI, or ISA expansion board.
8) Select the Configure Computer option to configure the server.
9) If applicable, select the Maintain System Configuration Diskette option to create,
change, or update SCI or CFG files.
10) To end the SCU session select the Exit From This Utility option.
11) If applicable, install the operating system and any application software.
Refer to the operating system and application software documentation for installation information.
Configure The Computer
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When accessing this menu item for the first time, it is recommended to follow the menu items listed below in
the order given. If this is a subsequent session, refer to the appropriate menu item to update the server
configuration.
Step 1: Important EISA Configuration Information
Step 2: Add or remove boards
Step 3: View or edit details
Step 4: Examine required switches
Step 1: Important EISA Configuration Information
This menu item provides basic EISA configuration information and how it differs from ISA configuration.
These screens are available at any time during the configuration process by pressing [F1] and by selecting
EISA configuration from the help menu.
Step 2: Adding or Removing Boards
This menu item provides a list of boards and options in the configuration. You can add, move, and delete
boards from this list until it shows all the installed boards and options in the server, including the boards not yet
physically installed.
The SCU automatically detects any EISA expansion boards installed on the server and configures the server
accordingly. The SCU does not automatically detect ISA expansion boards.
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Step 5: Save and Exit
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Server Utilities & configuration Digital PRIORIS MTE Server
Step 3: View or Edit Details
This menu item allows to examine and change the setting of each function and the resource allocated for those
functions. When editing a function or resource in this step, you might have to change the switch or jumper
setting.
Step 4: Examine Required Switches
This menu item allows to view settings (switches and jumpers) that need to be manually set and software
drivers that need to be installed. These recommendations must be followed exactly, otherwise the server will
not work properly.
Step 5: Save and Exit
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This menu item allows to exit the SCU program with or without saving the configuration settings.
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Adding ISA Boards
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Perform the following steps to add ISA boards to the server configuration:
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1) Select "Step 2: Adding and Removing Boards", and update the list of boards and options to include any
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ISA boards to be installed in the server.
2) Select "Step 4: Examine Required Switches", to check the required switch and jumper settings of the ISA
boards.
3) Select "Step 5: Save and Exit", to save the configuration and exit the SCU.
4) Turn off the server and install the ISA boards.
CAUTION
Do not attempt to install boards while the server is turned on.
SCU and Setup Options
The following tables list the options that are available in the BIOS Setup utility and in the SCU (View or Edit
details). Use the keyboard function keys to help select options, change values, and display help information.
NOTE The ROM BIOS Setup utility and the SCU contain the same options as those listed.
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Digital recommends to use the SCU to configure the server each time you add
hardware, remove hardware, or change server settings.
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Digital PRIORIS MTE Server Server Utilities & configuration
SCU and Setup Options (continued)
Menu Fields Settings Comments
System
Processor
Type
System
Processor
Clock
System Base
Memory
System
Extended
Memory
System BIOS
Onboard
Diskette
Controller
Diskette
Drive A
Diskette
Drive B
Exchange
Diskette
Drives
Boot from
Diskette Drive
A
Onboard IDE
Hard Disk
Controller
Hard Drive 1
Hard Drive 2
User Definable
Hard Drives
Not user
selectable
Not user
selectable
Not user
selectable
(640 KB)
Not user
selectable
Not user
selectable
Enabled
Disabled
3½-inch
720 KB
3½-inch
1.44 MB
3½-inch
2.88 MB
5¼-inch
360 KB
5¼-inch
1.2 MB
Not installed
Enabled
Disabled
Enabled
Disabled
Enabled
Disabled
Drive types
1-49
Not Installed
Type
48 and 49
Type 2 and 3
Displays the currently installed processor type.
Displays the currently installed processor clock speed.
Sets the size of base (conventional) memory.
Displays the current amount of extended memory.
Displays the BIOS version.
Enabled when it is the primary interface to the diskette drive.
Disabled if an external diskette controller performs the interfacing to the
diskette drives.
Selects the size and density of 3½-inch diskette drives.
Selects the size and density of 5¼-inch diskette drives.
Disables the selected diskette drive.
Enables the logical exchange of physical diskette drive designations.
Disables the logical exchange of physical diskette drives.
Enables diskette drive A as a logical boot device.
Disables diskette drive A as a logical boot device.
Enables the on-board IDE controller interface; the controller can be used
as the primary interface to the bootable hard disk.
Disables the on-board IDE controller when it is not being used and
another disk controller is the primary interface to the bootable drive.
Enables hard drive size and specific parameters from a predetermined list
of drive types. Drive types 2 and 3 or 48 and 49 are user definable for
hard drives not listed in the BIOS drive table.
Disables the selected hard disk.
See Hard Drive 1 and Hard Drive 2.
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SCU and Setup Options (continued)
Menu Fields Settings Comments
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Boot from
Hard Disk
Drive C
Serial Port 1
Serial Port 2
Parallel Port
Video Type
Shadow Video
BIOS ROM
Shadow
C8000hCFFFFh
Shadow
D0000hD7FFFh
Shadow
D8000hDFFFFh
Primary
Cache Control
Enabled
Disabled
Enabled at
COM1, COM2,
COM3, COM4
Disabled
Enabled at base
address 378h,
278h, 3BCh
(compatible)
Disabled
VGA or EGA
CGA 40
columns
CGA 80
columns
Monochrome
Enabled
Disabled
Enabled
Disabled
Enabled
Disabled
Enables IDE drive C as a logical boot device.
Disables IDE drive C as a logical boot device.
Enables any desired on-board serial port.
Disables any desired on-board serial port at the specified base address.
Enables on-board printer port.
Disables any desired on-board printer port.
Allows to specify the type and mode of the video module that is installed.
Enables the shadowing request for Video BIOS ROM. When shadowing
of this area is enabled, caching is also enabled.
Disables the shadowing request for Video BIOS ROM.
Disables the shadowing request for optional ROM.
Enables the shadowing request for optional ROM.
Enables the microprocessor's internal (primary) cache. Enabling the
cache controller significantly improves computer performance by
reducing the average number of wait states seen by the microprocessor.
Disables the microprocessor's internal cache.
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Digital PRIORIS MTE Server Server Utilities & configuration
SCU and Setup Options (continued)
Field Settings Comments
Secondary
Cache Control
Cache System
BIOS ROM
Power-On
Password
CPU Speed
NumLock at
Boot
Keyboard
Concurrent
Refresh
Reserved
System
Resources
86C805/928
GUI
Accelerator
Vertical
Retrace
Interrupt
Enabled
Disabled
Enabled
Disabled
Not Installed
Installed
Fast
Slow
Off
On
Not Installed
Installed
Disabled
Enabled
Not user
selectable
Not Installed
Graphics:
Color or Mono
Graphics:
Color
Graphics:
Mono
Text:
Color or Mono
Text: Color
Text: Mono
Interrupt
Enabled
Interrupt
Disabled
Enables the secondary (external) cache (if installed).
Disables the secondary cache.
Enables the caching request for system BIOS ROM.
Disables the caching request for system BIOS ROM.
A power-on password is not set.
A power-on password is set. You are prompted for the password when
the system is rebooted.
CPU operates at its full rated speed.
CPU operates at 8 MHz.
Turns off the keyboard's NumLock feature each time you boot the
computer.
Turns on the keyboard's NumLock feature each time you boot the
computer.
Set this option to Not Installed if you plan to operate the computer as a
network server without a keyboard installed.
Enables to check the keyboard during the POST.
Disables the concurrent refresh feature of the chip set.
Enables the concurrent refresh feature of the chip set.
Configuration File and Overlay Version.
Select Not Installed only if the VID 805/928 VGA module GUI
Accelerator is not going to be installed with the system.
Allows to specify the presence of the VID 805/928 VGA module.
Enables the resource allocation at vertical retrace interrupt - IRQ 2(9).
Disables the resource allocation at vertical retrace interrupt - IRQ 2(9).
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Server Utilities & configuration Digital PRIORIS MTE Server
SCU and Setup Options (continued)
Field Settings Comments
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Monitor Type
(805)
640x480@
60Hz/NI
640x480@
72Hz/NI
800x600@
60Hz/NI
800x600@
72Hz/NI
800x600@
56Hz/NI
1024x768@
43Hz/I
1024x768@
60Hz/NI
1024x768@
72Hz/NI
1280x1024@
43Hz/I
Enables to select the resolution and refresh rate (vertical
synchronization) of the optional local bus VGA module. This setting
should match the capabilities of the monitor (see the monitor
documentation for specifications).
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Monitor Type
(928)
640x480@
60Hz/NI
640x480@
72Hz/NI
800x600@
60Hz/NI
800x600@
72Hz/NI
800x600@
56Hz/NI
1024x768@
43Hz/I
1024x768@
60Hz/NI
1024x768@
72Hz/NI
1280x1024@
43Hz/I
1280x1024@
60Hz/NI
1600x1280@
43Hz/I
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Digital PRIORIS MTE Server Server Utilities & configuration
Additional Option Information
SCU options are explained in further detail in the next section.
System Base Memory
System base memory is automatically detected by the POST. It selects 640 KB unless an expansion board has
been installed that uses the address space between 512 KB and 640 KB.
System Board Extended Memory
This function indicates the amount of extended memory (memory addressable beyond 1 MB) resident on the
system board and an optional memory module (if installed). The amount of extended memory is automatically
detected and cannot be modified using SCU.
Extended memory installed on EISA or ISA boards is not included in the quantity of extended memory
indicated.
User Definable Hard Disk Drive
System BIOS contains a table of drive types for hard disk drives. Of these, the number of sectors, cylinders,
heads, and so on can be defined for types 2 and 3 or types 48 and 49. Choose types 48 and 49, unless the Local
Area Network (LAN) software does not recognize them. Otherwise, use types 2 and 3. Note that this option
does not apply to SCSI devices.
Hard Drive 1/Hard Drive 2
This option must be configured to determine drive-specific parameters. Choose the drive type for the drive
from types 1 and 47. If hard drive 1 is not installed, then select "Disabled".
User-definable types 2, 3, 48, and 4 9 require to enter specific parameters (cylinders, heads, precompensation,
landing zone, and sectors). Either types 2 and 3 or types 48 and 49 can be selected as user-definable. IDE
drives are usually selected as drive type 1. Because certain operating systems do not recognize BIOS drive
type parameters above type 47, the parameters for drives types 48 and 49 should be aliased to types 2 and 3
using this option.
CPU Speed
This option determines the speed used by the computer each time you turn it on or reboot it. Fast is the normal
speed and causes the CPU to run at its rated speed. Slow (equivalent to 8 MHz) is used to reduce the effective
CPU speed to be compatible with some speed-dependent application programs. If an application program does
not run correctly at full speed, try changing the CPU speed to slow.
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Digital PRIORIS MTE Server Service Procedures
Chapter 3 Service Procedures
Safety Requirements
WARNING
Static electricity collects on non-conductors such as paper, cloth, or plastic. A static
discharge can be damaging even though you often cannot see or feel it.
The following safety precautions must be observed to insure product and personal safety and prevent damage to
circuit boards and/or components:
♦ Always wear an ESD wrist strap when handling ESD sensitive material and be sure it is properly
connected.
♦ Keep circuit boards and components away from non-conductors.
♦ Keep clothing away from circuit boards and components.
♦ Keep circuit boards in anti-static bags.
♦ Be cautious when AC power is exposed when working on an assembly.
♦ Always use an ISOLATION TRANSFORMER when diagnosing any terminals, monitors or power
supplies when AC power is applied.
♦ Be cautious of very high voltage potentials when working with monitors.
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There should be an approved insulating mat (for technician safety) in front of any workbench where monitors,
terminals or power modules are being serviced when power is applied.
NOTE Do NOT wear ESD straps when working on terminals,monitors or power supplies
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when AC power is applied. This is to avoid the hazard of electrical shock.
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Service Procedures Digital PRIORIS MTE Server
Recommended Tools
The following tools will be needed for servicing Digital Server systems. Note that test equipment must be
calibrated:
♦ Multimeter (4 1/2 digit)
♦ A philips screwdriver
♦ An antistatic wrist strap
Other Materials Needed
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Cleaning agent should be an all purpose cleaner that is used in-house.
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Special Tools Required
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None.
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Remedial Diagnostic Test Software
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♦ QAPLUS/fe , Server Advanced Diagnostic Software, latest version.
E
Supplier information:
Diagsoft, Inc.
5615 Scotts Valley Drive, Suite 140
Scotts Valley, California 95066, U.S.A.
Voice: 1-408-438-8247
Fax: 1-408-438-7113
Internet: http://www.diagsoft.com (Diagsoft, Inc. homepage)
ECO/FCO Information
BIOS version information
Refer to the Digital DECpc Bulletin Board Support (telephone number: xx33 92960312) for the latest
information on BIOS upgrades.
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Digital PRIORIS MTE Server Service Procedures
Removing the Side Panel
Before removing the side panel, perform the following:
1) Turn off power to all external devices connected to server.
2) Turn server off.
3) Unplug power cord from wall outlet.
4) Disconnect power cord and monitor cord from server.
WARNING
You might injure yourself or damage the server if you attempt to remove the side panel
before unplugging the ac and monitor power cords.
5) To unlock the side panels, turn the chassis key clockwise to a horizontal position (see Figure 3 - 1).
6) To remove the side panels, pull each one toward the rear of the server and then lift away.
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Figure 3 - 1 Unlocking and Removing the Side Panels
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Service Procedures Digital PRIORIS MTE Server
Component
Power supply
Three 5¼-inch half-height drive bays
3½-inch diskette drive
Fan / Speaker assembly
Main logic board
One EISA or VL-Bus local bus expansion slot (VESA compliant) and five EISA expansion
slots7Dedicated local bus video slot
Server Components
Legend
1
2
3
4
5
6
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Figure 3 - 2 Server Components
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Digital PRIORIS MTE Server Service Procedures
Expansion Boards
The PRIORIS MTE Server contains seven expansion board slots for installing up to five EISA expansion
boards. The PRIORIS MTE Server features one dedicated local bus video slot, one EISA or VL-bus slot
(VESA).
An Industry Standard Architecture (ISA) board can be installed in EISA slots.
Expansion Slot Designation Description
EISA slots 1 to 5 Supports extended industry standard 32-bit EISA expansions boards.
EISA / VL-Bus slot Supports extended industry standard 32-bit EISA expansions board or
VL-Bus local expnasion boards.
Local Bus Video Slot Supports industry standard 32-bit.
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Figure 3 - 3 PRIORIS MTE Server Expansion Board Slots
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Service Procedures Digital PRIORIS MTE Server
Main Logic Board Jumpers
Jumper pins allow to set specific computer parameters. They are set by changing the pin location of jumper
blocks. A jumper block is a small plastic-encased conductor (shorting plug) that slips over the pins. Place the
jumper over the two pins designated for the desired setting. Press the jumper evenly onto the pins. Be careful
not to bend the pins.
Note that the square pin of each jumper block is pin 1.
CAUTION
Do not touch any electronic component unless you are safely grounded. Wear a
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Main Logic Board Jumper Settings
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Setting in bold italics are factory default settngs.
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Feature Description Setting
M
BIOS top 8K reprogram
CPU Select
T
E
RESET switch Enable
Parallel port type Printer
Factory test/clear password
Display type
CPU Clock input
Cache size select
VL-Bus write wait state
grounded wrist strap or touch an exposed metal part of the server chassis. A static
discharge from your fingers can result in permanent damage to electronic components.
Reserved for factory use only J43, open
P24T
486 DX or DX2
Disable
Bi-directional
Normal Operation
Factory test/clear password
Color
Mono
50 MHz
40 MHz
33 MHz
25 MHz
128 KB
256 KB
Zero wait write
One wait write
J52, pin 1 and 2 jumpered
J52, pin 2 and 3 jumpered
J46, jumpered
J46, open
J20, pin 1 and 2 jumpered
J20, pin 2 and 3 jumpered
J23, open/parked
J23, jumpered
J25, jumpered
J25, open
J34, J35, J36, J37 open
J36 jumpered, 34, 35, 37 open
J35 open, 34, 36, 37 jumpered
J36 open, 34, 35, 37 jumpered
J29, J30, J31 pin 1 and 2
jumpered
J29, J30, J31 pin 2 and 3 jumpered
J51, pin 1 and 2 jumpered
J51, pin 2 and 3 jumpered
NOTE J20 is functional for 87c311 only. When the I/O system uses 87c312, this jumper is
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ignored.
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Digital PRIORIS MTE Server Service Procedures
Main Logic Board Jumper Locations
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Figure 3 - 4 Main Logic Board Jumper Locations
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Service Procedures Digital PRIORIS MTE Server
SVGA Video Card (86C805) Jumpers
The PRIORIS MTE models comes standard with a SVGA Video Card with 1 MB video memory.
SVGA Video Card jumper settings
Setting in bold italics are factory default settngs.
Jumper Description Setting
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J1
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J2
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J10
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SVGA Video Card jumper Locations
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VGA - Contr. Main Loigc Board IRQ9: Enabled
Disabled
VGA: Enabled
Disabled
Video RAM : 1 MB
2 MB
In
Out
1 - 2 Jumpered
2 - 3 Jumpered
1 - 2 Jumpered
2 - 3 Jumpered
Figure 3 - 5 SVGA Video Card Jumper Locations
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Digital PRIORIS MTE Server Service Procedures
Computer Memory Configurations
Adding more memory allows the PRIORIS MTE Server to run larger, more complicated software and to run it
faster.
The computer contains at least 8 MB of memory. You can increase the memory up to 128 MB.
4 MB, 16 MB or 64 MB single in-line memory modules (SIMMs) can be added. The PRIORIS MTE Server
requires 36-bit SIMMs that have an access time of 70 ns or less.
Memory Configurations
Bank 0 Bank 1 Bank 2 Bank 4 Total
4 MB 4 MB
4 MB 4 MB 4 MB
4 MB 4 MB 4 MB 4 MB
4 MB 16 MB
4 MB 4 MB 16 MB
4 MB 16 MB 16 MB
4 MB 4 MB 16 MB 16 MB
16 MB
16 MB 16 MB
16 MB 16 MB 16 MB
16 MB 16 MB 16 MB 16 MB
64 MB
64 MB 64 MB
8 MB
12 MB
16 MB
20 MB
24 MB
36 MB
40 MB
16 MB
32 MB
48 MB
64 MB
64 MB
128 MB
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Figure 3 - 6 Main Logic Board Memory Banks locations
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Service Procedures Digital PRIORIS MTE Server
Part Removal and Replacement Procedures
Removing Devices in the Lower Drive Bay Area
The lower drive bay area holds two 3½-inch devices, typically a diskette drive and a hard drive. To remove the
devices in the lower drive bay area, remove the entire drive bay assembly from the server and then remove the
devices from the assy.
Perform the following steps:
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1) Turn off the server. Disconnect any external devices and unplug the power cord from the wall outlet.
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2) Unplug the power cord and monitor cord from the back of the server.
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3) Unlock and remove the left side panel.
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4) Remove the cables from the devices in the lower drive bay.
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5) Note the position of the cables so that they can be reconnected to the correct devices later.
6) Lift up on the retaining clip at the rear top of the drive bay assembly and slide the assembly to the rear of
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the server (A, Figure 3 - 6).
7) Remove a device by removing the screws on the side and sliding the device out of the lower bay
assembly.
CAUTION
Be sure to support the drive bay assembly so that it does not fall and damage circuit
boards.
A
DEC00600
Figure 3 - 7 Removing the Lower Drive Bay Assembly
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Digital PRIORIS MTE Server Service Procedures
Removing Devices in the Lower Drive Bay Area (continued)
DEC0 0601
Figure 3 - 8 Removing the Lower Drive Bay Devices
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Service Procedures Digital PRIORIS MTE Server
Removing Devices in the Upper Drive Bay Area
To remove a device from the upper drive bay area perform the following steps:
1) Turn off the server. Disconnect any external devices and unplug the power cord from the wall outlet.
Unplug the power cord and monitor cord from the back of the server.
2) Unlock and remove both side panels.
3) Disconnect power and ribbon cables.
4) Remove screws securing device to chassis.
5) Slide device drive out of the upper drive bay.
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DEC00594-3
Figure 3 - 9 Removing a Device from the Second Drive Bay
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Digital PRIORIS MTE Server Service Procedures
Removing Fan / Speaker Assembly
To remove the Fan/Speaker Assembly perform the following steps:
1) Turn off the server. Disconnect any external devices and unplug the power cord from the wall outlet.
Unplug the power cord and monitor cord from the back of the server.
2) Unlock and remove the left side panel.
3) Remove fan and speaker connections.
4) Depress tabs.
5) Pull Fan/Speaker assembly forward.
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Figure 3 - 10 Removing the Fan/Speaker Assembly
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Service Procedures Digital PRIORIS MTE Server
Removing Main Logic Board
To remove the main logic board:
1) Turn off external devices and server.
2) Disconnect external devices, ac power, and monitor power.
3) Unlock and remove side panel.
4) Remove all connectors.
5) Remove CPU module retaining bracket and CPU module.
6) Remove all expansion boards.
7) Remove mounting screws.
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8) Carefully rotate the main logic board out, bottom first.
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Figure 3 - 11 Removing the Main Logic Board
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Digital PRIORIS MTE Server Service Procedures
Removing Power Supply
To remove the power supply:
1) Turn off external devices and server.
2) Disconnect external devices, ac power, and monitor power.
3) Unlock and remove side panel.
4) Remove metal shield.
5) Remove the upper and lower devices.
6) Step 1: Remove ON/OFF switch (see Figure 3 - 12).
7) Step 2: Remove screw from the Powerplug and pull out the power plug (see Figure 3 - 13).
8) Step 3: Remove four screws from the rear. (See Figure 3 - 14 ).
9) Step 4: Carefully remove power supply from server. (See Figure 3 - 15).
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Figure 3 - 12 Removing Figure 3 - 13 Removing the power plug
the ON/OFF Switch
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Service Procedures Digital PRIORIS MTE Server
Removing Power Supply (continued)
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Figure 3 - 14 Removing the screws at the rear
Figure 3 - 15 Removing the Power Supply
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Digital PRIORIS MTE Server Service Procedures
Replacing the Server Battery
The server battery runs the server clock and retains any setup information when it is turned off. If the server
ever fails to retain the correct date, time, or configuration settings when it turned on, replace the server’s
battery.
To replace the battery, perform the following steps:
1) Record the server’s configuration settings using the SCU.
2) Turn off the server. Disconnect any external devices and unplug the power cord from the wall outlet.
Unplug the power cord and monitor cord from the back of the server.
3) Unlock and remove the left side panel.
4) Remove the battery.
5) Install the new battery.
CAUTION
Make sure pin 1 on the battery is correctly aligned with the pin 1 location on the socket
(A, Figure 3 - 16). The pin 1 location on the battery is designated by a white dot in the
lower left corner of the battery. Incorrect installation may cause faulty server operation.
6) Replace and lock the left side panel.
7) Reconnect the power cord and monitor cord to the back of the server. Reconnect any external devices and
plug the power cord into the wall outlet.
8) Reboot and run the SCU and configure the server using the recorded configuration settings from step 1.
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Figure 3 - 16 Installing the Server Battery
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Service Procedures Digital PRIORIS MTE Server
Upgrading Procedures
Upgrading the CPU
To upgrade the CPU in the computer, perform the following steps:
1) Turn off the computer. Disconnect any external devices and unplug the power cord from the wall outlet.
Unplug the power cord and monitor cord from the back of the system box.
2) Unlock and remove the left side panel.
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3) Lift up the release lever and move the lever to the right.
4) Remove the CPU chip and note the location of pin 1. The pin 1 location on the chip is designated by a
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white dot and a notch on the lower right corner of the chip (Figure 3 - 17).
5) Install the new CPU chip. Make sure pin 1 on the chip is aligned with pin 1 on the main logic board.
6) Return the release lever to its original position.
7) Replace and lock the left side panel.
8) Connect the power cord and monitor cord to the back of the system box. Connect any external devices
and plug the power cord into the wall outlet.
Figure 3 - 17 Upgrading the CPU
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Digital PRIORIS MTE Server Service Procedures
Secondary Cache Memory
The DECpc 40 0 MTE Series computer is equipped with 128 KB direct-mapped write back secondary cache
memory. The secondary cache memory is designed to improve the performance of the microprocessor.
An additional 128 KB cache memory option is available to increase secondary cache memory to 256 KB. This
kit consists of four 20 ns, 32 KB × 8 SRAM DIP chips installed in sockets provided on the main logic board.
CAUTION.
Make sure pin 1 on each SRAM chip is correctly aligned with the pin 1 location on the
socket (Figure 3- 18). The chip is correctly installed when the notched side of both the
chip and the socket are aligned. Incorrect installation may cause faulty computer
operation.
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Figure 3 - 18 Cache Memory Upgrade
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Service Procedures Digital PRIORIS MTE Server
Installing Video Memory upgrade on the SVGA Video Card
The PRIORIS MTE models comes standard with a SVGA Video Card with 1 MB video memory. This amount
can be increased to 2 MB by installing a 1 MB video memory VRAM chips in the designated socket on the
SVGA Video card.
To install the video memory upgrade chips:
1) Turn off the computer.
2) Disconnect external devices, ac power, and monitor power.
3) Unlock and remove cover.
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4) Remove SVGA video card and install the VRAM chips the in upgrade sockets.
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5) Make sure pin 1 on chip is aligned with pin 1 on socket.
6) Set all appropriate SVGA card jumpers. Refer to “SVGA video card jumper settings” .
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8) Connect external devices and restore power.
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Figure 3 - 19 Installing Video Memory upgrade
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Digital PRIORIS MTE Server Service Procedures
Adding Mass Storage Devices
The PRIORIS MTE Server has the following two drive bay areas. Mass storage devices such as hard disk
drivers, floppy diskette drives, CD-ROM drives and tape backup systems are installed in these drive bay areas.
♦ Upper drive bay area—This area has room for three 5¼-inch half-height devices. Each drive bay is
equipped with a removable panel to accommodate devices requiring front panel access. The bottom two
bays of this area can be used to mount one full-height drive. The drive rails are removable to
accommodate a full-height device.
♦ Lower drive bay area—This area has a drive bay assembly that holds a 3½-inch floppy diskette drive
(standard on all DECpc 400 MT Series computers) and one hidden 3½-inch half-height device that needs
no front panel access. This hidden bay is typically used for mounting the system's primary hard disk
drive.
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Digital PRIORIS MTE Server Troubleshooting
Chapter 4 Troubleshooting
The following pages provide initial troubleshooting procedures and tables listing specific problems, probable
causes, and recommended actions to take if the computer fails after configuring or installing optional hardware
or software.
Refer to the documentation supplied with additional options when experiencing problems with specific options
you have installed.
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Initial Troubleshooting
Follow these general procedures to troubleshoot the computer:
♦ Press [Ctrl] + [Alt] + [Del]. If the computer fails to boot, turn it off, wait until all hard disk drives spin
down completely, and then turn it back on.
♦ If the POST detects an error, take the appropriate steps to correct the problem. After the problem has
been resolved, restart the computer.
♦ Run the BIOS Setup utility.
♦ Make sure all necessary changes have been made to the CONFIG.SYS and AUTOEXEC.BAT files.
♦ Make sure all necessary video, printer, and application device drivers are properly installed.
♦ Ensure that all cables and connections are secure.
♦ Run the QAPLUS/fe advanced diagnostic software.
♦ If these steps do not identify and/or correct the problem, perform the specific troubleshooting procedures
appropriate to the circumstances.
NOTE If you need to return a failed component, pack it in its original container and return it to
Digital for service.
Fill in the appropriate fields of the Part Exchange Form with the relevant error information!!
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Troubleshooting Digital PRIORIS MTE Server
Message
No timer tick
Shutdown failure
Timer 2 failure
Keyboard stuck key
Keyboard controller
Keyboard clock line
Keyboard data line
Keyboard failure
Mouse failure
640 KB base memory
0 KB extended memory
Time-of-day clock
stopped
Invalid configuration
information
Diskette drive failure
Hard disk controller
failure
POST and Boot Messages
The POST displays messages to alert to errors in hardware, software, and firmware or to provide operating
information about the computer.
Each time the POST displays a message on the screen, the computer's speaker beeps twice. If an error occurs
before the monitor is initialized, specific beep codes sound to alert to a problem. The table below lists a general
grouping of system messages arranged by the POST countdown number. In addition, each message is
accompanied by text describing the message and in most cases a recommended solution to the problem.
NOTE
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Italics
values, and so on. These messages can differ at each occurrence.
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POST Countdown
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Number
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240 0007
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200 0001
S
190 0009
M
180 0010
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170 0041
160 —
150 0017
100 0018
090 0011
080 0015
indicate variable parts of a message such as memory addresses, hexadecimal
Message
Number
Solution
Replace main logic
board.
Replace main logic
board.
Replace main logic
board.
Check the keyboard
connection. If the
connection is secure, the
keyboard or keyboard
controller might have
failed. Replace
keyboard.
Check the mouse
connection. If the
problem persists, replace
the mouse.
—
Replace RTC.
Run the SCU.
Run the SCU. Check all
connections. If the
problem persists, replace
the diskette drive.
Run the SCU. Check all
connections. If the
problem persists, replace
the controller.
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Digital PRIORIS MTE Server Troubleshooting
POST and Boot Messages (continued)
POST Countdown
Number
080 0016
060 0021 xxxx0h optional ROM
050 0019
040 0020
020 —
010 —
000 —
Message
Number
Message Solution
Hard disk 0 failure Run the SCU. Check all
bad checksum = xx
Time-of-day not set Run SCU and set the time
Keyboard is locked Unlock the keyboard.
Enable NMI —
Enable cache —
Boot —
connections. If the
problem persists, replace
the hard disk.
Correct the address
conflict. If the problem
persists, replace the ROM
chip.
and date.
Beep Codes
If the POST finds an error and cannot display a message, the server's speaker emits a series of beeps to indicate
the error. For example, a failure of bit 3 in the first 64 KB of RAM is indicated by a 2-1-4 beep code (a burst of
two beeps, a single beep, and a burst of four beeps).
The following tables list the beep codes when it encounters an error. The first table lists fatal errors that lock
up the server. The second table lists nonfatal errors that do not lock up the server.
Fatal errors are generally the result of a failed Main Logic Board or some other add-on component (SIMM,
server battery, etc.). Nonfatal errors can occur due to an improper connection between the server's rear panel
video connector and the monitor.
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Beep Codes for Fatal Errors
Beep Code Error Message
1-1-3
1-1-4
1-2-1
1-2-2
1-2-3
1-3-1
1-3-3
1-3-4
1-4-1
1-4-2
2-1-1
MCS Logistics Engineering - Nijmegen 49
CMOS write/read failure
ROM checksum failure
Interval timer failure
DMA failure
DMA page register write/read failure
RAM refresh failure
1st 64 KB RAM chip or data line failure
1st 64 KB RAM odd/even logic failure
1st 64 KB RAM address line failure
1st 64 KB RAM parity failure
Bit 0 1st 64 KB RAM failure
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Troubleshooting Digital PRIORIS MTE Server
Beep Codes for Fatal Errors (continued)
Beep Code Error Message
Bit 1 1st 64 KB RAM failure
Bit 2 1st 64 KB RAM failure
Bit 3 1st 64 KB RAM failure
Bit 4 1st 64 KB RAM failure
Bit 5 1st 64 KB RAM failure
Bit 6 1st 64 KB RAM failure
Bit 7 1st 64 KB RAM failure
Bit 8 1st 64 KB RAM failure
Bit 9 1st 64 KB RAM failure
Bit A 1st 64 KB RAM failure
Bit B 1st 64 KB RAM failure
Bit C 1st 64 KB RAM failure
Bit D 1st 64 KB RAM failure
Bit E 1st 64 KB RAM failure
Bit F 1st 64 KB RAM failure
Slave DMA register failure
Master DMA register failure
Master interrupt mask register failure
Slave interrupt mask register failure
No recovery diskette or disk error
Boot block checksum failure
Keyboard/mouse controller failure
Timer tick interrupt failure
Shutdown failure
Gate A20 failure
Unexpected interrupt in protected mode
RAM failure (above 0FFFFh)
Interval timer 2 failure
Time-of-day clock failure
Serial port failure
Parallel port failure
Math coprocessor failure
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2-1-2
2-1-3
2-1-4
2-2-1
2-2-2
2-2-3
2-2-4
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2-3-1
2-3-2
2-3-3
I
2-3-4
2-4-1
2-4-2
2-4-3
I
2-4-4
S
3-1-1
3-1-2
3-1-3
T
3-1-4
3-2-1
E
3-2-3
3-2-4
4-2-1
4-2-2
4-2-3
4-2-4
4-3-1
4-3-3
4-3-4
4-4-1
4-4-2
4-4-3
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Digital PRIORIS MTE Server Troubleshooting
Beep Codes for Nonfatal Errors
The table below lists the beep codes when it encounters a nonfatal error. This table lists nonfatal errors that do
not lock up the computer. Fatal errors that lock up the computer are listed in a separate table.
Beep Code Error Message
3-3-4
3-4-1
3-4-2
Screen memory failure
Screen initialization failure
Screen retrace failure
Server Troubleshooting
Problem Possible Cause Action
No response
when the
computer is
turned on
Power is on, but
there is no
screen display
Computer does
not boot from
an IDE hard
disk drive
Main logic board failure. Replace Main logic board.
Brightness and contrast controls
are not correctly set.
Monitor cable is incorrectly
installed
Operating system software is not
installed on the IDE hard disk
drive.
IDE hard disk drive is not
correctly formatted or the
requested partition does not exist.
Adjust the brightness and contrast controls.
Check all monitor connections.
Install the appropriate operating system.
Format the IDE hard disk drive or correctly partition
the IDE hard disk drive using the supplied operating
system software.
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There is no software on the
requested partition.
IDE hard disk drive jumpers
incorrectly set.
IDE drive type incorrect.
IDE main logic board jumper
incorrectly set.
Loose cables.
MCS Logistics Engineering - Nijmegen 51
Install software on the requested partition.
Refer to the supplied IDE hard disk drive kit
installation instructions.
Run the SCU to identify the correct drive type. See
drive type label on drive or consult drive
documentation.
Set the jumper for IDE operation; refer to the SCU.
Secure all cable connections.
Page 52
Troubleshooting Digital PRIORIS MTE Server
Server Troubleshooting (continued)
Problem Possible Cause Action
Computer does
not boot from a
target diskette
drive
Drive ID incorrectly set.
Diskette drive not enabled.
Diskette does not contain start-up
files.
Make sure the drive ID is correctly set.
Run the SCU to enable the diskette drive.
Insert a diskette with the correct start-up files.
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No response to
keyboard
commands
No response to
mouse
commands
IDE hard disk
drive cannot
read or write
information.
Loose cables.
Keyboard is password protected.
Keyboard is connected to the
mouse port.
Mouse is password protected.
Mouse is connected to the
keyboard port.
Mouse driver not installed.
Incorrect disk drive jumper
settings.
Loose or incorrectly installed
cables.
IDE/SCSI hard disk drive is not
correctly formatted or partitioned.
IDE drive type incorrect.
IDE main logic board jumper
incorrectly set.
Secure all cable connections.
Enter the keyboard password.
Connect the keyboard to the keyboard port.
Enter the keyboard and mouse password.
Connect the mouse.
Install the appropriate mouse driver; refer to the
supplied application software documentation.
Refer to the supplied kit installation instructions.
Make sure all cables are correctly installed.
Format and partition as required using the supplied
operating system.
Run the SCU to identify the correct drive type.
Set the jumper for IDE or operation.
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Digital PRIORIS MTE Server Troubleshooting
Disk Drive Troubleshooting
Problem Possible Cause Action
IDE/SCSI hard
disk drive
cannot read or
write
information
Incorrect disk drive jumper
settings.
Loose or incorrectly installed
cables.
Refer to the supplied kit installation instructions.
Make sure all cables are correctly installed.
Target diskette
drive cannot
read or write
information
IDE/SCSI hard disk drive is not
correctly formatted or partitioned.
IDE drive type incorrect.
Diskette is not formatted.
Diskette is worn or damaged.
Diskette write protection enabled.
Format and partition as required using the supplied
operating system.
Run the SCU to identify the correct drive type.
Format the diskette.
Try another diskette.
Run the SCU and set the Diskette Write Protection
option to "Disabled."
Monitor Troubleshooting
Problem Possible Cause Action
No screen
display
No monitor
display while
loading
Windows video
drivers
Distorted,
rolling, or
flickering
screen display,
or wrong /
uneven color
Color monitor
displaying
monochrome
Monitor fails
to switch to
high-resolution
mode
Configuration error. Run the SCU to configure the server for VGA
Monitor type incorrectly set. Set the correct monitor type.
Monitor incorrectly adjusted.
Monitor signal cable incorrectly
installed.
Server was turned on before the
monitor was turned on.
Video jumper incorrectly set.
Appropriate high-resolution
video drivers are not installed or
incorrectly installed.
operation. Set the jumper for VGA operation.
Adjust accordingly.
Straighten any bent connector pins and then
reconnect.
Turn off the server, turn on the monitor, then turn
the server back on.
Set the jumper for VGA operation.
Correctly install all appropriate high-resolution
video drivers.
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Troubleshooting Digital PRIORIS MTE Server
Monitor Troubleshooting (continued)
Problem Possible Cause Action
Monitor
display not
centered while
loading
Windows video
drivers
Monitor type incorrectly set. Set the correct monitor type.
P
QAPlus/FE Advanced Diagnostics
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Run QUAPlus/FE Advanced Diagnostics to:
O
♦ Receive System Information. Select SysInfo menu from the main menu.
R
♦ Locate bad chips and run mouse and keyboard tests. Select Interact menu.
I
♦ Edit CMOS. Select Setup menu.
♦ Run tests on components. Select Testing menu.
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Default testing is No Pause on Errors/Single Pass/No Peripherals/No Error Logging/Test All Components.
M
To change default, select settings under the Testing menu before running tests.
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QAPlus/FE Error Messages
Component Messages Solution
CPU
Hard disk
Hard
drive/controller
Floppy diskette
Floppy drive
Battery/clock
Arithmetic Function Failed
General Functions Failed
Exception Interrupt in Protected Mode
Refresh Failure
Logic Functions Failed
Butterfly Cylinder Access Test Failed
Cylinder 0 Errors
Random Cylinder Access Failed
Linear Cylinder Access Failed
Controller Diagnostic Test Failed
Questionable Controller Card
Hard drives failed
Media Mismatch
Drive Not Ready
Write Protected Media
Unformatted Media
Floppy Drives Failed Check connections, Replace drive
Clock Stopped
Invalid Date
RTC Interrupt Failed
Reset CPU
Replace CPU
Low-level format hard disk
Replace disk
Run Setup, Check connections,
Reset controller, Replace controller,
Replace disk
Use known good diskette
Check size and density of diskette
Close drive door
Remove write protection
Format diskette
Run Setup
Replace battery/clock
54 MCS Logistics Engineering - Nijmegen
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Digital PRIORIS MTE Server Troubleshooting
QAPlus/FE Error Messages (continued)
Component Messages Solution
CMOS
Serial port
Video adapter
CMOS Clock Test Failed Change time from Setup menu in QAPLUS
COM port failed
Serial Chip Error
Serial Compare Error
Serial Timeout Error
Video Failed
Error in Video Buffer
Check COM device
Check connections
Replace COM device
Replace COM device
Replace video adapter
Replace video adapter
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Digital PRIORIS MTE Server Device Mapping
Chapter 5 Device Mapping
This section provides a series of tables listing mapping and address information related to computer memory
and various main logic board devices (keyboard controller, interrupt controller, DMA controller, etc.).
The computer's memory and address locations are allocated at the factory to operate within a standard Server
environment. However, due to the number of optional devices and/or expansion boards that are available,
sometimes memory and address locations need to be changed. For example, some network expansion boards
require a specific memory location. If that location is already allocated, a memory conflict results and the
expansion board will not operate as expected. Note that some memory, I/O and interrupt locations can be
changed using the BIOS Setup utility.
CAUTION
Before changing any memory or address location, refer to the documentation supplied
with the optional device, expansion board, or software application and make sure
adequate information is available.
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Computer Memory Map
Address Range Function Size
0h to 9FFFFh
A0000h to BFFFFh
C0000h to C7FFFh
C8000h to DFFFFh
E0000h to EFFFFh
F0000h to FFFFFh
100000h to 7FFFFFFh
MCS Logistics Engineering - Nijmegen 57
Base memory 640 KB
Display buffer 128 KB
VGA BIOS 32 KB
BIOS Extension ROM
(AT bus usage)
Reserved 64 KB
Computer BIOS 64 KB
Extended memory 127 MB
96 KB
Page 58
Device Mapping Digital PRIORIS MTE Server
Interrupt Number
IRQ0
IRQ1
IRQ2
IRQ8
IRQ9
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
I/O Address Map
Range (hexadecimal) Function
DMA Controller one
Interrupt controller one
Interval timer
Keyboard controller
Real-time clock (RTC), NMI
DMA Page register
Interrupt controller two
DMA Controller two
Clear math coprocessor busy
Reset math coprocessor
Math coprocessor
IDE Controller
NS 87c312 Index register
COM2
LPT
VGA Registers
Diskette controller
IDE Controller (alt status, device address)
COM1
VGA Enable register
EISA config. PAGE register
EISA config. DATA register
Index register (Sis 85c411V)
Data register (Sis 85c411V)
System board ID
Index register (Sis 85c406)
Data register (Sis 85c406)
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000 - 00F
020 - 021
040 - 043
060 - 06F
070 - 07F
080 - 08F
0A0 - 0A1
0C0 - 0CF
0F0
0F1
0F8 - 0FF
1F0 - 1F7
26E - 26F
2F8 - 2FF
378 - 37F
3B0 - 3DF
3F0 - 3F7
3F6 - 3F7
3F8 - 3FF
46E8
C00
800 - 8FF
C18
C1C
C80 - C83
CA0
CA1
Computer Interrupt Levels
Priority Interrupt Controller
11
21
1
32
42
52
62
72
82
92
10 2
58 MCS Logistics Engineering - Nijmegen
Interrupt Source
Timer tick
Keyboard controller
Cascade interrupt
Real-time clock (RTC)
Reserved
Reserved
Reserved
Mouse interrupt
Math coprocessor
Hard disk drive
Reserved
Page 59
Digital PRIORIS MTE Server Device Mapping
Computer Interrupt Levels (continued)
Priority Interrupt Controller Interrupt Number Interrupt Source
11 1
12 1
13 1
14 1
15 1
IRQ3 COM2
IRQ4 COM1
IRQ5 Reserved
IRQ6 Diskette drive
IRQ7 LPT
DMA Channel Assignment
Channel Controller Function
0 1 Refresh
1 1 Not used
2 1 Diskette controller
3 1 Not used
4 2 Not used
5 2 Not used
6 2 Not used
7 2 Not used
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Digital PRIORIS MTE Server Pass/Fail Criteria
Chapter 6 Pass / Fail Criteria
As Final Acceptance Test the following tests should be run to meet the Pass/Fail criteria:
1) Successful completion of the POST tests.
2) Successful completion of the following QAPLUS/fe module tests (one pass):
♦ System Board (All Tests)
♦ Memory (All Tests)
♦ Video (All Tests)
♦ Hard Disk (All Tests, except: Sequential write/read and
Sequential write/random read (Destructive Tests !!))
♦ Floppy Disk (All Tests)
♦ Keyboard (All Tests)
♦ COM Ports (All Tests)
♦ LPT Ports (All Tests)
♦ Pointer device (All Tests)
3) Successful bootstrap of the on the computer installed Operating System.
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Operating Systems Supported:
◊ Windows for Workgroups
◊ OS/2 version 1.3
◊ OS/2 version 2.11
◊ SCO UNIX System V Relaese 3.2.4 and later
◊ SCO Open Desktop Release 2.0 and later
◊ Windows NT
◊ Novell UnixWare v1.1
◊ Novell Netware 3.12 and 4.1
◊ PATHWORKS v5.0
Remove any software that was put on the hard drive to enable repair of the system before shipping.
When completed carefully clean the outside of the unit with cleaning solution.
MCS Logistics Engineering - Nijmegen 61
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Page 63
Digital PRIORIS MTE Server Service Notes
Appendix A Service Notes
Recommended Tools
The following tools will be needed for servicing Digital PC systems. Note that test equipment must be in
calibration.
♦ Multimeter (4 1/2 digit)
♦ A philips screwdriver
♦ An antistatic wrist strap
Other Needed Materials
Cleaning agent should be an all purpose cleaner that is used in-house.
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Required Special Tools.
None.
Remedial Diagnostic Test Software.
♦ QAPLUS/fe , PC Advanced Diagnostic Software, latest version.
Partnumber : 22-00908-06
Recommended Virus Detection and Cleanup Software
♦ F-PROT, Virus Detection and Cleanup Software, latest version.
Network locations:
MCS Logistics Engineering - Nijmegen 63
North America, South America, Australia and New Zealand:
MINOTR::USER6:[VIRUS.F-PROT}
Europe, Africa, Middle and Far East:
VARDAF::EUROPUB:[VIRUS_SCANNER.F-PROT]
Page 64
Service Notes Digital PRIORIS MTE Server
ECO/FCO Information.
BIOS version information.
Refer to the Digital DECpc Bulletin Board Support , for the latest information on BIOS upgrades
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Network locations:
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North America, South America, Australia and New Zealand:
PCBUHD::DKB300:[WC30.BBSFILES]
Europe, Africa, Middle and Far East:
SUTRA::D6:[PUBLIC].
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Digital PRIORIS MTE Server Useful Information
Appendix B Useful Information
Related documentation
Document Titles Orders
Prioris MTE Quick Reference Guide
Prioris MTE Server User’s Guide
Quick Reference Guide, Spares Catalogue
Sevice Maintenance Manual, Spares Catalogue
On-Line Bulletin Boards
EK-A0826-RG
EK-A0817-SV
EK-A0836-RG
EK-A0815-SV
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The most current product information and technical support is also available on line. The most current device
drivers, Setup diskettes and technical tips can be found on all of these bulletin boards.
♦ DECpc Bulletin Board Server
DECpc BBS provides an easy-to-use, menu-driven bulletin board providing on-line access to the latest
Server product information, device drivers, shareware and freeware.
For access to the DECpc BBS, dial :
Network Location for ;
North America, South America, Australia and New Zealand
PCBUHD::DKB300:[WC30.BBSFILES]
Europe, Africa, Middle and Far East:
SUTRA::D6:[PUBLIC].
MCS Logistics Engineering - Nijmegen 65
xx33 9260312
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Digital PRIORIS MTE Server Document Feedback
Document FeedbacK
If you have comments on the contents or layout of this document we highly appreciate you feedback.
We will do our best to make this document a valuable support to your service effort for Digital.
Please fill -out the reader feedback form and send or fax it to:
Digital Equipment Parts Center b.v.
Att: MCS Logistics Engineering Call Desk
P.O. Box 6774
6503 GG Nijmegen
Holland
If you have questions about this document please do not hesitate to get in contact with our Call Desk.
The number is:
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Phone: xx31-24-3529666
Fax : xx31-24-3563106
MCS Logistics Engineering - Nijmegen 67
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Personal Notes
Page 70
Personal Notes
Page 71
Personal Notes
Page 72
Personal Notes
Page 73
Readers Comments
Digital PRIORIS HX590 & HX590DP Server
Service Maintenance Manual K-MN-SD00000-04-JG00.A
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