Copyright: ©1994 Digital Equipment Corporation
Citation: ©1994 Digital Equipment Corporation


Contents

Celebris 466/4100 Field Service/Field Training - Version 1.0

The following Help Topics or groups of Help Topics are available:

About This Help System

Introduction

General System Features

System Utilities & Configuration

Expanding Your Computer

Computer Messages

Problem Solving and Troubleshooting

Device Mapping

FRU List (Part Numbers)

Technical Specifications

Related Material

For Help on Help, Press F1


General System Features

Standard Computer Features

Standard Slots and Ports

Storage Bay Features

Front Panel Controls and Indicators

Rear Panel Connectors


System Utilities & Configuration

System Utilities  Diskette

Using the System Utilities Diskette

Computer Security

Configuring Your Computer

Running the BIOS Setup Utility

BIOS Setup Utility Options

PHLASH.EXE


About This Help System

This topic is designed to help you understand the way this Help file has been organized and the graphic and stylistic conventions which have been used in presenting the material.

Organization

There are several "layers" of contents pages in this Help file, each grouping a related set of Help topics.  The topics are also selectively cross-referenced, so that you can jump quickly between Help topics grouped in different sections of the file. Click on the highlighted words, phrases, and topic titles to move from topic to topic.

Enhanced Illustrations

When parts of an illustration appear boxed by dotted lines, you can click on the boxed area to see further information about the item being illustrated.  Note that if you have significantly reduced the size of the Help window, some illustrations may not be completely visible and/or the scrollable area of the window may become too small to display text.  If this happens, increase the size of the Help window until all the information you need becomes visible or can be scrolled into view.

The illustrations in this Help system have been designed for high-resolution display.  You should set your monitor to the highest possible screen resolution in order to view the illustrations most clearly.

Note, Legend, & Illustration Buttons

Some Help topics contain special buttons which indicate the presence of additional information.  For example, the [image] button identifies a Legend describing features of the illustration it accompanies.  Clicking on the button will allow the Legend or Note to appear for you to study.

In some cases, clicking on one of these specially marked buttons will allow you to view an illustration pertaining to a particular topic.

Color

Information of special importance has been indicated in this Help file by the use of colored text: blue for NOTE, red for CAUTION, and dark red for WARNING.  (If your system is equipped with a monochrome display, these colors will appear as BOLD text.)  You may find some of this colored text difficult to read if you have made changes in your Windows screen colors.  This problem can be solved by returning the color settings to one of the pre-defined Windows color sets while you are using the Help file.

Entire contents of this Help file copyright © 1994 Digital Equipment Corporation.


Introduction

Celebris 466/4100 computers are high-performance personal computers equipped with the latest in computing technology.  They can be used as stand-alone computers, as clients, or as servers in a network environment.  Developed using the following state-of-the-art technology, these computers are the most value packed low-profile desktop computers in their class.

Microprocessing	Intel i486 DX2 66 MHz, i486 DX4 100 MHz, and future Intel Pentium OverDrive Ready (Socket 3) compatible CPUs
Plug and Play	Optional Plug and Play expansion boards are automatically configured for optimum computer performance
Advanced Power Management (APM)	Reduces your computer´s energy consumption and operating costs
PCI Local Bus Technology	Highest performing 32-bit bus on the market today


Standard Computer Features

Feature	Computer Specifics
IDE	32-bit local bus IDE interface supports two IDE devices
Floppy	Dual floppy controller - supports 2 drives:  720 KB, 1.44 MB, and 2.88 MB 3½-inch drive, and 360 KB, 1.2 MB 5¼-inch drive
SCSI	supports optional SCSI controller (expansion board)


Storage Bay Features

Feature	Computer Specifics
Front access	1 - 3½-inch (diskette drive), 1-inch high 1 - 5¼-inch half height or 3½-inch 1-inch high device
Internal	2 - 3½-inch, 1-inch high devices (1 hard disk drive, 1 optional device)

See also:	 Front Panel Controls and Indicators


Standard Slots and Ports

Feature	Computer Specifics
Expansion slots	on main logic board: 1 PCI 32-bit local bus Personality slot for dedicated low profile video adapter 1 ISA Personality slot for custom low profile expansion cards (recommended for audio adapter) on riser card: 1 ISA and 2 PCI 32-bit local bus slots or 2 ISA and 1 PCI 32-bit local bus slots
Serial COMM ports	2 serial ports - 16550 compatible
Printer port	1 parallel (full ECP and EPP support)
Mouse	PS/2 compatible
Keyboard	PS/2 compatible

See also:	Expansion Slots
Rear Panel Connectors


Front Panel Controls and Indicators

To determine the purpose and function of a particular control or indicator on the front panel, click on the relevant portion of the illustration below.


drive bay

This is a 5¼-inch drive bay in which an additional drive (for example, a CD-ROM drive or tape back-up drive) may be installed.  It can also be adapted to serve as a second 3½-inch drive bay.


3½-inch diskette drive

This is the factory-installed 3½-inch diskette drive.


diskette eject button

Pressing this button releases a 3½-inch diskette inserted in the diskette drive.


power on/off button

This button turns ac power on and off.


reset button

This button resets the computer and causes the POST to run.


power light
power on/off LED

The power on/off LED is lit when the computer is on.


hard disk drive light

The hard disk drive light is lit when a hard disk drive is in use.


diskette access indicator

The diskette access indicator lights when the installed diskette drive is in use.


chassis lock

Locks the outside panels to prevent unauthorized access.


internal drive bay (front)

This is the location of a hidden internal drive bay.  Your computer´s hard disk drive is usually installed in this space.


Rear Panel Connectors and Voltage Select Switch
Rear Panel Connectors

To determine the purpose and function of a particular connector or switch on the rear panel, click on the relevant portion of the illustration below.


ac output connector

Allows you to connect a monitor to ac power.


ac line connector

Allows you to connect the computer to an ac power source.


mouse connector

Allows you to connect a PS/2 compatible mouse.


keyboard connector

Allows you to connect a 101-key or 102-key keyboard.


serial port connectors

These ports allow you to connect serial devices, such as an external modem.


analog video connector

Provides the interface between a video adapter and a supported monitor.


parallel port connector

This port allows you to connect an industrystandard parallel printer.


ISA expansion slot

This slot allows you to install a full size ISA expansion board.


ISA/PCI shared expansion slot

This slot allows you to install either a full size ISA expansion boards or a 32-bit PCI local bus expansion board.


PCI expansion slot

This slot allows you to install a 32-bit PCI local bus expansion board.


internal drive bay (rear)

This is the location of an internal drive bay.  You can install a second 1-inch high hard disk in this drive bay.


System Utilities Diskette
System Utilities Diskettes

Introduction

This chapter describes the utilities diskettes that were supplied with your Celebris 466/4100 computer:

•	System Utilities this diskette contains the file PHLASH.EXE.  PHLASH.EXE enables you to upgrade or restore the computer's BIOS via Flash ROM.

•	Plug and Play Utilities  this diskette enables you to configure your computer when using non-Plug and Play (legacy) expansion boards.

Refer to the supplied on-line Plug and Play Help file  for more information.

Before Using the System Utilities Diskette

If you are unfamiliar with utility programs and their uses, carefully read and understand this chapter before attempting to use this diskette.

Also, make sure your computer operates as expected following the instructions in Chapters 1 and 2 of your Users Guide.

See also:	Configuring Your Computer


Using the System Utilities Diskette

This diskette allows you to upgrade or restore the computer's BIOS.

	If this is the first time using the System Utilities diskette, it is recommended that you follow the procedures in the order given.
1.	Make a backup copy of the System Utilities diskette.

Refer to the supplied MS-DOS/Windows documentation for information on copying diskettes.

2.	Store the original System Utilities diskette in a safe place.

3.	Turn on or reboot your computer.  If the POST detects an error, refer to Computer Messages for possible causes and suggested solutions.

4.	Insert the backup copy of the System Utilities diskette into drive A.

5.	Run PHLASH.EXE to upgrade or restore your computer's BIOS.

6.	Remove the backup copy of the System Utilities diskette from drive A and then reboot your computer so changes immediately take effect.


PHLASH.EXE

All computers have BIOS software in a read-only, non-volatile memory (ROM) chip.  This BIOS initializes hardware and boots the operating system when the computer is turned on.  The BIOS also provides access to other services such as keyboard and disk drives.

Your computer comes equipped with flash memory.  This means that you can restore your computer's BIOS simply by running the PHLASH.EXE utility contained on the supplied System Utilities diskette.  You can also upgrade your computer's BIOS to future releases by running PHLASH.EXE along with any flash BIOS update diskette if necessary.


Before Using PHLASH.EXE

If you are not familiar with utility programs and their uses, carefully read and understand the following instructions before attempting to use PHLASH.EXE.

Have the following items available before you begin:

Blank formatted diskette

System Utilities diskette (supplied with your computer)

	Before attempting to upgrade the flash BIOS, ensure that J24 is set correctly.  To perform a flash BIOS upgrade, J24 must be set to enable.  After the upgrade, make sure J24 is set back to disable as a security measure (if desired).
Refer to Technical Specifications for information on main logic board jumper settings.


Computer Security

Computer security is important to avoid theft or accidental loss of your computer software and hardware.  The Celebris 466/4100 computer provides the following levels of protection:

•	Supervisor and User Passwords

•	Chassis Key Lock

•	Keyboard and Mouse Password


Supervisor and User Passwords

Your Celebris 466/4100 computer has two password levels that you can set to prevent unauthorized access to your computer files or BIOS Setup utility.  If you set a supervisor and/or user password, you will be prompted to enter either one prior to accessing the BIOS Setup utility or before your operating system boots.  You will also have to enter a supervisor or user password before accessing a diskette drive.

Perform the following steps to set a supervisor and user password:

1.	Reboot your computer.

2.	After the POST has successfully completed, press [F2] to access Setup.

The Setup main menu appears on the screen.

3.	Highlight the Security and Anti-Virus field and then press [Enter].

4.	Highlight the Set Supervisor and/or User Password field and then press [Enter].

5.	Type in a supervisor and/or user password and then press [Enter].

To confirm, type in your supervisor and/or user password a second time and then press [Enter].

6.	Highlight the Diskette Access field.

7.	Select either the Supervisor or User option and then press [Enter].

8.	Press [Esc] twice to exit the BIOS Setup utility and to reboot your computer so changes immediately take affect.

Your computer runs the POST and then prompts you for the password you set.


Chassis Key Lock

Your computers chassis key lock is located at the front of your computer.   When locked, other users cannot open the computer.

Make sure you remove the key and store it in a safe place.


Keyboard and Mouse Password

You can set a keyboard and mouse password using Windows screen saver feature.  The screen saver feature can be accessed through the Windows Control Panel and Desktop ICONs located in the Main window of Program Manager.

Refer to the supplied DOS/Windows documentation for additional information.


Configuring Your Computer

The information in the Help topics listed below explains how to configure your computer using the BIOS Setup utility.  If your computer was delivered with factory-installed software, it has already been configured.

If you are familiar with utility programs and their uses, refer to the material in the options table as you update your computer.  Otherwise, carefully read and understand all the information in both of these Help topics before attempting to modify your computer's configuration settings

See also:	Running the BIOS Setup Utility
Helpful Hints
BIOS Setup Utility Options


Running the BIOS Setup Utility

The BIOS Setup utility enables you to select and permanently store information about the computer's hardware and software in the batterybacked memory of the CMOS RAM.  This information takes effect each time the computer boots and can be changed each time you run setup.

Use the BIOS Setup utility if you experience problems with your hard disk or need to reconfigure your computer.  In addition, the BIOS Setup utility should be used to modify the configuration after you add or remove hardware, or change computer settings.

To run the BIOS Setup utility:

1.	Turn on your computer and allow POST to complete.

2.	Make a note of any configuration errors listed, and then press [F2] to display the main menu.

3.	Follow the instructions on your monitor screen and any on-line help pop-up screens to configure you computer.

 Helpful Hints


Helpful Hints

•	Several keyboard function keys and numeric keypad keys are assigned to help you select menus and options, change option values, and display help information.  These keys are displayed at the bottom of the main menu and from the General Help pop-up screen.

•	On-line help pop-up screens are available at anytime during the setup process.  These screens provide information about highlighted options and, in some cases, offer suggestions on how to choose the correct field for a selected option.  To access these screens, highlight an option and press [F1] or [Alt]+[H].

Select "System Summary" from the main menu to display your computer's current configuration.

Select "Load ROM Default Values" to set all Setup options to their default values.

Select "Load Values from CMOS" to load current CMOS values for all Setup options.

Select "Save Values to CMOS" to save all Setup values.

Press [Esc] or [Alt + X] to exit the Setup utility.


BIOS Setup Utility Options

Specific notes pertaining to some Setup options may be obtained by clicking on colored entries in the Menu Field column below, and/or by clicking on the icons in the rightmost column.

Advanced System Setup Options

Boot Options

Extended Features

Fixed Disk Setup Options

Green PC Features

Security and Anti-Virus Options

System Setup Options


Advanced System Setup Options

Advanced Chip Set Control

Integrated Peripherals

Large Disk Access Mode

Memory Cache

Memory Shadow


Advanced Chip Set Control

Menu Fields	Settings	Comments
Disable memory between 512K-640K	Disabled Enabled	Enables or disables the memory region between 512 KB and 640 KB If enabled, the amount of conventional memory under MS-DOS is reduced by 128 KB.
Disable memory between 12M-13M	Disabled Enabled	Enables or disables the memory region between 12 MB and 13 MB
IRQ 12	Enabled Disabled	Enables or disables the IRQ12 interrupt for the mouse
Hidden refresh	Disabled Enabled	Enables or disables your computer's hidden refresh option Enabling this option causes regular memory refreshes without holding up the CPU.
Code read page mode	Disabled Enabled	Enables or disables the code read page mode option Enabling this option improves computer performance each time code contains sequential instructions.
Write page mode	Disabled Enabled	Enables or disables the write page mode option Enabling this option improves computer performance each time data is written sequentially.
CPU to PCI write buffers	Disabled Enabled	Enabling or disables the CPU to PCI write buffers option Enabling this option causes CPU data to be stored in buffers before writing to PCI.
PCI to DRAM write buffers	Disabled Enabled	Enables or disables the PCI to DRAM write buffers option Enabling this option causes PCI data to be stored in buffers before writing to DRAM.
CPU to DRAM   write buffers	Disabled Enabled	Enables or disables the CPU to DRAM write buffers option Enabling this option causes CPU data to be stored in buffers before writing to DRAM.
Snoop ahead	Disabled Enabled	Enables or disables the snoop ahead option Enabling this option improves PCI bus master access to DRAM.
PCI memory burst cycles	Disabled Enabled	Enables or disables the PCI memory burst cycles option


Integrated Peripherals

Menu Fields	Settings	Comments
COM port	Auto Disabled Enabled at:    3F8, IRQ 4 Enabled at:    2F8, IRQ 3	Enables or disables any desired onboard serial port at the specified address
COM port	Auto Disabled Enabled at:    3F8, IRQ 4 Enabled at:    2F8, IRQ 3	Enables or disables any desired onboard serial port at the specified address
LPT port	Auto Disabled Enabled at:    3BC, IRQ 7 Enabled at:    378, IRQ 7 Enabled at:    278, IRQ 5	Enables or disables any desired onboard printer port at the specified address
Diskette controller	Enabled Disabled	Enables or disables the onboard diskette controller
PCI IDE controller	Enabled Disabled	Enables or disables the onboard IDE controller
ECP	Disabled Enabled	Enables or disables the extended capabilities parallel port


NOTE

If your computer is connected to a network, see your System Administrator.


Large Disk Access Mode

Menu Fields	Settings	Comments
Large disk access mode	DOS Other	Select DOS if you have MS-DOS installed.  Select Other if you have another operating system installed


NOTE

A large disk drive constitutes one that has more than 1024 cylinders, 16 heads, or 63 tracks per sector.


Memory Cache

Menu Fields	Settings	Comments
External cache	Disabled Enabled	Enables or disables your computer's external cache
Cache mode	Write through Write back	Sets your external cache to either write through or write back mode


Memory Shadow

Menu Fields	Settings	Comments
System shadow	Not user selectable	Your computer's system BIOS is always shadowed
Video shadow	Enabled Disabled	Enables or disables your computer's shadow video option
Shadow memory     regions:    C800-CFFF    D000-D7FF    D800-DFFF    E000-E7FF    E800-EFFF	Disabled Enabled	Allows you to enable or disable shadowing of individual segments of memory to increase computer performance


CAUTION

Some option ROMs do not operate properly when shadowed.


Boot Options

Menu Fields	Settings	Comments
Boot sequence	A: then C: C: then A: C: only	Each time your computer boots, it will load your operating system from the sequence selected
Summary screen	Enabled Disabled	Enables or disables your computer's configuration summary screen each time you boot
Boot from drive A	Enabled Disabled	Enables or disables drive A as the logical boot device
Boot from drive C	Enabled Disabled	Enables or disables drive C as the logical boot device
Boot from serial port	Enabled Disabled	Enables or disables a serial port as the logical boot device


Extended Features

Menu Fields	Settings	Comments
Numlock	Auto Off On	Turns Numlock on or off each time your computer boots If you select Auto, your computer will turn on Numlock if it detects a numeric keypad.
Keyboard auto-repeat rate	2/sec 6/sec 10/sec 13.3/sec 18.5/sec 21.8/sec 26.7/sec 30/sec	Sets the number of times to repeat a keystroke while holding a key down in seconds
Keyboard auto-lag delay	1/4 sec 1/2 sec 3/4 sec 1 sec	Sets the delay time after a key is held down prior to beginning a repeat keystroke sequence


Fixed Disk Setup Options

Menu Fields	Settings	Comments
IDE adapter 0 master/slave:
Autotype fixed disk		Selecting this option enables your computer to automatically identify and configure hard disk drive types 1 through 39
Type	1 to 39 User	Selecting 1 to 39 automatically fills in the remaining fields in this menu Selecting User prompts you to fill in the remaining fields with the installed hard disk drives parameters	{bmc POSTIT.BMP}
Cylinders	1 to 2048	Displays the number of cylinders
Heads	1 to 16	Displays the number of heads
Sectors/track	1 to 64	Displays the number of sectors/tracks
Landing zone	1 to 2048	Displays the number of cylinders specified as the landing zone for read/write heads
Write precomp	1 to 2048 None	Displays the number of cylinders that have their write timing changed
Multi-sector transfers	Disabled Auto 2 Sectors 4 Sectors 8 Sectors 16 Sectors	Determines the number of sectors per block for multiple sector transfers Auto refers to the size the hard disk drive returns when queried
LBA control mode	Disabled Enabled	Enables or disables the LBA hard disk drive addressing option
32 bit I/O	Disabled Enabled	Enables or disables the 32-bit hard disk drive data transfer option
Transfer mode	Fast PIO3 Standard Fast PIO1 Fast PIO2	Selects the method of data transfer to and from the hard disk drive Autotype the hard disk drive to select the optimum transfer mode


NOTE

These fields are automatically filled in if your computer auto-detected an installed hard disk drive.

CAUTION

Incorrect settings can cause your computer to malfunction.


NOTE

These fields are automatically filled in if your computer auto-detected an installed hard disk drive.


NOTE

These fields are automatically filled in if your computer auto-detected an installed hard disk drive.  (Not applicable to IDE hard disk drives.)


Green PC Features

Menu Fields	Settings	Comments
Hard disk timer	0 10 through 20	Sets your hard disk drives inactivity period required before standby (motor off)
Video timer	0 5 through 60  (in multiples of 5)	Sets your monitors inactivity period required before standby (screen clear)


Security and Anti-Virus Options

Menu Fields	Settings	Comments
Supervisor password is	Not user selectable	Tells you whether or not the supervisor's passwordis enabled or disabled
User password is	Not user selectable	Tells you whether or not the user's password is enabled or disabled
Set supervisor password	Press [Enter]	Enables you to set a supervisor password Setting a supervisor password provides full access to all BIOS Setup utility menus.	bmc POSTIT.BMP}
Set user password	Press [Enter]	Enables you to set a user password Setting a user password restricts access to certain BIOS Setup utility menus.
Password on boot	Enabled Disabled	Enables or disables the enter password on boot option	bmc POSTIT.BMP}
Diskette access	Supervisor User	Enables you to control who has access to diskette drives
Fixed disk boot sector	Normal Write protect	Enables you to write protect the boot sector on you hard disk drive
Network server	Disabled Enabled	Enables or disables your computers network server boot option
Quick lock	Disabled Enabled	Enables or disables your computers quick lock feature
System backup reminder	Enabled Disabled	Enables or disables the system backup reminder message
Virus check reminder	Enabled Disabled	Enables or disables the virus check reminder message


NOTE

When enabled, the computer will be locked at boot to prevent unauthorized access during network operation.


NOTE

This option requires prior setting of the supervisor password.


NOTE

The user password must be enabled for this feature to function.


System Setup Options

Menu Field	Settings	Comments
System time	Current time	Displays the current time
System date	Current date	Displays the current date
Language	English  Español Français Deutsch Italiano	Sets the desired language
Video system	EGA / VGA CGA 80x25 Monochrome	Sets the video controller type
System memory	Not user selectable	Displays the current amount of system memory
Extended memory	Not user selectable	Displays the current amount of extended memory
Diskette A / Diskette B	3.5", 1.44 MB 3.5", 2.88 MB Not Installed 5.25", 360 KB 5.25", 1.2 MB 3.5", 720 KB	Sets the size and density of diskette drives
Speaker volume	1 through 7	Sets the loudness of your computers speaker


BIOS

Basic Input/Output System

Allows you to restore or update your computer's BIOS via software.

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.


Related Material

Celebris 466/4100  Quick Setup Guide	ER-820WW-IA (English)
ER-820WW-IG (German)
ER-820WW-IH (Dutch)
ER-820WW-II (Italian)
ER-820WW-IS (Spanish)
ER-820WW-IP (French)

Celebris 466/4100  User's Guide	ER-810WW-UA (English)
ER-810WW-UG (German)
ER-810WW-UH (Dutch)
ER-810WW-UI (Italian)
ER-810WW-US (Spanish)
ER-810WW-UP (French)

805 VGA Users Guide	ER-76HEA-UA (English)
ER-76HEA-UM (Multi-Lingual)

864 VGA Users Guide	ER-XAGAL-UA (English)
ER-XAGAL-UM (Multi-Lingual)

928 VGA Users Guide	ER-76HEB-UA (English)
ER-76HEB-UM (Multi-Lingual)


Glossary

BIOS

SIMM

static electricity


Expanding Your Computer

Basics

Tools Needed

Before You Begin

Components

Computer Components

Expansion Slots

Main Logic Board

Mass Storage Devices

Top Device Tray (Accessing)

Voltage Select Switch

Service Procedures

FRU List (Part Numbers)


Service Procedures

Unlocking and Removing Outside Cover

Replacing and Locking the Outside Cover

Installation

Connecting Diskette and IDE Devices

Installing Additional Computer Memory

Installing Expansion Boards

Installing External Cache Memory

Installing a Higher Performance CPU

Installing SIMMs

Installing a 3½-Inch Device into the Top Device Bay

Installing a 3½-Inch Mass Storage Device (Bottom-Front Device Bay)

Installing a 3½-Inch Mass Storage Device (Bottom-Rear Device Bay)

Installing a 5¼-Inch Device into the Top Device Bay

Removal

Removing the 3½-Inch Diskette Drive

Removing Expansion Boards

Removing the Main Logic Board

Removing the Power Supply

Removing Riser Card & Bracket

Removing SIMMs


Tools Needed

The following tools are recommended:

•	A Phillips screwdriver

•	An antistatic wrist strap (recommended, but not required)

	WARNING  See also Static Electricity


Before You Begin

Before removing the outside cover, do the following:

1.	Turn off power to all external devices connected to computer.

2.	Turn computer off.

3.	Unplug power cord from wall outlet.

4.	Disconnect power cord and monitor cord from computer.

	WARNING  See also Static Electricity


Unlocking and Removing Outside Cover

	WARNING You might injure yourself or damage your computer if you attempt to remove the outside cover before unplugging ac and monitor power cords.
	CAUTION When outside cover is removed, do not insert foreign objects into vent openings of power supply.
The computer's outside cover must be removed prior to installing any hardware option.  To remove the outside cover:

1.	Unlock outside cover.

2.	Lift both side locks out, then turn towards front of computer to release outside cover from chassis.

3.	Carefully slide outside cover toward rear of chassis until it clears lip of front bezel.

4.	Carefully lift outside cover from chassis.


Computer Components

Click the Legend icon to see information about specific portions of the illustration.

  LEGEND


Legend - Computer Components

A	Power supply (under the internal drive bay)

B	Main logic board low-profile Personality expansion board slots

C	Main logic board

D	3½-inch diskette drive

E	Front access drive bays

F	Front internal drive bay

G	Riser card (supports up to three expansion boards; two PCI and one ISA or two ISA and one PCI)

H	Rear internal drive bay (under power supply)


Expansion Slots

Your Celebris 466/4100 computer contains six expansion board slots for installing both Plug and Play and non-Plug and Play expansion boards (refer to the following Table).  Four of the slots are located on your computer's riser card.  The remaining two Personality slots, located on your computer's main logic board, are reserved for a dedicated low-profile PCI video adapter and an optional low-profile ISA board.

Your computer automatically assigns the necessary resources to any installed Plug and Play-compatible expansion board so it operates at maximum performance.  If you plan on installing non-Plug and Play expansion boards, you might need to manually set jumpers on the board based on the computer resources already allocated.  For more information, refer to the supplied Plug and Play and/or Windows documentation as well as any Plug and Play on-line help contained in Getting Started.

	NOTE Prior to installing non-Plug and Play (legacy) expansion boards, always read the accompanying documentation for computer memory address and IRQ requirements.  Compare that information to your computers memory and IRQ requirements in Device Mapping.  If conflicts are detected, you must configure the expansion board to alternate settings.
Expansion Slot Types & Locations


Expansion Slot Types & Locations

Expansion Slot Location	SlotType	Description
Riser card top slot	ISA	Supports full-length industry-standard 16-bit ISA expansion boards
Riser card middle slot	ISA/PCI	Supports a full-length industry-standard 16-bit ISA expansion board or a full-length 32-bit PCI local bus expansion board
Riser card bottom slot	PCI	Supports full-length 32-bit PCI local bus expansion boards
Main logic board	ISA	Supports low-profile industry-standard 16-bit ISA expansion boards
Main logic board	PCI	Supports low-profile 32-bit PCI expansion boards (This slot contains the dedicated video adapter)


Main Logic Board

Click the Legend icon to see information about specific portions of the illustration.

 LEGEND


Legend - Main Logic Board

A	5 V dc power supply connector
B	Diskette drive connector
C	Mouse and keyboard connectors
D	Serial port connectors
E	Parallel port connector
F	Riser card connector
G	Flash BIOS
H	Real-time clock/computer battery
I	Four 36-bit SIMM sockets
J	IDE drive connector
K	256 KB external cache socket
L	3.3 V dc power supply connection
M	One PCI 32-bit local bus Personality slot for dedicated low-profile video adapter
N	One ISA Personality slot for optional low-profile expansion boards (recommended for an audio adapter)
O	CPU upgrade socket


Mass Storage Devices

Your Celebris 466/4100 computer contains four mass storage device bays:

•	The top device bay is accessible from the front of the computer and can hold a low-profile 3½-inch or 5¼-inch half-height device.  For example, a diskette drive, tape backup drive, CD-ROM, or hard disk drive.

•	The middle device bay contains a factory installed 3½-inch diskette drive.

•	The bottom-front and bottom-rear device bays are not accessible from the front of the computer and only support low-profile 3½-inch hard disk drives.

See also:	Computer Components


Metal Filler Plate


Accessing the Top Device Tray
Top Device Tray (Accessing)

1.	Turn off your computer.

2.	Disconnect external devices, ac power, and monitor power.

3.	Unlock and remove outside cover.

4.	Remove and save the three-piece filler panel.

5.	Remove screw securing top device tray to chassis.

Pull tray out from front of computer.

6.	Remove screw securing metal face plate to top device tray.

	NOTE Save metal face plate and screw for future use if you need to install a 3½-inch device.


Voltage Select Switch

	CAUTION The voltage selection switch must match the voltage supplied by your power outlet.  In North America 115 volts is common.  In other countries 230 volts is common.  Ensure that the voltage selection switch is set to the correct voltage.  If it is not set correctly, you can damage your computer.
In most cases, your computers voltage select switch is set at the factory for the proper ac input power source available in your specific country.


Installing Additional Computer Memory

Adding more memory allows your computer to run larger, more complicated software and run it quicker.

Your computer comes with at least 8 MB of memory.  You can increase this amount up to 128 MB, however, when adding additional memory make sure you:

Install 36-bit SIMMs having an access time of 70 ns or less.

Fill two sockets at a time using the same SIMM size, type and speed.  Supported SIMM sizes:  4 MB, 8 MB, 16 MB, and 32 MB.

Fill bank 0 before bank 1.

See also:	Installing SIMMs
Memory Configurations


Memory Configurations

Bank 0	Bank 0	Bank 1	Bank 1	Total
4 MB	4 MB			8 MB
4 MB	4 MB	4 MB	4 MB	16 MB
8 MB	8 MB			16 MB
4 MB	4 MB	8 MB	8 MB	24 MB
8 MB	8 MB	8 MB	8 MB	32 MB
16 MB	16 MB			32 MB
4 MB	4 MB	16 MB	16 MB	40 MB
8 MB	8 MB	16 MB	16 MB	48 MB
16 MB	16 MB	16 MB	16 MB	64 MB
32 MB	32 MB			64 MB
4 MB	4 MB	32 MB	32 MB	72 MB
8 MB	8 MB	32 MB	32 MB	80 MB
16 MB	16 MB	32 MB	32 MB	96 MB
32 MB	32 MB	32 MB	32 MB	128 MB


Installing Expansion Boards

	NOTE Read and fully understand your optional expansion board's documentation before installing it..
To install an ISA or PCI local bus expansion board:

1.	Turn off your computer.

2.	Disconnect external devices, ac power, and monitor power.

3.	Unlock and remove outside cover.

4.	Unscrew and remove the metal filler plate for selected expansion slot.

Carefully remove the plastic filler panel(s) from the rear panel.

5.	Insert new expansion board into socket.

Push expansion board firmly into place.

6.	Secure expansion board to slot.

If necessary, use screw removed in step 4.

7.	Replace and lock outside cover.

8.	Connect external devices and restore power.

9.	Run ICU to configure computer.

See also:	Installing SIMMs


Installing External Cache Memory

Your computer is equipped with a socket for installing a 256 KB external cache module.  This module is designed to improve the performance of the installed CPU.  To install the cache module:

1.	Turn off your computer.

2.	Disconnect external devices, ac power, and monitor power.

3.	Unlock and remove outside cover.

4.	Remove external cache from packaging and install in socket.

5.	Replace and lock outside cover. Refer to Replacing and Locking the Outside Cover, later in this chapter.

6.	Connect external devices and restore power.

7.	If necessary, run BIOS Setup utility and enable external cache option.

See also:	Configuring Your Computer


Installing a Higher Performance CPU

Your Celebris 466/4100 main logic board is equipped with an Intel Pentium Processor OverDrive Ready socket (Socket 3 ZIF).  This socket is capable of supporting faster Intel i486 microprocessors Your Celebris 466/4100 main logic board is equipped with an Intel Pentium Processor OverDrive Ready socket (Socket 3 ZIF).  This socket is capable of supporting faster Intel i486 microprocessors as well as future Intel Pentium OverDrive processors.  Contact your Digital sales representative for processor availability and ordering information for your computer

	NOTE Some variations of the Intel i486 DX4 100 MHz microprocessors are supplied with a 3.3 V dc regulator card.
	CAUTION If you are installing an Intel i486 microprocessor, make sure you align chip with outside row of pins visible. Before installing a new CPU chip, update your computer BIOS.  Do not wait to update the BIOS until after installing a new CPU chip.
To install a higher performance CPU:

1.	Turn off your computer.

2.	Disconnect external devices, ac power, and monitor power.

3.	Unlock and remove outside cover.

4.	Looking from front of computer, lift up on release lever and move it toward front panel.

5.	Remove old CPU and note location of pin 1 (A).

Looking from front of computer, pin 1 can be identified by a white dot and a notch at front left corner.

6.	Install new CPU.

Make sure pin 1 on CPU is aligned with pin 1 on ZIF socket.

7.	Return release lever to its original position and then set all appropriate CPU jumpers (seeMain Logic Board Jumpers )

8.	Replace and lock outside cover.  Refer to Replacing and Locking the Outside Cover, later in this chapter.

9.	Connect external devices and restore power.


Installing SIMMs

	CAUTION Use care when installing SIMMs. The retaining clips on the sockets break easily if the SIMM is not seated correctly.
1.	Turn off your computer.

2.	Disconnect external devices, ac power, and monitor power.

3.	Unlock and remove outside cover.

4.	Install SIMM into socket at a 45 degree angle.

Make sure notch is oriented as shown.  Rock SIMM gently until it seats evenly into bottom of socket.  Tip SIMM upright until both retaining clips engage.

5.	Replace and lock outside cover.

6.	Connect external devices and restore power.

7.	Reboot your computer to configure it for additional memory.

See also:	Replacing and Locking the Outside Cover


Installing a 3½-Inch Device into the Top Device Bay

The following procedures describe how to install a 3½-inch device into the top device bay.  You must access the top device tray before performing this procedure.

	NOTE Refer to the manufacturer's instructions for your device to determine if switches or jumper settings need to be set or installed on the device.  Set all switch and jumper settings accordingly.  If you are installing a 3½-inch diskette drive, make sure its drive ID is set to 1.  Refer to supplied kit installation instructions for appropriate drive ID locations..
1.	Attach 3½-inch device to metal face plate.

2.	Secure metal face plate to tray using previously removed screw.

3.	Carefully slide tray into top device bay making sure tabs fully engage slots at front of chassis

Secure 3½-inch device and tray using supplied mounting screws.

4.	If you installed a 3½-inch diskette drive, carefully remove bottom-right piece of filler panel.

Otherwise, install three-piece filler panel to front of chassis.

5.	 Connect power and data cables to 3½-inch device.

See also:	Top Device Tray (Accessing)
Connecting Diskette and IDE Devices


Installing a 3½-Inch Mass Storage Device
(Bottom-Front Device Bay)

The following procedures describe how to install a 3½-inch mass storage device into the bottom-front device bay

	NOTE Refer to the manufacturer's instructions for your device to determine if switches or jumper settings need to be set or installed on the device.  Set all switch and jumper settings accordingly..
1.	Turn off your computer.

2.	Disconnect external devices, ac power, and monitor power.

3.	Unlock and remove outside cover.

4.	Slide front locking mechanism to right and release device bay and power supply subassembly.

5.	Lift up on subassembly and lock in place.

6.	Attach 3½-inch mass storage device to bottom-front device bay using supplied mounting screws.  At this time, secure device only to left side of subassembly.

Orient drive with IDE cable connector located away from bottom of chassis.

7.	Release device bay and power supply subassembly rear latch and close subassembly.

8.	Attach 3½-inch mass storage device to right side of subassembly using supplied mounting screws.

9.	Slide front locking mechanism to left to secure device bay and power supply subassembly.

10.	 Connect power and data cables to 3½-inch device.

See also:	Connecting Diskette and IDE Devices


Installing a 3½-Inch Mass Storage Device
(Bottom-Rear Device Bay)

	NOTE Refer to the manufacturer's instructions for your device to determine if switches or jumper settings need to be set or installed on the device.  Set all switch and jumper settings accordingly..
To install a 3½-inch mass storage device in the bottom rear device bay:

1.	Turn off your computer.

2.	Disconnect external devices, ac power, and monitor power.

3.	Unlock and remove outside cover.

4.	Slide front locking mechanism to right and release device bay and power supply subassembly.

5.	Remove power supply, IDE, and diskette cabling from main logic board noting their proper orientation.

6.	While holding the device bay and power supply subassembly, carefully release the rear latch.


7.	Carefully slide entire subassembly away from chassis and place upside down on antistatic surface.

8.	Attach 3½-inch mass storage device to bottom-rear device bay using supplied mounting screws.

Make sure connector of rear device lines up with connector of front device.

Also, make sure you can connect both drives without twisting cable.

9.	Carefully slide device tray and power supply subassembly into front and rear slots of chassis.

Lock subassembly into place using rear latch.

10.	Properly connect power supply, IDE and diskette cabling to main logic board.

11.	Release device bay and power supply subassembly rear latch and then close.

Close subassembly and then secure to chassis using front locking mechanism.  Connect power and ribbon cables to 3½-inch mass storage device.

See also:	Connecting Diskette and IDE Devices


Installing a 5¼-Inch Device into the Top Device Bay

The following procedure describes how to install a 5¼-inch device into the top device bay.  You must access the top device tray before performing this procedure.

	NOTE Refer to the manufacturer's instructions for your device to determine if switches or jumper settings need to be set or installed on the device.  Set all switch and jumper settings accordingly.  If you are installing a 5¼-inch diskette drive, make sure its drive ID is set to 1.  Refer to supplied kit installation instructions for appropriate drive ID locations.
1.	Attach 5¼-inch device to top device tray using supplied mounting screws.

At this time, secure device only to left side of tray.

2.	Carefully slide tray into top device bay making sure tabs fully engage slots at front of chassis.

Secure 5¼-inch device and tray using supplied mounting screws.

3.	 Connect power and data cables to 5¼-inch device.

See also:	Top Device Tray (Accessing)
Connecting Diskette and IDE Devices


Connecting Diskette and IDE Devices

Click the Legend icon to see detailed information about specific portions of the illustration.

To connect diskette and IDE devices, perform the following:

  LEGEND

	NOTE If only one IDE device is installed, make sure you use the ribbon cable connector furthest from the main logic board connector. Also, if you have IDE devices installed in both internal drive bays, make sure the devices data/control connectors directly face each other
1.	Unlatch device bay and power supply subassembly.

Lift up on subassembly and lock in place.

2.	Connect supplied ribbon cable to appropriate device as shown.

3.	Connect appropriate power cable to device.

4.	Release device bay and power supply subassembly rear latch.

5.	Close subassembly and then secure to chassis using front locking mechanism.

6.	Replace and lock outside cover.

7.	Connect external devices and restore power.

8.	Run BIOS Setup utility to configure computer.


NOTE
	NOTE Make sure cable is connected with correct orientation.  Most cables and sockets are keyed so you cannot connect them backwards.  If your cable or device is not keyed, you must connect pin 1 of cable to pin 1 of device's socket. Pin 1 of cable is on edge with colored stripe.  Pin 1 of device's socket should be marked with a number "1" at one end of socket or with a number "1" printed on circuit board near one end of socket.  If necessary, refer to the device's documentation for pin 1 orientation..


Legend - Diskette/IDE Connections

A	Power supply
B	Power connections
C	Diskette drive connection
D	IDE drive connection
E	Diskette drive
F	Hard disk drive
G	Optional storage devices


Removing the 3½-Inch Diskette Drive

To remove the 3½-inch diskette drive:

1.	Turn off your computer.

2.	Disconnect external devices, ac power, and monitor power.

3.	Unlock and remove outside cover.

4.	Remove two screws securing the right side of diskette drive to chassis.

5.	Unlatch device bay and power supply subassembly.

Lift up on subassembly and lock in place.

6.	Disconnect power and ribbon cables.

Refer to Connecting Diskette and IDE Devices.

7.	Remove two screws securing the left side of diskette drive to chassis.

8.	Slide the diskette drive out of the front of the chassis.


Removing Expansion Boards

To remove an expansion board:

1.	Turn off your computer.

2.	Disconnect external devices, ac power, and monitor power.

3.	Unlock and remove outside cover.

4.	Remove screw from metal filler plate.

5.	Gently pull board outward.


Removing Main Logic Board
Removing the Main Logic Board

To remove the main logic board:

1.	Turn off your computer.

2.	Disconnect external devices, ac power, and monitor power.

3.	Unlock and remove outside cover.

4.	Remove all connectors.

5.	Remove all expansion boards.

6.	Remove the riser card and bracket.

7.	Remove screws and lift the board out.


Removing Power Supply
Removing the Power Supply

To remove the power supply:

1.	Turn off your computer.

2.	Disconnect external devices, ac power, and monitor power.

3.	Unlock and remove outside cover.

4.	Slide front locking mechanism to right and release device bay and power supply subassembly.

5.	Remove power supply, IDE, and diskette cabling from main logic board noting their proper orientation.

6.	While holding the device bay and power supply subassembly, carefully release the rear latch.

7.	Carefully slide entire subassembly away from chassis and place upside down on antistatic surface.

8.	Loosen two screws securing power on/off switch to chassis.

9.	Remove screws securing power supply to chassis.

10.	Remove power supply and power on/off switch from the subassembly.


Removing Riser Card & Bracket

To remove the riser card and bracket:

1.	Turn off your computer.

2.	Disconnect external devices, ac power, and monitor power.

3.	Unlock and remove outside cover.

4.	Remove all expansion boards.

5.	Carefully lift riser card and bracket from computer.


Removing SIMMs

To remove SIMMs

1.	Turn off your computer.

2.	Disconnect external devices, ac power, and monitor power.

3.	Unlock and remove outside cover.

4.	Press retaining clips out.

5.	Push SIMM down and pull out.


Replacing and Locking the Outside Cover

To replace and lock your computers outside cover:

1.	Place outside cover on chassis.

Make sure side locks are clear of front bezel, and in open position.

2.	Carefully slide outside cover toward rear of chassis.

Leave small gap between cover and rear bezel.

3.	Turn both side locks toward rear of computer, then close locks to secure outside cover to chassis.

4.	Lock outside cover using key.


SIMM

Single In-line Memory Module


static electricity

Static electricity collects on non-conductors such as paper, cloth, or plastic.  A static discharge can cause damage even though you cannot see or feel it.

To prevent damage to circuit boards and/or components:

•	Before touching any circuit board or component, touch the metal frame of your computer to discharge any static electricity.

•	Keep circuit boards and components away from non-conductors.

•	Keep clothing away from circuit boards and components.

•	Keep circuit boards in anti-static bags.


FRU List (Part Numbers)

Part #	Description

30-41308-01	Enclosure assembly

30-42250-01	Power supply, 200W

74-44863-31	name plate, 433SX

74-44863-32	name plate, 433DX

74-44863-33	name plate, 450D2

74-44863-34	name plate, 460D2

74-44863-35	name plate, P24C-100M

74-44863-37	name plate, 450S2

74-46508-02	3.5 dress cover


Problem Solving and Troubleshooting

These topics provide initial troubleshooting procedures and tables listing specific problems, probable causes, and recommended actions to take if your computer fails after you configure it or after you install optional hardware or software.

Refer to the documentation supplied with additional options if you are experiencing problems with specific options that you have installed.

•	Initial Troubleshooting

•	Computer Troubleshooting

•	Disk Drive Troubleshooting

•	Monitor Troubleshooting

See also:	Computer Messages


Initial Troubleshooting

Follow these general procedures to troubleshoot your Celebris 466/4100 computer.

	NOTE If you need to return a failed component, pack it in its original container and return it to Digital for service.  If you are a self-maintenance customer, call your Digital service representative for assistance and recommendations.
•	Press [Ctrl] + [Alt] + [Del].  If your 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 refer to Computer Messages and 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 diagnostic software.

If these steps do not identify and/or correct the problem, perform the specific troubleshooting procedures appropriate to the circumstances..

See also:	 Configuring Your Computer


Computer Troubleshooting

Problem	Possible Cause	Action
No response when the computer is turned on.	Computer is not plugged in.	Turn off the computer, plug it in, and then turn it back on again.
	No power at the wall outlet.	Use another wall outlet.
	Main logic board  failure.	Contact your Digital service representative.
	Main logic board jumpers incorrectly set.	Set all appropriate jumpers (Refer to Appendix A).
	CPU has failed.	Replace CPU.
Power is on, but there is no screen display.	Brightness and contrast controls are not correctly set.	Adjust the brightness and contrast controls.
	Monitor is off.	Turn on the monitor.
	Monitor cable is incorrectly installed.	Check all monitor connections.
	Video adapter not seated in the expansion slot correctly.	Reseat the video adapter.
	Video adapter has failed.	Contact your Digital service representative.
Computer operates incorrectly after installing optional expansion board.	Expansion board installed incorrectly.	Remove expansion board and reinstall.
	Did not run ICU to configure expansion board after installation.	Run the ICU to properly configure expansion board and then reboot your computer.
	Expansion board has failed.	Remove expansion board and reboot.  If computer boots without errors, replace expansion board.
Computer operates incorrectly after installing optional SIMMs.	SIMMs installed incorrectly.	Remove SIMMs and reinstall.
	SIMMs have failed.	Remove SIMMs and reinstall. Make sure bank 0 is filled with two SIMMs before filling bank 1 with two SIMMs (refer to Chapter 4) Replace SIMMs.
Computer operates incorrectly after installing optional external cache module.	External cache module installed incorrectly.	Remove external cache module and reinstall.
	External cache module has failed.	Replace external cache module.
Computer fails to retain setup information.	Computer battery has failed.	Contact your Digital service representative.
Computer does not boot from an IDE hard disk drive.	Operating system software is not installed on the IDE hard disk drive.	Install the appropriate operating system.
	IDE hard disk drive is not correctly formatted or the requested partition does not exist.	Format the IDE hard disk drive or partition the IDE hard disk drive using the supplied operating system software.
	There is no software on the requested partition.	Install software on the requested partition.
	IDE hard disk drive jumpers incorrectly set.	Refer to the supplied IDE hard disk drive kit installation instructions.
	IDE drive type incorrect.	Run the BIOS Setup utility to identify the correct drive type. See drive type label on drive or consult drive documentation.
	Loose cables.	Secure all cable connections.
	Onboard IDE interface disabled.	Run the BIOS Setup utility and set the PCI IDE controller option to Enabled.
	"Boot from Hard Disk C" is disabled via BIOS Setup utility.	Enable the "Boot from Hard Disk C" via BIOS Setup utility.
Computer does not recognize an internal or external SCSI device.	SCSI device jumpers incorrectly set.	Refer to the supplied SCSI device kit installation instructions.
	SCSI ID conflicts.	Refer to the supplied SCSI device kit installation in-structions on setting SCSI IDs.
	Terminating resistors not removed from the SCSI device.	Remove terminating resistors. Refer to the supplied kit installation instructions.
	SCSI cable not terminated.	Terminate each end of the SCSI cable.
	SCSI adapter failure.	Contact your Digital service representative.
Computer does not boot from an internal SCSI hard disk drive.	Operating system software is not installed on the SCSI hard disk drive.	Install the appropriate operating system.
	Requested partition does not exist.	Partition the SCSI hard disk drive and then reload the operating software.
	Computer not configured for SCSI hard disk drive operation.	Run the BIOS Setup utility and set the PCI IDE controller option to Disabled.  This disables the IDE interface. Note:  If you have both IDE and SCSI hard disk drives installed, your computer uses the IDE hard disk drive as the boot device.
Computer does not boot from a target diskette drive.	Drive ID incorrectly set.	Make sure the drive ID is correctly set (refer to the documentation supplied with your diskette drive).
	Diskette drive not enabled.	Run the BIOS Setup utility to enable the diskette drive.
	Onboard diskette controller disabled.	Run the BIOS Setup utility and set the diskette controller option to Enabled.
	Diskette boot option disabled.	Run the BIOS Setup utility and set and set the proper boot sequence."
	Diskette does not contain start-up files.	Insert a diskette with the correct start-up files.
	Diskette drive is empty.	Insert a diskette that contains an operating system.
	Diskette is worn or damaged.	Try another diskette.
	Loose cables.	Secure all cable connections.
No response to keyboard commands.	Keyboard is password protected.	Enter the keyboard password.
	Keyboard is not connected.	Power down the computer and connect the keyboard.
	Keyboard is connected to the mouse port.	Power down the computer and connect the keyboard to the keyboard port.
No response to mouse commands.	Mouse is password protected.	Enter the keyboard and mouse password.
	Mouse is not connected.	Power down the computer and connect the mouse.
	Mouse is connected to the keyboard port.	Power down the computer and connect the mouse to the mouse port.
	Mouse driver not installed.	Install the appropriate mouse driver.  Refer to your supplied application software documentation.


Disk Drive Troubleshooting

Problem	Possible Cause	Action
IDE/SCSI hard disk drive cannot read or write information.	Incorrect disk drive jumper settings.	Refer to the supplied kit installation instructions. .
	Loose or incorrectly installed cables.	Make sure all cables are correctly installed.
	IDE/SCSI hard disk drive is not correctly formatted or partitioned.	Format and partition as required using the supplied operating system
	IDE drive type incorrect.	Run the BIOS Setup utility to identify the correct drive type
	Onboard IDE interface disabled.	Run the BIOS Setup utility and set the PCI IDE controller option to Enabled.
Target diskette drive cannot read or write information	Diskette is not formatted.	Format the diskette.
	Diskette is worn or damaged.	Try another diskette.
	Diskette is write-protected.	Slide the write-protect switch so the hole is not visible (3½-inch diskette) or uncover the writeprotect notch (5¼-inch diskette).
	Diskette drive is empty.	Insert a diskette.
	Onboard diskette controller disabled.	Run the BIOS Setup utility and set the diskette controller option to Enabled.


Monitor Troubleshooting

Problem	Possible Cause	Action
Monitor power indicator is not on.	Monitor is turned off.	Turn on the monitor.
	Power cord is not connected.	Connect the power cord to the computer.
	No power at wall outlet.	Use another outlet.
	Power indicator is defective.	Replace power indicator.
No screen display.	Configuration error.	Set the jumper for VGA operation.  See Main Logic Board Jumpers
	Monitor brightness and contrast controls are incorrectly set.	Adjust the monitor brightness and contrast controls.
	Monitor signal cable incorrectly installed.	Check cable connection.
No monitor display while loading Windows video drivers.	Monitor type incorrectly set.	Set the correct monitor type using the appropriate utility.  Refer to an appropriate Video Adapter User's Guide.
Distorted, rolling, or flickering screen display, or wrong/uneven color.	Monitor incorrectly adjusted.	Adjust accordingly.
	Monitor signal cable incorrectly installed.	Straighten any bent connector pins and then reconnect.
Color monitor displaying monochrome.	Computer was turned on before the monitor was turned on.	Turn off the computer, turn on the monitor, then turn the computer back on.
	Video jumper incorrectly set.	Set the jumper for color operation.  (See Main Logic Board Jumpers ).
Monitor fails to switch to high-resolution mode.	Appropriate high-resolution video drivers are not installed or incorrectly installed.	Correctly install all appropriate high-resolution video drivers.  Refer to an appropriate Video Adapter User's Guide and the documentation supplied with your monitor.
Monitor display not centered while loading Windows video drivers.	Monitor type incorrectly set.	Set the correct monitor type.  Refer to an appropriate Video Adapter User's Guide.


Technical Specifications

These topics provide information about the technical characteristics of the Celebris 466/4100 computers.

•	Computer Specifications

•	ISA Expansion Slots

•	PCI Local  Bus Expansion Slots

•	Power Supply and Input Power

•	Nominal Current Requirements

•	Main Logic Board Jumpers


CPU Specifications
Computer Specifications

The following sections list the Celebris 466/4100 computers CPU features, performance, dimensions and environmental specifications.

•	Celebris 466/4100 CPU Features

•	Dimensions

•	Environmental Specifications

•	Performance Specifications


CPU Features
Celebris 466/4100 CPU Features

Feature	Specification
Type/speed	Intel i486 DX2 66 MHz, i486 DX4  100 MHz, and future Intel Pentium OverDrive Ready (Socket 3) compatible CPUs
Wait state	2,1,1,1 at 33 MHz, 256 KB cache 0 wait state for writes
Secondary cache	Direct-mapped, write-back 0 KB standard, 128 KB or 256 KB optional
Internal cache	8 KB (i486 only)


Computer Dimensions
Dimensions

Dimension	Specification
Width	366 mm (14.40 in)
Length	415 mm (16.34 in)
Height	107 mm (4.21 in)
Weight	8.5 kg (18.75 lb)


Computer Environmental Specifications
Environmental Specifications

Attributes	Specification
Operating temperature	10°C to 40°C (50°F to 104°F)
Storage temperature	−20°C to 65°C (−4°F to 149°F)
Operating humidity (noncondensing)	10% to 90% relative humidity,  maxium wet bulb 40°C  (104°F)
Storage humidity (noncondensing)	5% to 95% relative humidity,  maximum wet bulb 65°C  (149°F)
Altitude   Operating   Nonoperating	2,438 m (8,000 ft) maximum 4,876 m (16,000 ft) maximum
Shipping vibration	IAW Federal Standard 101, method 5019
Nonoperating shock	30 G, 25 ms halfsine


Computer Performance Specifications
Performance Specifications

Attributes	Specification
Bus clock    ISA    PCI	7.5/8.33 MHz 30/33 MHz
Data I/O    ISA    PCI	8-bit and 16-bit 32-bit
Main logic board DRAM	8 MB standard (expandable up to 128 MB, using 32 MB SIMMs)
ROM BIOS size	128 KB


ISA Expansion Slots

The main logic board contains four ISA expansion slots.  The maximum available +5 V dc current allowable to any expansion slot depends upon the following parameters:

•	Power supply capacity

•	The +5 V dc requirements of the main logic board and daughterboard

•	The +5 V dc requirements of the peripherals

•	The power demands of all other slots in use


PCI Local Bus Expansion Slots

The main logic board and riser card contain three PCI local bus expansion slots

•	V dc only PCI expansion boards

•	Uses one high-powered (25 watts) PCI expansion slot and two standard power PCI expansion slots (up to 15 watts)

•	All slots are bus masters


Power Supply and Input Power Requirements

The power supply provides five dc voltages: +12 V dc, −12 V dc, +5 V dc, −5 V dc, and +3.3 V dc.  These voltages are used by the various components within the computer. The following table lists the input power requirements.

Rated Voltage Range	Maximum Range	Rated Input Current(1)	Operating Frequency Range
100 V ac - 120 V ac	90 V ac  - 135 V ac	5 A	47 Hz - 63 Hz
220 V ac - 240 V ac	180 V ac - 265 V ac	2.5 A	47 Hz - 63 Hz
(1)  Includes outlet current


Nominal Current Requirements

Celebris 466/4100  computers provide the following nominal current requirements:

•	+5 V    	2 A min, 13 A max.

•	+12 V     0 A min, 3.5 A max.

•	-5 V  	    0 A min, 0.3 A max

•	−12 V 	    0 A min, 0.3 A max


Main Logic Board Jumpers

Jumper pins allow you to set specific computer parameters. They are set by changing the pin location of jumper blocks.  Note that the square pin of each jumper block is pin 1. A jumper block is a small plastic-encased conductor (shorting plug) that slips over the pins.  To change a jumper setting, remove the jumper from its current location with your fingers.  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

CAUTION
Do not touch any electronic component unless you are safely grounded.  Wear a grounded wrist strap or touch an exposed metal part of the system box chassis.  A static discharge from your fingers can result in permanent damage to electronic components.

 Illustration

See also:	Main Logic Board Jumper Settings


Main Logic Board Jumper Settings

(1) = factory default setting

Feature	Description	Setting
Setup control	Enable Disable(1)	J25, pins 1 and 2 jumpered J25, pins 2 and 3 jumpered(1)
Serial boot control	Enable Disable(1)	J7, pins 1 and 2 jumpered J7, pins 2 and 3 jumpered(1)
Serial boot control	Enable Disable(1)	J8, pins 1 and 2 jumpered J8, pins 2 and 3 jumpered(1)
CPU frequency	33/66/100 MHz(1) 25/50 MHz	J6, pins 1 and 2 jumpered(1) J6, pins 2 and 3 jumpered
CPU type	i486-SX/DX/DX2 P24D, P24T, P24CT	J50, open J50, jumpered
Diskette write control	Enable Disable(1)	J26, pins 1 and 2 jumpered J26, pins 2 and 3 jumpered(1)
EEPROM write control	Enable Disable(1)	J24, pins 1 and 2 jumpered J24, pins 2 and 3 jumpered(1)
CPU frequency	25 MHz(1) 33 MHz	J6, pins 1 and 2 jumpered(1) J6, pins 2 and 3 jumpered


Main Logic Board Jumper Locations

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Computer Messages

These Help topics list the Celebris 466/4100 computer messages you might see or hear when you turn on power.  The computer messages are grouped as follows:

•	POST and Boot Messages

•	Beep Codes


POST and Boot Messages
POST & Boot Messages

The POST displays messages to alert you to errors in hardware, software, and firmware or to provide operating information about your computer.

Each time the POST displays a message on your screen, the computer's speaker beeps twice.  If an error occurs before the monitor is initialized, specific beep codes sound to alert you to a problem. The following table lists a general grouping of system messages.  In addition, each message is accompanied by text describing the message and in most cases, a recommended solution to the problem.

	NOTE Italics indicate variable parts of a message such as memory addresses, hexadecimal values, and so on.  These messages can differ at each occurrence.
Message	Description/Solution
nnnn Cache SRAM Passed	Where nnnn is the amount of computer cache (in kilobytes) that tested successfully.
Diskette drive A error Diskette drive B error	Run the BIOS Setup utility.  Check all connections.  If the problem persists, contact your Digital service representative.
Entering SETUP	BIOS Setup utility runs.
Extended RAM Failed at offset: nnnn	Extended memory failed or configured incorrectly. Make sure SIMMs are installed correctly (see Chapter 4).  If the problem persists, contact your Digital service representative. Run the BIOS Setup utility and restore all settings to original values.
Extended RAM Passed	Where nnnn is the amount of extended memory (in kilobytes) that tested successfully.
Failing Bits: nnnn	nnnn is a map of the bits at the RAM address which failed the memory test. Run the BIOS Setup utility and restore all to original values. If the problem persists, contact your Digital service representative.
Fixed Disk 0 Failure Fixed Disk 1 Failure Fixed Disk Controller failure	Run the BIOS Setup utility.  Check all connections.  If the problem persists, contact your Digital service representative.
Incorrect Drive A type - run SETUP Incorrect Drive B type - run SETUP	Diskette drive A and/or B not correctly identified in the BIOS Setup utility. Run the BIOS Setup utility and properly identify diskette drive A and/or B.
Invalid NVRAM media type	NVRAM access failed. Run the BIOS Setup utility and restore all settings to original values. If the problem persists, contact your Digital service representative.
Keyboard controller error Keyboard error Keyboard locked - Unlock key switch	Check the keyboard connection.  If the connection is secure, the keyboard or keyboard controller might have failed.  If the problem persists, contact your Digital service representative.
Monitor type does not match CMOS - Run SETUP	Run the BIOS Setup utility and set the correct monitor type.
Operating system not found	The operating system cannot be found on drive A or drive C. Run the BIOS Setup utility and correctly identify drive A or drive C. Correctly install the operating system.  Refer to the supplied operating system documentation..
Parity check 1 nnnn Parity check 2 nnnn	Parity error found in the computer bus.  The BIOS attempts to locate the address and displays it on the your monitor screen. Run the BIOS Setup utility and restore all settings to original values. If the problem persists, contact your Digital service representative.
Press <F1> to resume, <F2> to Setup	This message appears after any recoverable error message. Press <F1> to reboot or <F2> to enter the BIOS Setup utility to make any necessary changes.
Real time clock error	Real-time clock failed BIOS test. Replace real-time clock and then run the BIOS Setup utility to restore previous configuration information.
Shadow RAM Failed at offset: nnnn	Shadow RAM failed. Run the BIOS Setup utility and disable failed shadow memory region.
nnnn Shadow RAM passed	Where nnnn is the amount of shadow RAM (in kilobytes) that tested successfully.
System battery is dead - Replace and run SETUP	Replace real-time clock and then run the BIOS Setup utility to restore previous configuration information.
System BIOS shadowed	This indicates that your computers BIOS was successfully copied to shadow RAM.
System cache error - Cache disabled	RAM cache failed. Run the BIOS Setup utility and restore all settings to original values. If the problem persists, contact your Digital service representative.
System CMOS checksum bad - run SETUP	System RAM failed. Run the BIOS Setup utility and restore all settings to original values. If the problem persists, contact your Digital service representative.
nnnn System RAM passed	Where nnnn is the amount of system RAM (in kilobytes) that tested successfully.
System timer error	Your computers timer test failed. Run the BIOS Setup utility and restore all settings to original values. If the problem persists, contact your Digital service representative.
UMB upper limit segment address: nnnn	Displays the address of the upper limit of UMB.  This indicates the released segments of the BIOS that can be reclaimed by a virtual memory manager.
Video BIOS shadowed	This indicates that your computers video BIOS was successfully copied to shadow RAM.


Beep Codes

If the POST finds an error and cannot display a message, the computer's speaker emits a series of beeps to indicate the error and places a value in I/O port 80h.

For example, a video failure or configuration error is indicated by a 1-2 beep code (a burst of three beeps, one long beep, followed by two short beeps).

The following table lists the beep codes and the values the POST writes to I/O port 80h when it encounters a fatal error.  Fatal errors (errors that lock up your computer) are generally the result of a failed main logic board or some other add-on component (SIMM, BIOS, computer battery, etc.).  If you cannot resolve problems using the troubleshooting procedures in Chapter 5, contact your Digital service representative.

Beep Code	Error  Message
1-2	Video failure or configuration error
2-2-3	BIOS ROM checksum
3-1-1	Test DRAM refresh
3-1-3	Test keyboard controller
3-4-1	Test 512K base address lines
3-4-3	Test 512K base memory
2-1-2-3	Check ROM copyright notice
2-2-3-1	Test for unexpected interrupts


Device Mapping

These Help topics list your computer's device mapping.

Your computer's memory and address locations are allocated at the factory to operate within a standard PC environment.  Your computers Plug and Play capabilities can also allocate memory and address locations based on the types of Plug and Play expansion boards you have installed.  However, due to the number of optional devices and/or non-Plug and Play expansion boards that are available, sometimes memory and address locations need to be changed.  For example, some non-Plug and Play 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.  If not, contact the option or software manufacturer for further information.

CPU Memory Address Map ( Full Range)

CPU Memory Address Map (PC Compatibility Range)

CPU I/O Address Map

I/O Address Map

Computer Interrupt Levels

DMA Channel Assignment

PCI Configure Space Address Map

See also:	Configuring Your Computer


CPU Memory Address Map (Full Range)

Range	Function	Notes
0 KB to 512 KB	Main memory	PC compatibility range
512 KB to 1024 KB	Main memory	PC compatibility range (ISA memory lower limit)
1 MB to 16 MB	Main memory Memory space gap	ISA memory upper limit
16 MB to 128 MB	Main memory	Computer memory upper limit
128 MB to 4 GB	PCI memory


CPU Memory Address Map (PC Compatibility Range)

Address Range	Function	Size
00000 to 7FFFF	Main memory	512 KB
80000 to 9FFFF	Main/PCI/ISA memory	128 KB
A0000 to BFFFF	PCI/ISA video buffer memory	128 KB
C0000 to C7FFF	Video memory BIOS	32 KB
C8000 to DFFFF	PCI/ISA card BIOS and buffer memory	96 KB
E0000 to EFFFF	ISA/PCI adapter RAM after POST completes Used by BIOS Setup during POST	64 KB
F0000 to FFFFF	System BIOS memory	64 KB


CPU I/O Address Map

Range (hexadecimal)	Function
0000 to 0CF7	PCI I/O space
0CF8	Configuration space enable register
0CF9	Turbo and reset control register
0CFA to BFFF	PCI I/O space
C000 to CFFF	PCI configuration space
D000 to FFFF	PCI I/O space


I/O Address Map

Range (hexadecimal)	Function
060 to 064	Keyboard/mouse controller
0F0 to 0FF	Math co-processsor
1F0 to 1F7	Turbo and reset control register
278 to 27F	LPT2 (if enabled)
2F8 to 2FF	COM2 (if enabled)
378 to 37F	LPT1 (if enabled)
3BC to 3BE	LPT3 (if enabled)
3F0 to 3F7	Diskette controller (if enabled)
3F8 to 3FF	COM1 (if enabled)


Computer Interrupt Levels

Interrupt Number	Interrupt Source
IRQ1	Keyboard controller
IRQ3	COM2 (if enabled)
IRQ4	Diskette drive (if enabled)
IRQ7	LPT1, LPT2, LPT3 (if enabled)
IRQ12	Mouse interrupt
IRQ13	Math co-processor
IRQ14	Hard disk drive (if enabled)


DMA Channel Assignment

Channel	Controller	Function
0	1	Refresh
1	1	Not used
2	1	Diskette controller (if enabled)
3	1	Not used
4	2	Cascade DMA
5	2	Not used
6	2	Not used
7	2	Not used


PCI Configure Space Address Map

Range (hexadecimal)	Function
C0xx	CPU bridge
C1xx	Not used
C2xx	ISA bridge
C6xx	PCI slot 1
C7xx	PCI slot 2