Apricot XEN Pentium 60 User guide

apricot
XEN Pentium 60/66
OWNER'S HANDBOOK
MITSUBISHI ELECTRIC

Chapter
OWNER'S HANDBOOK

Microsoft, MS, and MS-DOS are registered trademarks, and Windows is a trademark, of Microsoft
Corporation.
IBM is a registered trademark, and VGA and PS/2 are trademarks, of International Business
Machines Corporation.
Intel is a registered trademark, and Pentium and OverDrive are trademarks, of Intel Corporation.
Information contained in this document is subject to change without notice and does not
represent a commitment on the part of Apricot Computers Limited. Any software described in
this manual is furnished under a license agreement. The software may be used or copied only in
accordance with the terms of this agreement. It is against the law to copy any disk supplied for any
purpose other than the purchaser’s personal use.
All rights reserved; no use or disclosure without written consent.
Copyright © Apricot Computers Limited 1994
Published by
Apricot Computers Limited
3500 Parkside
Birmingham Business Park
Birmingham B37 7YS
MITSUBISHI ELECTRIC
Printed in the United Kingdom
Part No. 15273131
Revision 01

XEN OWNER'S HANDBOOK I
Safety and Regulatory Notices
Safety
Safety and Regulatory Notices
Read the separate Power Connection Guide before using the
Apricot XEN for the first time. Information in the Owner’s
Handbook relating to connection to the AC power supply may
not apply outside the United Kingdom.
The Apricot XEN uses a safety ground and must be earthed.
The system unit AC power cord is its “disconnect device”.
Ensure that the system unit is positioned close to the AC
power outlet, and that the plug is easily accessible.
It is imperative that the Apricot XEN is set to the correct
voltage range before use. If not, the machine may be irreparably
damaged.
Turn off the Apricot XEN and unplug all power cords before
moving the system unit, cleaning the computer or removing the
system unit top cover.
The CD-ROM drive contains a laser system which is harmful to
the eyes, and is classified as a CLASS 1 LASER PRODUCT
accordingtoIEC825Radiation Safety of Laser Products (Equipment
Classification: Requirements & User's Guide). Do not attempt to
disassemble the CD-ROM drive; if a fault occurs, call an
authorized Apricot maintainer. Use the CD-ROM drive only as
described in this manual; failure to do so may result in exposure
to hazardous radiation.
To prevent fire and electric shock, do not expose any part of
the system unit to rain or moisture.
When positioning the Apricot XEN system unit, monitor and
keyboard, take into account any local or national regulations
relating to ergonomic requirements.
TheRealTimeClockchiponthemotherboardincludesalithium
battery. This component may explode if handled incorrectly.
Do not attempt to recharge, disassemble or dispose of in fire.
Keep away from children.
Do not dispose of the Real Time Clock chip, or any assembly
which contains it in domestic waste.

II XEN OWNER'S HANDBOOK
Safety and Regulatory Notices
Safety
Power cord The power cord packed with the Apricot XEN complies with
requirements the safety standards applicable in the country in which it is sold.
Use only this power cord; do not substitute a power cord from
any other equipment.
If you wish to use the computer in another country, you must
ensure that you use a power cord and plug which complies with
the safety standards of that country.
Plug Standard Countries
250V
E
LN
BS1363A United Kingdom
Austria, Belgium, Finland,
E
NL
250V
SHUCO France, Germany, Holland,
Italy, Norway, Sweden
250V
NL
E
SRAF 1962/ Denmark
DB16/87
E
NL
125V
NEMA 5-15P USA, Canada
250V
ASE 1011 Switzerland
250V
AS 3112-1981 Australia
The power cord fittings must bear the certification mark of the
agency responsible for evaluation.
Refer to your authorized Apricot supplier if you ever require
additional or alternative power cables.

XEN OWNER'S HANDBOOK III
Safety and Regulatory Notices
Safety
UK plug wiring instructions
Noise levels German Acoustic Noise Regulation
Sound power level is less than 70 dB(A) according to DIN
45635 Part 19 (ISO 7779).
Die Deutsche Akoustische Lärm-Regulierung
Der Grad der Klangstärke ist weniger als 70 dB(A) je nach DIN
45635 Teil 19 (ISO 7779).
The CD-ROM drive is
classified as a CLASS 1
LASER PRODUCT.
The CLASS 1 LASER
PRODUCT label is
located on the under
side of the system unit.
CLASS 1
LASER PRODUCT TO IEC 825
LASER KLASSE 1
PRODUKT NACH IEC 825
IMPORTANT Power
Cable Connections
This appliance is supplied with a mains lead that
has a non-removable moulded plug. If the socket
outlets are not suitable for the plug supplied with
this appliance, it should be cut off and an
appropriate three-pin plug fitted.
Note: The plug severed from the mains lead must
be destroyed, as a plug with the bared flexible
cord is hazardous if engaged in a live socket
outlet.
The following wiring information should be
employed when adding the replacement plug.
The wires in the mains lead are coloured in
accordance with the following code:
Green and Yellow Earth
Blue Neutral
Brown Live
As the colours of the wires in the mains lead of
this appliance may not correspond with the
coloured markings identifying the terminals in
your plug, proceed as follows.
The wire which is coloured green-and-yellow
must be connected to the terminal in the plug
which is marked with the letter E, or by the earth
symbol or coloured green or green-and-
yellow.
The wire which is coloured blue must be connected
to the terminal which is marked with the letter Nor
coloured black. The wire which is coloured brown
must be connected to the terminal which is marked
with the letter Lor coloured red.
Use a fuse approved by ASTAto BS1362, i.e.
carries the
ASA
mark.
Always replace the fuse cover, never use the plug
with the fuse cover omitted.
Replace with same colour fuse cover only.
Replacement fuse covers may be obtained from
your dealer.
WARNING -
THIS APPLIANCE MUST BE
EARTHED
N
L
E
This diagram
shows the wiring
inside the moulded
plug. Use it as a
guideline if you
need to re-fit a plug
of a similar type to
the mains lead.

IV XEN OWNER'S HANDBOOK
Safety and Regulatory Notices
Safety
Refer to the labels on the rear of your computer to establish which of the following warnings
apply.
FCC Class A
Warning - this equipment has been tested and found to comply with the limits for a Class A
computing device, pursuant to Subpart J of Part 15 of FCC rules. Only peripherals (computer
input/output devices, terminals, printer, etc.) certified to comply with the Class A limits may be
attached to this computer. Operation of this equipment in a residential area may cause
unacceptable interference to radio and television reception requiring the operator to take
whatever steps are necessary to correct the interference.
FCC Class B
Warning - this equipment has been certified to comply with the limits for a Class B computing
device, pursuant to Subpart J of Part 15 of FCC rules. Only peripherals (computer input/output
devices, terminals, printer, etc.) certified to comply with the Class B limits may be attached to this
computer. Operation with non-certified peripherals is likely to result in interference with radio
and TV reception.
Radio and television interference
The computer described in this manual generates and uses radio frequency energy for its
operation. If it is not installed and used properly, in strict accordance with the manual, it may
cause interference with radio and television reception.
The computer has been tested and found to comply with the RF emission limits for an FCC Class
B computing device which is intended to provide reasonable protection against such interference
in a residential installation. However, there is no guarantee that interference will not occur in a
particular installation.
If this equipment does cause interference with radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
•Move the computer away from the receiver being interfered with.
•Turn the computer with respect to the receiver.
•Turn the receiver with respect to the computer.
•Plug the computer into an outlet that is on a different branch circuit from the receiver.
•Disconnect and remove any I/O cables that are not being used.
•Unplug and remove any expansion cards that are not being used, and replace the relevant
blanking plates.
•Make sure that the computer is plugged into a grounded outlet.
If you need additional help, consult your supplier. You may find the following booklet helpful: How
to Identify and Resolve Radio-TV Interference Problems. This booklet is available from the US
Government Printing Office: Washington DC 20402 - Stock No. 004-000-000345-4.
DOC Class A
The computer described in this manual complies with: Canadian DOC radio interference
regulations CRCc 1374 governing Class A digital devices.
DOC Class B
The computer described in this manual complies with: Canadian DOC radio interference
regulations CRCc 1374 governing Class B digital devices.

Chapter
CONTENTS

XEN OWNER'S HANDBOOK I
Contents
Contents
CONTENTS
1 Introducing the Apricot XEN
2 Getting Started with the Apricot XEN
General advice 2/2
Connecting the components 2/3
Turning on and booting the computer 2/4
Preparing a second hard disk 2/6
The software on your computer 2/6
Using the SETUP utility 2/7
Using Apricot Help 2/8
3 Operating the Apricot XEN
Using the front panel controls 3/2
Using the 3.5" diskette drive 3/3
Using the 5.25" floppy disk drive 3/4
Using the SLCD CD-ROM drive 3/5
Using the Irwin FTD tape drive 3/7
Using the SCSI QIC tape drive 3/9
Using the SCSI DDS or DDS-DC tape drive 3/12
Using the SCSI CD-ROM drive 3/16
Using the Apricot XEN abroad 3/20
4 Caring for the Apricot XEN
Cleaning the Apricot XEN 4/2
Transporting the Apricot XEN 4/6

II XEN OWNER'S HANDBOOK
Contents
Contents
5Upgrading the Apricot XEN
Expansion cards 5/2
Memory upgrades 5/6
Processor upgrades 5/9
Installing additional video RAM 5/12
5.25" drives 5/13
3.5" hard disk drives 5/19
6 Using the SETUP utility
Introduction 6/1
Invoking SETUP 6/1
Using SETUP 6/2
Opening menu 6/3
Standard CMOS SETUP 6/4
Date 6/4
Time 6/4
Floppy drive A: 6/4
Floppy drive B: 6/4
Drive C, D, E, F: type 6/4
Drive C, D, E, F: timeout 6/5
Keyboard 6/5
Base Memory 6/5
Extended Memory 6/5
Advanced CMOS SETUP 6/5
Typematic Rate Programming 6/5
Hit <F1> Message Display 6/5
System Boot-up Num Lock 6/6
System Boot-up Sequence 6/6
System Boot Up CPU Speed 6/6
Cache Memory 6/6
Network Password Checking 6/6
ISA Linear Frame Buffer 6/6
Set Linear Frame Address To 6/6
Disable Shadow Memory Size 6/7
Disable Shadow Memory Base 6/7
Base Memory Size 6/7
IDE DMA Transfer Mode 6/7
IDE Multiple Sector Mode 6/7

XEN OWNER'S HANDBOOK III
Contents
Contents
Advanced CMOS SETUP continued
IDE LBA translation 6/7
Enhanced ISA Timing 6/8
ISA IRQ 9 6/8
ISA IRQ 10 6/8
ISA IRQ 11 6/8
Peripheral Management SETUP 6/8
Programming Option 6/8
Onboard Floppy Drive 6/8
Onboard IDE drive 6/9
First Serial Port Address 6/9
Second Serial Port Address 6/9
Parallel Port Address 6/9
IRQ active State 6/9
Parallel Port Mode 6/9
Configure with BIOS Defaults 6/9
Configure with Power-on Defaults 6/9
Change Password 6/10
Write to CMOS and Exit 6/10
Do Not Write to CMOS and Exit 6/10
7 Troubleshooting
Problems when starting 7/2
Troubleshooting charts 7/4
A Inside the Apricot XEN
Anti-static precautions A/2
Removing the top cover A/3
Configuring expansion cards A/4
Motherboard jumper settings A/14
B Technical Information
Specifications B/2
Physical characteristics B/6
Electrical characteristics B/7
Port characteristics B/8

Chapter
INTRODUCING THE APRICOT XEN
Chapter1

XEN OWNER'S HANDBOOK 1/1
Introducing the Apricot XEN
Chapter 1
1 INTRODUCING THE
APRICOT XEN
The Apricot XEN Pentium 60/66, is ideally suited for use as high
performance,general-purposepersonalcomputers,networked
business workstations and workgroup servers.
Read the separate Power Connection Guide before using
the Apricot XEN for the first time.

1/2 XEN OWNER'S HANDBOOK
Introducing the Apricot XEN
Chapter 1
Standard The standard features of the Apricot XEN Pentium 60/66 range
features include:
•IntelPentium system processor with OverDrive upgrade
capability.
•Two full-length, one half length 16-bit Industry Standard
Architecture (ISA) expansion card slots, and one full
length PCI slot.
•Standard 8 Mbytes of motherboard random access
memory (RAM) upgradable to 128 Mbytes by the use of
single in-line memory modules (SIMMs).
•SETUPconfiguration utility in read-only memory (ROM).
•On-board high performance PCI bus video based on an
ATI 68800AX controller. Equipped with at least 1 Mbyte
of video RAM.
•256 Kbyte system memory cache.
•PCI Integrated Drive Electronics (IDE) disk drive system.
•Extendedkeyboard, two-button mouse, parallel anddual
serial ports.
•1.44 Mbyte 3.5" diskette drive; 3.5" hard disk drive bay
with room for two one-inch drives; one 5.25" removable
media drive bay.
These standard features can be enhanced by various hard disk
and removable media drives, LAN adapter cards,andsoon.For
an outline of these options, see Chapter 5, “Upgrading the
Apricot XEN”.

XEN OWNER'S HANDBOOK 1/3
Introducing the Apricot XEN
Chapter 1
Unpacking On unpacking the computer, you should find:
•Apricot XEN system unit.
•Apricot/Mitsubishi monitor and accompanying User’s
Guide.
•Apricot extended keyboard and two-button mouse.
•System unit AC power cord appropriate for the country
of sale.
•System documentation.
•Microsoft MS-DOS pack.
•Microsoft Windows pack (if the system has a hard disk).
More elaborate systems may include software or hardware
options with accompanying installation diskettes and additional
documentation. Some of these options may have been factory-
configured or installed by your Apricot supplier.
Keep the cartons, boxes and packaging materials; you will need
them again if you have to transport the computer elsewhere.
Makea note of the manufacturer’sdata recorded on the various
components (product codes, serial numbers, etc.). You may
need this information if the XEN develops a fault.
Instructions for removing the top cover are given in Appendix
A, “Inside the Apricot XEN”.
Turn off the Apricot XEN and unplug all power cords
before removing the top cover.

1/4 XEN OWNER'S HANDBOOK
Introducing the Apricot XEN
Chapter 1
21
34
5

XEN OWNER'S HANDBOOK 1/5
Introducing the Apricot XEN
Chapter 1
1POWER button: press to turn the system on or off.
The green indicator on the button lights when the
system unit is powered.
2activity indicators, from left to right:
lights when a diskette, floppy disk or Irwin tape
drive is accessed (depending on the operating system).
lights when a hard disk drive is accessed (depending
on the operating system).
3door (shown closed): hinges down to reveal the
removable-media drive bay.
43.5" diskette drive:fittedasstandard in every Apricot
XEN system.
5system lock: prevents unauthorized access to the
inside of the system unit.

1/6 XEN OWNER'S HANDBOOK
Introducing the Apricot XEN
Chapter 1
11 12
10
13
9
10
245678
13

XEN OWNER'S HANDBOOK 1/7
Introducing the Apricot XEN
Chapter 1
1AC power outlet: where the monitor power cord
can plug in. Only Apricot-approved monitors should
be powered from this outlet.
2voltage selection switch: the Apricot XEN can be
set to operate with a 100-120 volt or 220-240 volt AC
power supply.
3AC power inlet: where the system unit AC power
cord plugs in.
4keyboard port: connect the keyboard to this port.
5mouse port: connect the (optional) Apricot mouse
to this port.
6serial port 1: (110 baud to 14.4k baud): typically used
for connecting an external modem or a serial printer
signal cable.
7serial port 2: (110 baud to 14.4k baud): typically used
for connecting an external modem or a serial printer
signal cable.
8parallel port that supports EPP and ECP
features: typically used for a printer signal cable.
9monitor port: connect the monitor signal cable to
thisport(ifyouare using theon-boardvideocontroller).
10 casing screws:loosen these to remove the top cover.
11 security loop: you can feed a security chain or cable
through this loop and secure it to prevent theft of the
system unit.
12 blanking plates: for Industry Standard Architecture
(ISA) expansion card slots.
13 air vent: do not block this vent or the system will
overheat.

1/8 XEN OWNER'S HANDBOOK
Introducing the Apricot XEN
Chapter 1
1
2
3
4
7
6
5
1motherboard: see the label inside the system unit lid
for up-to-date information on the layout of the
motherboard.
2expansion card slots: Three expansion slots, one half
length and one full length ISA, and one full length slot
which can be used by either an ISA or a PCI card. An
additional connector is provided on the rear of the
backplane,thisisanApricotproprietaryconnectorwhich
may be used in future developments of the XEN range.
3SIMM sockets: every XEN has 8 Mbytes of
motherboard memory which can be upgraded to 128
Mbytes by the use of single in-line memory modules.
4processor socket: insert an OverDrive processor
here to upgrade the processing power of your Apricot
XEN.
55.25" removable-media drive bay:may be occupied
by a removable media drive.
63.5" hard-disk drive bay: this bay has room for two
one-inch high IDE hard disk drives.
73.5" diskette drive:fittedasstandard in every Apricot
XEN system.