Mitsubishi Electric APRICOT FT//EX User manual

apricot
FT//ex
USER'S MANUAL
BENUTZERHANDBUCH
MITSUBISHI ELECTRIC

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Apricot FT//ex
Owner's Handbook

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IBMandPS/2areregisteredtrademarksofInternationalBusinessMachinesCorporation.
IntelisaregisteredtrademarkofIntelCorporation.
MS-DOSisaregistered trademarkofMicrosoftCorporation.
Otherbrand andproductnamesaretrademarksand/orregisteredtrademarksoftheir
respectiveholders.
Informationcontained inthisdocumentissubjecttochange withoutnoticeanddoesnot
representacommitmenton thepart ofApricotComputersLimited.Thesoftware
describedinthis manualisfurnishedunder a licenseagreement.Thesoftware maybe
usedorcopiedonlyin accordance with the termsofthisagreement.
It is against the law to copy any disk supplied for any other purpose than the purchaser’s
personaluse.
Allrightsreserved;no use ordisclosurewithoutwritten consent.
Copyright©1993
Publishedby
ApricotComputersLimited
3500Parkside
BirminghamBusinessPark
B377YS
MITSUBISHIELECTRIC
PrintedintheUnitedKingdom
Partno.15220231

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IMPORTANT SAFETY
INSTRUCTIONS
1. Read these instructions carefully. Save these instructions for fu-
ture reference.
2. Follow all warnings and instructions marked on the product.
3. Unplug this product from the wall outlet before cleaning. Do not
use liquid cleaners or aerosol cleaners. Use a damp cloth for
cleaning.
4. Do not use this product near water.
5. Do not place this product on an unstable cart, stand, or table. The
product may fall, causing serious damage to the product.
6. Slots and openings in the cabinet and the back or bottom are
provided for ventilation; to ensure reliable operation of the product
and to protect it from overheating, these openings must not be
blocked or covered. The openings should never be blocked by
placing the product on a bed, sofa, rug, or other similar surface.
This product should never be placed near or over a radiator or heat
register, or in a built-in installation unless proper ventilation is
provided.
7. This product should be operated from the type of power indicated
on the marking label. If you are not sure of the type of power
available, consult your dealer or local power company.
8. This product is equipped with a 3-wire grounding-type plug, a plug
havingathird(grounding)pin. Thisplugwillonlyfitintoa grounding-
type power outlet. This is a safety feature. If you are unable to
insert the plug into the outlet, contact your electrician to replace
your obsolete outlet. Do not defeat the purpose of the grounding-
type plug.

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9. Do not allow anything to rest on the power cord. Do not locate this
product where persons will walk on the cord.
10. If an extension cord is used with this product, make sure that the
total ampere rating of the equipment plugged into the extension
corddoes not exceed theextension cord ampere rating. Also,make
sure that the total rating of all products plugged into the wall outlet
does not exceed 15 amperes.
11. Never push objects of any kind into this product through cabinet
slots as they may touch dangerous voltage points or short out parts
that could result in a fire or electric shock. Never spill liquid of any
kind on the product.
12. Do not attempt to service this product yourself, as opening or
removing covers may expose you to dangerous voltage points or
other risks. Refer all servicing to qualified service personnel.
13. Unplug this product from the wall outlet and refer servicing to
qualified service personnel under the following conditions:
a. When the power cord or plug is damaged or frayed
b. If liquid has been spilled into the product
c. If the product has been exposed to rain or water
d. If the product does not operate normally when the operating
instructions are followed. Adjust only those controls that are
coveredbythe operating instructionssinceimproperadjustment
of other controls may result in damage and will often require
extensive work by a qualified technician to restore the product
to normal condition.
e. If the product has been dropped or the cabinet has been
damaged
f. If the product exhibits a distinct change in performance,
indicating a need for service

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14. Replace battery with the same type as the product’s battery we
recommend. Use of another battery may present a risk of fire or
explosion. Refer battery replacement to a qualified serviceman.
15. Warning! Battery may explode if not handled properly. Do not
recharge,disassembleordisposeofinfire. Keepawayfromchildren
and dispose of used battery promptly.
16. Use only the proper type of power supply cord set (provided in your
keyboard/manual accessories box) for this unit. It should be a
detachable type: UL listed/CSA certified, type SVT/SJT, rated 6A
125V minimum, VDE approved or its equivalent. Maximum length
is 15 feet (4.6 meters).

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FCC Class B Radio Frequency
Interference Statement
Note:
This equipment has been tested and found to comply with the limits for
a Class B digital device, pursuant to Part 15 of FCC Rules. These limits
are designed to provide reasonable protection against harmful
interferenceina residential installation. This equipment generates, uses,
and can radiate radio frequency energy and, if not installed and used in
accordancewiththeinstructions,maycauseharmful interference to radio
communications. However, there is no guarantee that interference will
notoccurin a particular installation. Ifthisequipment does cause harmful
interference to 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:
1. Reorient or relocate the receiving antenna.
2. Increase the separation between the equipment and receiver.
3. Connect the equipment into an outlet on a circuit different from that
to which the receiver is connected.
4. Consult the dealer or an experienced radio/television technician for
help.
Notice 1:
The changes or modifications not expressly approved by the party
responsible for compliance could void the user’s authority to operate the
equipment.
Notice 2:
Shielded interface cables and A.C. power cord, if any, must be used in
order to comply with the emission limits.

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T a b l e o f C o n t e n t s
About This Manual
1System Housing
1.1 Getting Started............................................................... 1-1
1.1.1 Selecting a Site..................................................1-1
1.1.2 Unpacking the System ......................................1-2
1.1.3 Positioning the System......................................1-3
1.1.4 Moving the System ............................................ 1-5
1.2 Features......................................................................... 1-6
1.2.1 Front Panel ........................................................1-6
1.2.2 Rear Panel......................................................... 1-8
1.3 Connecting the Components....................................... 1-10
1.4 Installing Options ......................................................... 1-14
1.4.1 ESD Precautions .............................................1-14
1.4.2 Opening the System........................................1-14
1.4.3 Installing and Removing Expansion Boards....1-20
1.4.4 Installing Drives ...............................................1-22
1.4.5 Arranging the Cables.......................................1-28
2System Board
2.1 Major Components ........................................................ 2-2
2.2 Upgrading the Memory.................................................. 2-4
2.2.1 Installing SIMMs ................................................2-6
2.2.2 Removing SIMMs .............................................. 2-7
2.2.3 Reconfiguring the System .................................2-7
2.3 Upgrading the CPU ....................................................... 2-8

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2.4 SCSI Feature ................................................................. 2-9
2.4.1 Using SCSI ........................................................ 2-9
2.5 Jumper Settings........................................................... 2-10
2.6 Error Messages ........................................................... 2-12
2.6.1 Software Error Messages................................2-12
2.6.2 System Error Messages ..................................2-12
2.6.3 Correcting Error Conditions.............................2-15
2.7 Address Maps and Interrupt Table .............................. 2-16
2.7.1 System Memory Map.......................................2-16
2.7.2 I/O Address Map..............................................2-18
2.7.3 Interrupt Levels................................................2-20
3486 CPU Board
3.1 Upgrading the CPU ....................................................... 3-3
3.1.1 Installing the Upgrade CPU............................... 3-3
3.2 Upgrading the Second-Level Cache ............................. 3-4
3.3 Jumper Settings............................................................. 3-6
4Pentium CPU Board
4.1 Upgrading to Dual CPUs ............................................... 4-3
4.1.1 Installing the Second CPU ................................4-3
4.2 Upgrading the Second-Level Cache ............................. 4-4
4.3 Upgrading the Memory.................................................. 4-5
4.4 Jumper Settings............................................................. 4-6
5Configuring the System
5.1 Basic System Configuration (486 CPU) ........................ 5-3
5.1.1 The Real-Time Clock.........................................5-5
5.1.2 Diskette Drives .................................................. 5-5
5.1.3 Fixed Disk Drives............................................... 5-5

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5.1.4 System Memory.................................................5-6
5.1.5 Math Coprocessor ............................................. 5-6
5.1.6 Video Display..................................................... 5-6
5.1.7 Communication Settings....................................5-7
5.1.8 Memory Test ......................................................5-7
5.2 Basic System Configuration (Pentium CPU)................ 5-8
5.3 Advanced System Configuration (486 CPU)................ 5-9
5.3.1 Shadow RAM................................................... 5-11
5.3.2 Internal Cache ................................................. 5-11
5.3.3 System Cache ................................................. 5-11
5.3.4 SCSI I/O ROM Mapping ..................................5-12
5.4 Advanced System Configuration (Pentium CPU)........ 5-13
5.5 System Security........................................................... 5-15
5.5.1 Disk Drive Control............................................5-15
5.5.2 On Board Communication Ports......................5-15
5.5.3 Setup Password ..............................................5-16
5.5.4 Power On Password........................................5-17
5.6 IDE Fixed Disk Types .................................................. 5-18
6EISA Configuration Utility
6.1 Functions ....................................................................... 6-1
6.2 Program Menu Organization ......................................... 6-2
6.3 Starting the ECU............................................................ 6-2
6.3.1 Main Menu.........................................................6-3
6.3.2 Main Menu Selections .......................................6-3
6.3.3 Configuring the Computer .................................6-4
6.3.4 EISA Board Configuration Files.........................6-5
6.3.5 Configure Computer - Basic Method.................6-6

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6.4 Advanced Configuration ................................................ 6-7
6.4.1 Advanced Configuration Menu Selections ........6-9
6.4.2 Using the Advanced Configuration Menus ......6-14
6.4.3 Configuring an ISA Option Without a CFG file 6-18
6.5 Solving Resource Conflicts ......................................... 6-18
6.6 Options in using the ECU ............................................ 6-19
6.6.1 Starting the ECU From a Fixed Disk ...............6-19
6.6.2 Starting the Configure Computer Selection from
MS-DOS ..........................................................6-21

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L i s t o f F i g u r e s
1-1 Standing the System Alone..................................................1-3
1-2 Standing the System Against a Wall.................................... 1-4
1-3 Moving the System ..............................................................1-5
1-4 Front Panel ..........................................................................1-6
1-5 Rear Panel ...........................................................................1-8
1-6 Connecting the Keyboard ..................................................1-10
1-7 Connecting a Mouse.......................................................... 1-11
1-8 Connecting a Monitor......................................................... 1-11
1-9 Connecting a Printer ..........................................................1-12
1-10 Connecting the Power Cables ...........................................1-13
1-11 Opening the Upper Front Panel Cover ..............................1-15
1-12 Opening the Lower Front Panel Cover ..............................1-16
1-13 Removing the Front Panel Cover and Frame....................1-17
1-14 Opening the System Housing............................................1-18
1-15 Inside Components............................................................1-19
1-16 Removing a Bracket ..........................................................1-20
1-17 Installing a Board ...............................................................1-21
1-18 Attaching the Drive Guides................................................1-22
1-19 Installing a 5.25-inch Diskette Drive ..................................1-23
1-20 Removing a 5.25-inch Diskette Drive ................................1-24
1-21 Pulling Out a Fixed Disk Drive Drawer ..............................1-25
1-22 Installing a Fixed Disk Drive ..............................................1-26
1-23 Inserting the Drive Drawer.................................................1-27
1-24 Clipping the Cables with the Cable Clamp ........................1-28

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2-1 System Board Layout ..........................................................2-3
2-2 Installing a SIMM .................................................................2-6
2-3 System Board Jumper Settings .........................................2-10
3-1 486 CPU Board Layout........................................................3-2
3-2 486 CPU Board Jumper Locations......................................3-6
4-1 Pentium CPU Board Layout................................................. 4-2
4-2 Pentium CPU Board Jumper Locations............................... 4-6
6-1 Advanced Configuration
(System—Open Selected)................................................... 6-7

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L i s t o f T a b l e s
1-1 Features and Functions of the Front Panel .........................1-7
1-2 Features and Functions of the Rear Panel..........................1-9
2-1 Memory Configurations with 486 CPU board ......................2-4
2-2 System Board Jumper Settings ......................................... 2-11
2-3 System Error Messages ....................................................2-12
2-4 System Memory Map.........................................................2-16
2-5 System I/O Address Map ...................................................2-18
2-6 Interrupt Requests Used....................................................2-20
3-1 Second-level Cache Upgrade (486 CPU Board)................3-5
3-2 486 CPU Board Jumper Settings ........................................ 3-7
4-1 Second-level Cache Upgrade
(Pentium CPU Board) ..........................................................4-4
4-2 Memory Configurations with Pentium CPU board...............4-6
4-3 Pentium CPU Board Jumper Settings ................................. 4-7
6-1 Advanced Configuration Menu Bar Selections....................6-9

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AboutThis Manual
Audience
This User's Manual is intended for three types of reader:
.Users of application software in a business or personal-computing
environment
.Business and technical buyers who want to develop software and hardware
packages to customize the system for a specific environment
.System designers and programmers who intend to modify the system
hardware and configure the system
Purpose and Scope
This manual tells you how to install, configure and operate the system.
In addition to giving information about the system hardware and software, it
also explains how to install optional devices and how to deal with operating
problems and error messages.

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Organization
This manual consists of six chapters.
Chapter 1, System Housing, describes the different parts of the system unit
such as switches, status indicators, connectors, and hardware components. It
explains how to set up and start the system. It also shows how to install
optional hardware devices. Guidelines for troubleshooting minor hardware
problems are given at the end of the chapter.
Chapter 2, System Board, describes the features and components of the system
board. It also includes jumper settings and memory configurations.
Chapter 3, 486 CPU Board, describes the features of the 486 CPU board,
CPU and second-level cache upgrade, and jumper settings.
Chapter 4, Pentium CPU Board, presents the features of the Pentium CPU
board. It explains how to upgrade to dual Pentium CPUs, adjust jumper settings,
and upgrade memory and second-level cache.
Chapter 5, Configuring the System, shows how to use the BIOS SETUP
utility to configure your system. It includes a fixed disk type table at the end
for your reference.
Chapter 6, EISA Configuration Utility, tells how to use the ECU utility
bundled with your system to configure your computer and the boards or options
you add to the system.

SystemHousing 1-1
C h a p t e r 1
System Housing
This chapter describes the system housing features and the additional
components that can be installed. It also has instructions on installing and
removing these components.
1.1 Getting Started
The preinstallation process involves the following:
.Selecting a site
.Unpacking the components
.Positioning the system
.Moving the System
1.1.1 Selecting a Site
Consider the following when selecting a site for the system:
1. Find a place that is comfortable for you. Avoid dusty areas of extreme
temperature and humidity.
2. Cable paths should not run near equipment that might cause
electromagnetic or frequency interference such as radio transmitters,
television sets, copying machines, heaters, or air conditioners.
3. Find a location close to an electrical outlet. Avoid using extension cords.
4. Leave enough space around the system for normal air circulation.

1-2 Owner'sHandbook
1.1.2 Unpacking the System
Unpack the contents of the system box and the accessory box. Save the packing
materials in case you need to ship the system in the future.
The system box contains the system with one 3.5-inch diskette drive, a SCSI
CD-ROM drive and at at least one fixed disk drive installed.
The accessory box contains the following:
.Apricot FT//ex Owner's Handbook
.Power Connection Guide
.Graphics Accelerator Card User's Guide
.System Utilities Diskette
.EISA Configuration Diskette
.SCSI Drivers Pack
.MS-DOS 6.0
.Power cord
.Keyboard
.Mouse
For your convenience, Microsoft MS-DOS is pre-installed in a small (typically
15 Mbyte) primary DOS partition on your system's first fixed disk. A DOS
mouse driver, MOUSE.SYS, is provided as part of the pre-installation. Note
that this driver is not included on the DOS installation diskettes, and should
therefore be backed up as soon as possible.

SystemHousing 1-3
1.1.3 Positioning the System
Arrange the feet of the system in such a way that the system is standing stably.
Figure 1-1 shows the correct position of the feet when standing the system
alone.
Figure 1-1 Standing the System Alone