Mitsubishi Electric APRICOT FT4200 User guide

FT4200
Owner’s Handbook
NATIONAL
ACCREDITATION
OF CERTIFICATION
BODIES

APRICOT FT4200
OWNERS HANDBOOK

Adaptec is a registered trademark of Adaptec Inc.
Cirrus Logic is a trademark of Cirrus Logic Inc.
Intel and Pentium ®Pro are registered trademarks of Intel Corporation.
Microsoft, MS-DOS, Windows ®and Windows ®
NT are registered trademarks of
Microsoft Corporation in the US and other countries.
Other trademarks mentioned within this document and not listed above are the
properties of their respective owners.
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.
No part of this manual may be reproduced or transmitted in any form or by any
means electronic or mechanical including photocopying and recording, for any
purpose, without the express written permission of the publishers.
Copyright © Apricot Computers Limited 1996. All rights reserved.
Published by:
Apricot Computers Limited
3500 Parkside
Birmingham Business Park
Birmingham, England
B37 7YS
http://www.apricot.co.uk
Printed in the United Kingdom

Notices
SAFETY/1
SAFETY AND REGULATORY NOTICES
Power
Information in the Owner’s Handbook relating to connection to the AC
power supply may not apply outside the United Kingdom.
The computer uses a safety ground and must be earthed. The system unit
AC power supply cable is its ‘disconnect device’. Ensure that the system unit
is positioned close to the AC power outlet, and that the plug is easily
accessible.
The power supply within the FT4200 server automatically sets itself to the
appropriate voltage, there is no voltage selector switch. It is advisable to
avoid subjecting the power supply to voltages outside the ranges 100-120V
AC and 220-240V AC, (50/60 Hz).
To prevent fire and electric shock, do not expose any part of the computer to
rain or moisture.
Shut down the operation of the computer as described in the Owner’s
Handbook, turn off the battery isolator switch and unplug the power supply
cable before moving the system unit, cleaning the computer or removing the
side panels. An exception to this is removing the side panels before hot-
plugging a hard disk drive.
Power cord requirements
The AC power supply cable packed with the computer complies with the
safety standards applicable in the country in which it is first sold. Use only
this power supply cable.
Do not substitute a power supply cable from any other equipment.
If you wish to use the computer in another country, you must ensure that
you use an AC power supply cable and AC plug which complies with the
safety standards of that country.
The power supply cable fittings should bear the certification mark of the agency
responsible for evaluation within the country of use. Refer to your authorised
supplier if you ever need additional or alternative power supply cables.
Typical AC plugs
250V
E
L N
E
N L
250V
E
NL
125V
BS1363A SHUCO NEMA 5-15P
United Kingdom Austria, Belgium, Taiwan, Thailand
Finland, France,
Germany, Holland,
Italy, Norway, Sweden
NoteNote
Any ancillary equipment using an AC power supply cable should be earthed.

Notices
SAFETY/2
Laser
Any fitted CD-ROM drive contains a laser system which is harmful to the
eyes, and is classified as a CLASS 1 LASER PRODUCT according to
IEC825 Radiation Safety of Laser Products (Equipment Classification:
Requirements & User's Guide).
CLASS 1
LASER PRODUCT TO IEC 825
LASER KLASS 1
PRODUKT NACH IEC 825
The CLASS 1 LASER PRODUCT warning label, bearing similar
information to the sample above and in high visibility colours, is located on
the CD-ROM unit.
Do not attempt to disassemble the CD-ROM drive; if a fault occurs, call an
authorised maintainer. Use the CD-ROM drive only as described in this
manual. Failure to do so may result in exposure to hazardous radiation.
Ergonomic
When positioning the system unit, monitor and keyboard, take into account
any local or national regulations relating to ergonomic requirements.
Batteries
Small batteries
This product contains a replaceable lithium battery. Do not use a metal or
other conductive implement to remove the battery. If a short-circuit is
accidentally made between its positive and negative terminals, it may cause
the battery to explode.
Replace a discharged battery with one of the same type. Another type may
explode or ignite. Dispose of a discharged battery promptly and in
accordance with the manufacturer’s instructions.
The battery’s average life is between 3 and 5 years. Do not recharge,
disassemble or incinerate. Keep away from children. If in any doubt, contact
your supplier or an authorised maintainer.
UPS battery pack
The UPS is equipped with a replaceable battery pack. It will provide electric
power for your system for a specific period of time, depending on how many
hard disks or other devices are installed.
The battery pack contains lead acid batteries. In the EEC the directive
91/157/EEC (plus subsequent amendment 93/86/EEC) designates
batteries containing lead to be handled as a dangerous substance.
Similar regulations will apply in other countries.
As a result, the battery pack must only be removed by a qualified electrician
and must not be disposed of in domestic waste.

Notices
SAFETY/3
Standards
The applicable standards for the country of sale will be shown on the label
fixed to the rear of the system.
Safety
This product complies with the following European safety standards:
EN60950
and when applicable, will include the national deviations as required for the
following countries:
UK Germany Denmark etc.
This product also complies with the following International safety standards:
UL1950 (USA)
Electro-magnetic Compatibility
This product complies with the following European EMC standards:
Emissions EN55022 Class B * test dependant *
Immunity EN50082 Level 1 * test dependant *
This product also complies with the following International EMC standards:
VCCI level 2 (Japan)
NoteNote
All interconnecting and communication cables to the likes of printers, monitors,
or modems, should be less than 2 metres in length. If cable extensions have to be
used, ensure adequate earth connections are provided. All cables should be
screened.
Legalities
This equipment complies with the relevant clauses of following European
Directives:
Low voltage Directive 73/23/EEC
EMC Directive 89/336/EEC
CE marking Directive 93/68/EEC

Notices
SAFETY/4
IMPORTANT
Power Cable Connections - UK ONLY
This equipment is supplied with an AC power lead that has a non-removable
moulded plug. If the AC supply outlets to be used are not suitable for the
lead supplied with this computer, a new complete and suitable power lead
should be obtained. If this is not possible, the existing plug should be cut off
and the following guidelines observed:
WarningWarning
The plug severed from the mains lead must be destroyed, as a plug with the bared
flexible cord is extremely hazardous if engaged in a live socket outlet.
The following wiring information should be employed when adding any
replacement plug.
The wires in the power lead are coloured in accordance with the following code:
Green and Yellow Earth
Blue Neutral
Brown Live
The colours of the wires in the mains lead supplied with this computer may
not correspond with the 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.
WARNINGWARNING
THIS APPLIANCE MUST BE EARTHED.
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 L
or coloured red.
Always replace the fuse with one of the same type and rating, 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.
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 AC lead.
N
L
E

CONTENTS
CONTENTS
Section One Chapter / page
This section explains the setting up of your system and using the Front Panel
Controls. There is information about back panel functions and ports, security
aspects and the EISA Configuration Utility. This section also gives you details
about how to install additional processors, memory and expansion cards.
Setup and Operation
Front View 1/1
Rear Panel 1/3
Machine Interior 1/4
Setting Up Your System for the First Time 1/6
Using the Front Panel 1/7
Security 1/9
Automatic Failure Recovery 1/10
Using the EISA Configuration Utility, (ECU) 1/10
The Flash Memory 1/12
Upgrading and Expansion
Gaining Access to the Machine Interior 2/1
Upgrading the CPU 2/2
Additional CPU card 2/6
Upgrading Memory 2/7
Installing and Removing Expansion Cards 2/10
Section Two Chapter / page
This section contains detailed information for an authorised engineer, with
all the procedures to follow if a fault develops within the system.
Preliminary Service Information
Preliminary Service Tasks 3/2
Antistatic Precautions 3/2
Equipment Required 3/2
Hard disk drives and modules
Hard Disk Drive 4/1
Hard Disk Drive Module 4/3
Hard Disk Drive Module Backplane 4/5
Front panels and drives
Front Bezel 5/1
Front Panel 5/2
Removable Media Drives 5/6
SMC
System Management Controller (SMC) 6/1
SMC Cooling Fan Assembly 6/3

Contents
CONTENTS
Fans
Hard Disk Drive Cooling Fan Assembly 7/1
Motherboard Cooling Fan Assembly 7/4
Fan sub-assembly 7/5
Motherboard
System Motherboard 8/1
Motherboard Power Distribution Panel 8/7
Power Booards and Speaker
Hard Disk Drive Power Distribution Panel 9/1
Removable Media Drive Bay Power Distribution Panel 9/3
Loudspeaker 9/4
UPS and Battery Pack
Uninterruptible Power Supply Unit 10/2
UPS Battery Pack 10/8
Section Three Chapter / page
This section contains more in-depth technical details, as well as functional
information about memory, electronics and circuitry.
Technical Information / Overview
Functional Architecture 11/2
Memory 11/4
Central Processing Unit 11/6
Motherboard
Motherboard layout 12/1
Expansion slots 12/2
I/O map, slot assignments, DMA, interrupts 12/3
Switches and Jumpers 12/6
Bus connections and ports 12/7
System Management Cards
System Management Interface card 13/1
System Management Controller 13/7
Power System
Power Distribution Boards 14/1
Uninterruptible Power Supply 14/2
Diagnostic Codes Reference
Front panel LCD 15/1
Codes from the SMIC BIOS 15/8
Codes appearing in the SMA 15/8
Appendix
Important information about antistatic precautions.

APRICOT FT4200
Section One
Startup and operating,
Upgrading and expansion

Setup and operation
1/1
1 SETUP AND OPERATION
This section identifies the different parts of your system, explains what you
should do when using the system for the first time and shows you how to
carry out tasks which are part of normal operation.
Front View
The following illustration shows a front view of the server with the front
drive bay door open:
SLOT-4
DC
Write Protect
Step
Cassette
Drive
Open/Close
COMPACT
10
9
11
12
13
14
16
8
7
6
5
4
3
2
1
15
Figure 1-1 Front View
1. Diagnostic Codes LCD 9. 3.5” Floppy Drive
2. POWER ONButton 10. 5.25” CD ROM Drive
3. CONTROL Button 11. Drive Bay Door Keylock
4. STANDBY Button 12. Drive Bay Door
5. RESET Button 13. Air Intake Vents
6. Infrared Sensor 14. Removable Side Panel
7. UPS LED 15. Side Panel Keylock
8. Power LED 16. Side Panel Floating Fasteners

Setup and operation
1/2
The following paragraphs give a brief explanation each item on the front of
the machine:
♦ Diagnostic Codes LCD - Displays diagnostic codes that indicate
errors or normal stages in the boot process (see the chapter Diagnostic
Codes).
♦ POWER ONbutton - Pressing this button switches the machine from
Standby mode to On mode.
♦ STANDBY button - Holding this button down powers down the
server from On mode to Standby mode. This button also has special
functions in conjunction with other buttons (see Special Button
Functions later in this chapter).
♦ CONTROL button - Pressing this button silences alarms which sound
because of internal errors. It also has special functions in conjunction
with other buttons (see “Special Button Functions” later in this
chapter).
♦ RESET button - Performs a hard reboot of the system. This button
also has special functions in conjunction with other buttons (see
“Special Button Functions” later in this chapter).
♦ POWER LED - Indicates whether the server is On or is in Standby
mode.
♦ UPS LED - Indicates whether the system is receiving power from the
battery pack or from the mains electricity supply. It also indicates the
status of the battery pack.
♦ Lockable drive bay door - Provides security against unauthorised
access to the removable media drives. The key to this door serves as
the token used to control the built-in security subsystem (see
“Security” later in this chapter).
♦ Air Intake Vents - Openings in the front bezel through which the
system draws air in order to prevent overheating. These must not be
blocked or restricted in any way.
♦ Removable Side Panel - Provides protection for the internal
components and security against unauthorised access to the interior
of the server.
Greater detail of the controls and their use is given in the following pages of
this chapter, along with important information on connecting and setting up
your system.

Setup and operation
1/3
Rear Panel
The rear panel contains the various ports and connectors as shown in the
following illustration:
13
6
12
4
7
3
5
8
11
10
12
9
Figure 1-2 Rear Panel
1. Keyboard Connector (PS/2) 8. Expansion Slot Openings
2. Mouse Connector (PS/2) 9. Stud for Antistatic Strap
3. Serial Port COM2 10. Removable UPS Battery Pack
4. Serial Port COM1 11. UPS External Circuit Breaker
5. SMC Modem Port 12. Uninterruptible Power Supply
6. Video Connector 13. AC Power Socket
7. Parallel Port

Setup and operation
1/4
Machine Interior
The interior of the server consists of the following main areas:
♦ Hard Disk Subsystem
♦ Removable Media Drive Bay
♦ Motherboard
♦ Systems Management Controller Board
♦ Uninterruptible Power Supply
♦ Cooling Fans
To gain access to the interior of the machine, you must remove the side
panels. Chapter 2, Upgrading and expanding, contains side panel removal
instructions.
Hard Disk Subsystem
The hard disk subsystem is the area in which the hard disks are located. It
occupies the lower portion of the disk drive chamber. It can be configured to
accommodate up to 20 hard disk drives. For full details refer to the chapter
on hard drives in the service section of this handbook.
2
1
Figure 1-3 View of hard disk subsystem
1. Disk Subsystem 2. Cooling Fan Assembly
Removable Media Drive Bay
The removable media drive bay is the area which can contain drives such as
floppy, CD ROM and tape backup drives. The bay will accommodate up to
four half-height 5.25-inch drives. Your system will contain at least one 3.5-
inch 1.44-Mbyte floppy disk drive.
User access to the drive bay is through the lockable drive bay door on the
front bezel. The lock on the door is fitted with a sensor which, when security
is enabled, sounds an alarm if the door is opened without using the key to
unlock it, i.e. if it is forced.

Setup and operation
1/5
Motherboard
The motherboard contains the various disk controllers and other electronics
necessary to control the server’s functions. It contains the memory and first
two processors as well as PCI and EISA expansion slots.
Figure 1-4 Motherboard in the Electronics chamber
Uninterruptible Power Supply
This power supply is designed to keep your system powered up for a
limited period of time after, or during a power failure. It is equipped
with an on-line removable battery pack and will give you enough time to
shutdown the network and the server without losing valuable data. The
power supply, including the battery pack, occupies the entire lower level of
the server chassis.
The UPS will maintain power to the system for a minimum of 4 minutes in
a fully-laden system, i.e. equipped with 20 hard disk drives. This time will be
longer in a system equipped with fewer drives.
NoteNote
In the event that the mains power fails, the LCD will display a countdown of the
number of seconds remaining until the battery pack is fully discharged. The
Event Manager User’s Guide contains more details about this feature.
Cooling Fans
Your computer is equipped with six thermally controlled and alarmed
cooling fans, three on each side of the machine. These will prevent
overheating by maintaining an appropriate temperature inside the system.
In addition there are two cooling fans within the UPS unit.

Setup and operation
1/6
CautionCaution
You must maintain at least 15 cm space around the computer for adequate
ventilation. Otherwise damage could result from overheating.
Setting Up Your System for the First Time
After you have unpacked the server and rolled it into position, use the
jacking mechanism on the front castors to immobilise it. Then go through
the following steps to start up the system:
♦ Connect the monitor signal, keyboard and AC power cables to the
sockets on the server’s back panel.
◊ See the guide supplied with the monitor for details on its
connections to an AC supply and general information about its
signal cable.
♦ Establish the appropriate link which will enable you to run the System
Management Application (SMA), such as:
◊ Direct link to another PC. In this case, use the supplied serial-to-PC
cable to connect the SMC modem port to the serial port on the
separate diagnostic computer.
◊ Modem link to a computer at another location. Use the supplied
serial-to-modem cable to connect the SMC port to the modem.
◊ In some cases you can also run the SMA over the network itself,
from one of the connected computers, depending on the operating
system.
♦ Switch the AC supply on, followed by the UPS isolation switch on the
rear of the system. (For safety during transportation, this is locked in
the off position with a strap).
◊ The Uninterruptible Power Supply LED should display steady
green (battery fully charged) or flash green (battery pack is
charging). If the LED is flashing, it will take a maximum of 36
hours to charge the batteries from full discharge.
◊ The system is now in Standby mode.
♦ Locate and press the POWER ONbutton to switch the machine on.
When the system is up and running normally following boot-up and all
software loaded, the display code on the front LCD panel will be 0000. If
any codes appear other than normal procedure codes, then refer to the
chapter dealing with Diagnostic codes towards the end of this handbook.
Some codes are transitory, being way markers for the boot-up process.
Before proceeding further, read carefully the following pages in this chapter.
They contain important information about the controls and their functions.

Setup and operation
1/7
Using the Front Panel
This section describes the functions of the front panel during normal
operation.
CautionCaution
Do not place any large or heavy objects on the top, especially near to the front
facia. Likewise avoid leaning on the machine. It may inadvertently cause the
operation of one or more front panel buttons.
8
7
6
5
4
3
2
1
Figure 1-5 Front Panel Controls
1. Diagnostic LCD 5. Reset Button
2. Power On Button 6. Infrared Sensor
3. Control Button 7. UPS LED
4. Standby Button 8. Power LED
Power On
Press this button to switch the system on from Standby mode. The Power
LED will light up and the system will initiate its boot sequence. Diagnostic
codes, expressed as hexadecimal numbers, will appear as a matter of course
on the LCD screen on the Front Panel (see the chapter Diagnostic Codes
Reference for details). The screen will display the SCSI ID number for each
of the SCSI devices installed in your system. What happens after this depends
on how your Apricot has been configured, i.e. which operating system or other
software may be installed. Check with your supplier if you need more details.
Control
Press this button to silence alarms and clear LCD display codes that are produced
because of internal errors and power failures (but not security alarms).
Pressing CONTROL at the end of firmware initialisation forces the System
Management Controller (SMC) to execute the code of the EPROM instead
of the Flash ROM, even if the version in the Flash is newer than that of the
EPROM. This allows you to boot from EPROM if there is something wrong
with the Flash code.

Setup and operation
1/8
NoteNote
It is good practice to warn anyone who may be accessing the system remotely, i.e.
using the SMA from a remote computer via the modem port, before you press the
STANDBY button.
Standby
After you have instructed all network users to close their applications down
and log off the network, hold this button down for a specific period of time
before the system initiates a shutdown sequence to Standby mode. The
system will display the code 1200 on the LCD and sound a tone. Continue
to hold down the STANDBY button until the tone stops, at which time the
shutdown sequence begins. In Standby mode, the mains electricity supply
keeps the battery pack fully charged, but there is no DC power supplied to
the system. Use the System Management Application (SMA) to specify, in
seconds, how long you must hold down the button before the shutdown
sequence begins (see the SMA User’s Guide). The default is 3 seconds.
♦ Press STANDBY and CONTROL simultaneously to cancel the current
Standby sequence. (Only if last client is loaded)
NoteNote
When accepted, the Standby timer requests that the operating system be shutdown,
thus the final screen message will be “Shutdown or Restart OS.” If Restart is selected
the motherboard is reset and the POST sequence initiated. During this period the
SMC timer is still running and can move the system into Standby at any point. To
prevent possible data loss or corruption it is recommended to always select
Shutdown in this situation.
Reset
Press this button to initiate a hardware reset, but only if it is absolutely
necessary. The LCD will display 1400. You must hold the button down
until the accompanying tone stops sounding. Use the System Management
Application (SMA) to specify how long, in seconds, the reset tone will sound
(see the SMA User’s Guide). The default is 3 seconds.
♦ Press RESET and CONTROL simultaneously to cancel the current reset
sequence. (Only if last client is loaded)
Special Button Functions
CautionCaution
Do not use these functions unless there is serious problem with the system and it is
absolutely necessary.
Pressing STANDBY, CONTROL and RESET simultaneously while the front
drive bay door is unlocked switches the system into a mode in which these
three buttons have special functions. The LCD displays 8888 to indicate this
mode. The following paragraphs describe the special function of each
button.
♦ STANDBY or RESET - Pressing either of these buttons initiates a
memory dump to the central processing unit by activating and then
deactivating the Non-Maskable Interrupt (NMI) signal via the
diagnostic processor. The effect of this action will depend on the
operating system. You can then use the appropriate function of the
network operating system to examine the contents of the dump.

Setup and operation
1/9
♦ CONTROL - Pressing this button initialises the modem, which is
connected to the SMC modem port on the back panel of the server. If
the modem initialisation is successful, the LCD displays the code 0000.
If the initialisation is unsuccessful, the LCD displays 0F4D or 0F4E.
♦ STANDBY + RESET - Pressing these buttons simultaneously clears the
LCD and then releasing them executes an independent SMC reset.
This would only be necessary if a major problem or error had occurred
in the system, which is unlikely.
If you do not press any buttons for ten seconds, the system returns to normal
mode.
UPS and Power LEDs
The UPS and Power LEDs indicate the state of the system as follows:
UPS LED
♦ When this LED shows steady green, it means that the system is
powered by mains electricity and the batteries are fully charged.
♦ Flashing green means that system is powered by mains electricity and
the batteries are in the process of charging. This will usually be the case
after the system has been without mains electricity, i.e. disconnecting
the plug or a power failure.
♦ Steady amber indicates that the system is drawing its power off the
batteries, i.e. there is no mains electricity. As soon as mains electricity
fails, an alarm sounds.
♦ Flashing amber indicates that the battery pack is about to fail.
♦ Off shows that the batteries are disconnected because the circuit breaker
switch on the back of the machine is in the Off position or the system is
disconnected from the mains.
Power LED
♦ Steady green means that the system is on and powered.
Security
Your Apricot is equipped with a security system to help prevent unauthorised
persons tampering with the front panel buttons and gaining access to the
interior of the system.
Security is enabled within the System Management Application (see the
SMA User’s Guide, the Event Manager User’s Guide or the on-line help within
the SMA software). Once security is enabled, the key to the removable drive
bay door at the front of the machine serves as the security token:
♦ If the door is closed and has been locked with the key, the screen is
blanked, the keyboard is disabled, the security alarm is activated and
will sound if there is a violation.
♦ Unlocking the door unblanks the screen, enables the keyboard and
deactivates the security alarm.

Setup and operation
1/10
NoteNote
When security is enabled and the door locked, you can use the KeyLOC infrared
card to unblank the screen and enable the keyboard temporarily. The card will
also silence a security alarm. Use the card again to blank the screen and disable
the keyboard.
The following actions are security violations and will set off the alarm when
the drive bay door is closed and locked and security is enabled:
♦ Forcible opening (i.e. without the key) of the removable drive bay door.
♦ Removal, with or without the key, of one or both of the side panels.
♦ Pressing the STANDBY, CONTROL or RESET buttons individually or in
any combination.
To silence the alarm, use the key to unlock the drive bay door. If the door is
already unlocked when the alarm sounds, first lock and then unlock the
door. Alternatively, use the KeyLOC card to silence the alarm.
Automatic Failure Recovery
As with any computer system, your server may develop a hardware or
software fault, which, for example, may only manifest itself intermittently,
that causes the system to hang. If this happens, the server is capable of
resetting itself automatically. This is particularly useful if the server is
unattended some or all of the time.
Whether the server is able to rebuild the complete network environment,
together with application programs, after an automatic reset depends on the
operating system. The SMA contains several variables which govern the
behaviour of automatic failure recovery:
♦ Machine Status
♦ Watchdog Timeout
♦ Watchdog Timer Reboot Count
♦ Watchdog Timer Timeout Action
You can make settings for these variables to enable, disable or modify their
effects. The on-line Help system within the SMA contains details of all of
these variables and how to make the appropriate settings.
Using the EISA Configuration Utility (ECU)
The ECU automates the configuration process for your computer’s hardware
and the boards (ISA, EISA, Plug-n-Play and PCI) or options that you add to
the system. You must run the ECU each time you change your computer’s
configuration. The ECU does the following:
♦ Maintains system parameters and stores these in non-volatile RAM.
♦ Presents the option settings that specify those parameters.
♦ Assigns all necessary system resources, to eliminate conflicts.
♦ Presents settings for other functions, such as date and time.
NoteNote
You should use only the ECU to configure your system, as other setup utilities
may not be accessible via a remote computer or over a network.