Mitsubishi Electric Apricot FTs 486 Bedienungsanleitung

apricot

FTs 486

ADD-ON INSTALLATION GUIDE

MITSUBISHI ELECTRIC

80387DX is a trademark of Intel Corporation.

Microchannel is a trademark of International Business Machines 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. The

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

purchaserÕs personal use.

Published by

Apricot Computers Limited

3500 Parkside

Birmingham Business Park

BIRMINGHAM B37 7YS

MITSUBISHI ELECTRIC

Printed in the United Kingdom

Part no. 15033931

Contents

Introduction 2

Anti-static precautions 3

Power down procedure 4

Power up procedure 5

Removing the left side panel 6

Adapter cards 7

Installing memory modules 9

CPU module upgrade 14

Introduction

This guide contains instructions on installing expansion

cards and extra memory in your computer. This document

should be your only source of information when installing

either of these.

You should read this document before purchasing extra

memory. If, having read the relevant instructions, you are

not confident about installing the upgrade, you may wish to

have your supplier or service organisation install it for you.

Before you start installing the upgrade you should be

thoroughly familiar with all the relevant instructions in this

guide.

Warning

Never carry out any work on the equipment with power

applied. Always switch off at the mains, isolate the

batteries and remove the power lead from the equipment

before starting work.

At the rear of this guide is some information about CPU

module upgrades. These are not user installable items,

only competent service personnel may install them.

Anti-static precautions

All electronic components and equipments are sensitive to

static electricity. Even small electrostatic discharges can

render components useless or severely shorten their

working life, therefore you should always take preventative

measures.

No work should be carried on any item unless it is in a

Special Handling Area (SHA) as defined in BS CECC

00015:Part 1. In general this involves:

* a common earth point

* an earthed bench or bench mat

* an earthed wrist strap

Note

An anti-static stud is provided on the rear panel of the

Apricot FTs.

Power down procedure

If security is enabled a user of appropriate authority must

be logged on before the system can be powered down.

1. Push the STANDBY button

2. Confirm by pushing the button under the “Y” on the

LCD display.

3. Isolate the internal UPS battery by setting the

BATTERY ISOLATION switch to the “0” position.

4. Isolate the FTs from any auxiliary external battery

supply.

5. Unplug the mains power supply.

Power up procedure

1. Ensure that the battery isolation switch is in the “0”

position.

2. Connect the FTs to any auxiliary external battery

supply.

3. Plug in the mains power supply.

4. Set the BATTERY ISOLATION SWITCH to the “1”

position.

5. Push the POWER button.

6. Perform any required power-on security procedure.

Removing the left side panel

The left side panel (as viewed from the front) is located by

two pegs at the front, and secured by two thumbscrews

and a keylock at the rear.

The left side panel allows access to the electronics bay

where the motherboard and power distribution board are

located.

To remove the side panel:

CASING SCREWS

1. Power the system down.

2. Unlock the security lock on the rear panel.

3. Unscrew the two thumbscrews.

4. Swing the rear of the panel away from the system unit

until the rear flanges are clear of the system unit.

5. Support the front of the panel and pull it rearwards

to free it from the pegs.

Replacement is simply the reverse of removal.

Adapter cards

Eight 32-bit Micro Channel slots are available on the

system board for the installation of adapter cards. One slot

is always occupied by a hard disk controller. Each slot has

a blanking plate in the rear panel and a slot in the bridge

assembly at the front of the system unit.

The slot nearest the top of the system unit (labelled 6) is a

video slot suitable for use with video adapters that use only

the Micro Channel Video Extension. Six of the other seven

slots are standard 32-bit slots and include the Micro

Channel Matched Memory Extension.

The exception is slot 1. It includes the Matched Memory

extension, but is also fitted with an additional extension.

This is reserved for future use, and slot 1 must not be used

for an XGA card. If you wish to install an XGA card it

should be installed in slot 4, 5, 7 or 8.

In order to simplify cabling between drive controllers and

the drive bay, it is recommended that slot 6 is left

unoccupied (except for a video card), and slot 3 is left

unoccupied (except for a secondary drive controller). Any

other adapter cards should be fitted in slots 1, 4, 5, 7 and 8

working down the system unit. Only after all these slots are

full should cards other than video adapters or drive

controllers be fitted in slots 6 or 3.

To install an adapter card:

1. Power the system down.

2. Remove the left side panel of the system unit.

3. Loosen the thumbscrew at the bottom of the

blanking plate for the slot that the adapter is to

occupy, and remove the blanking plate.

Note

If the thumbscrew is tight it may be necessary to

use a screwdriver or coin to release the

thumbscrew.

4. Place the adapter card above the required

connector making sure that the front edge of the

card locates in the appropriate notch in the bridge

assembly. The following two illustrations show the

possible internal layouts.

5. Push the card firmly into the connector. Do not use

excessive force.

6. Secure the card by tightening the thumbscrew at the

bottom of the rear panel of the card.

7. Replace the left side panel.

8. Power the system up with the Reference diskette

and reconfigure for the new adapter.

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