Installing the network card – A5000
(also A300-series, A440 & A400/1-series)
The minimum system requirements are 2MB of RAM and the RISC OS 3 (Version 3.10 or later) operating system. Note that 300-
series and 440 (not 440/1) Archimedes must be upgraded with MEMC1A to work with the network interface card.
To fit the network interface card you will have to remove the cover of the computer and one of the blanking plates at the rear of
the machine. Acorn Computers Limited cannot accept any liability
for
damage done to the product during the installation of
internal upgrades, whether or not carried out in accordance with
these
instructions. If you don't feel confident about carrying out
any of these instructions, ask your supplier to fit the upgrade
for you
(a charge may be levied by the supplier for installing any
upgrades; such a charge shall be entirely at the discretion of the
supplier
concerned).
On 300-series (305, 310), 440s and 400/1-series
Archimedes computers, the top cover is held in place
by three screws at the top rear, and one screw on
either side of the cover, towards the front. These must
be removed before the cover can be slid off. (On some
early Archimedes you will need to adjust the position
of the backplate on the card to ensure that when the
card is installed and bolted in place, the connector is
seated correctly and the backplane vertical.)
Turn the computer back onto its base again. Slide the
top cover back towards the rear of the computer, then
remove it completely.
Some models of A5000 have a metal EMC case shield
which fits over the inner case. To remove this, unscrew
the five fixing screws on the righthand side of the
computer, as seen from the rear. The shield has
interleaved tabs which fit around the edges of the
case. Slide the shield off the computer carefully; there
is a hole on the top to help you slide the shield off by
inserting a screwdriver.
Before you start
You'll need a small Pozidriv
screwdriver,
and a firm, flat,
surface to work on. The surface should be free from static
electricity. A towel spread on a worktop would be ideal.
Removing the top cover
Before removing the top cover of the computer
1
switch off the computer
2
remove the power lead from the wall
socket.
Do not reconnect the power lead to the wall
socket until you have replaced the cover of the
computer.
Do not make any adjustments inside the
computer while the power lead is connected to
the wall socket.
Preparation
Make sure that the hard disc drive heads are parked before
moving the computer. To park them, just choose
Shutdown
from the Task manager menu.
Removal procedure
Switch off and disconnect the computer from the
mains supply, then switch off and disconnect all
peripherals (including the keyboard).
Place the computer on the work surface and turn it
over so that it rests on its top cover.
Remove all six screws holding the metal cover in
place; store them somewhere safe:
Published by Acorn Technical Publications Department. Copyright © 1993, 1994 Acorn Computers Limited
Part
number
0484,461. Issue 2, January 1994
