IBM Aptiva, Handbook

Page: 72 / 202

58 Chapter 5: Preparing to upgrade
Recording your changes
The instructions in this book apply when you have not
yet made hardware changes in your computer. However,
when you have added or replaced hardware, you must
rely on your own notes about the changes you have
already made. The information you need to record as
you work includes, but is not limited to:
•
Changes to jumper positions
•
Connection of drive and adapter card cables to the
system board
•
Changes to Setup Utility settings
•
Changes to settings in other online configuration
utilities, such as the Windows 95 Device Manager or
a configuration utility that might come with your
new hardware
Opening the system unit
Each time you open your system unit, you must follow
specific safety procedures to ensure you do not damage
your computer.
Opening a desktop system unit
To open a desktop system unit, you need no tools.
However, when you work with the hardware
components in the system unit, you might need a set of
small screwdrivers.
For your safety and the safety of your equipment, follow
these steps when you remove the system unit cover:
1.
If your computer is on, turn off the system unit, the
monitor, and any external components, such as a
printer.
2.
If your monitor is placed on top of your system
unit, move the monitor away from the system unit.
3.
Unplug all cables and cords from the system unit
except the system unit power cord. Be sure to
disconnect any telephone line connections too.