LS/VS550 OWNER’S HANDBOOK 3/1
3
SYSTEM EXPANSION
Your computer can accept various expansion cards or boards. Most
are simple to install. You can extend the capabilities of the computer
by installing, for example, a modem, TV card, or network interface.
Most modern cards are very simple to install, particularly Peripheral
Component Interface (PCI) types as they are ‘plug and play’ and
require little in the way of configuration. Industry Standard
Architecture (ISA) cards however often require a little preparation
and setting up before they can be used.
2
10101
1
1
3
2
1.
Half PCI
2.
Full PCI
3.
Half ISA
The riser board can accommodate a number of expansion cards as
shown in the above illustration. The normal fitted blanking plates
are not shown for clarity.
Configuring the card
The installation procedure for many expansion cards involves
setting up or configuring the card so it works correctly in the
system. You assign values to various settings on the card, which
enables the card to communicate with the computer. The settings
MUST be registered in the ‘ISA legacy resources’ section of the BIOS.
Many cards require that you specify at least two of the following:
♦
Interrupt request level (IRQ)
