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GFK-2023C Chapter 4 Installing Plug-in Modules 4-3
4
Configuring Expansion Cards (Legacy ISA Only)
Caution
For most applications, an interrupt request (IRQ) or address cannot
be shared by more than one resource. If more than one resource is
set to the same IRQ or address, the application may not respond
properly and could cause your machine to lock up. Following these
instructions when installing Legacy ISA cards will prevent problems
with resource conflicts.
The controllers (Ethernet, IDE) in the slot CPU of the IPC are connected via an internal
PCI bus. This ensures that addresses and IRQs are automatically determined by the
BIOS. When making changes to the configuration or adding ISA cards:
1. Install the unit without ISA cards, switch on and read off assigned IRQs and
addresses.
2. Install additional ISA cards so that IRQs assigned to PCI are not reused (interrupt
sharing).
3. Reserve IRQs for ISA in the BIOS
Reserving IRQs for ISA Cards in the BIOS
Legacy ISA cards are the oldest standard and require memory, I/O, and IRQ settings to
be manually set on the card using jumpers, DIP switches, or a configuration program. The
card and system need to have the same hardware settings.
The GE Fanuc web site http://gefanuc.com/
provides current information on BIOS settings
for IRQs.
1
. Connect a keyboard, turn on the system power, and press F2 when prompted to enter
the BIOS Setup program.
2
. Select Advanced, then PCI Configuration, and PCS ISA Resource Exclusion.
3
. If the card requires one or more interrupts, go to an IRQ that currently reads
"Available" and change it to "Reserved" by pressing +/-. Do not use an IRQ that
already reads "Reserved."
4
. If the card requires memory space, press the arrow key to return to the PCI
Configuration screen. Select PCI ISA UMB Region Exclusion. Go to a memory block
that currently reads "Available" and change it to "Reserved" by pressing +/-. Do not
use a memory block that already reads "Reserved."
5
. Press ESC to exit the configuration screen. In the Exit menu, select Exit Saving
Changes and to save and exit Setup. When the screen goes blank, turn off the power.
6
. If the card has jumpers or DIP switches, set them so that they match the IRQ and
memory addresses set in the BIOS Setup.
7
. Set the I/O port settings of the card (if any) so that they fall within the ranges labeled
"Available" in the following table.