Abit AMD ATHLON KV8 PRO User Manual page 53

BIOS Setup
PIRQ_0 Use IRQ No. ~ PIRQ_7 Use IRQ No.:
This item specifies the IRQ number manually or automatically for the devices installed on PCI slots.
For the relations between the hardware layout of PIRQ (the signals from the VIA VT8237 chipset), INT#
(means PCI slot IRQ signals) and devices, please refer to the table below:
Signals
PIRQ_0 Assignment
PIRQ_1 Assignment
PIRQ_2 Assignment
PIRQ_3 Assignment
PIRQ_4 Assignment
PIRQ_5 Assignment
PIRQ_6 Assignment
PIRQ_7 Assignment
NOTE:
•
PCI slot 1 shares IRQ signals with AGP slot.
•
If you want to install two PCI cards into those PCI slots that share IRQ with one another at the same
time, you must make sure that your OS and PCI devices' driver supports the IRQ sharing function.
AGP LAN PCI-1
INT A INT A INT D INT C INT B
INT B INT B INT A INT D INT C
INT C INT B INT A INT D
INT D INT C INT B INT A
INT A
PCI-2 PCI-3 PCI-4
3-25
PCI-5 SATA
INT A
INT B INT A
INT C
INT D
User's Manual