- AGP and PCI-1 share an IRQ
- PCI-2,PCI-3,PCI-4,PCI-5 and PCI-6 dividedly used an IRQ.
Manually assigning the IRQs is possible in BIOS "PnP/PCI configuration"
submenu,
- PIRQ_0 is for AGP and PCI-1
- PIRQ_1 is for PCI-2
- PIRQ_2 is for HPT 372 Chip
- PIRQ_3 is for reserve
- PIRQ_4 is for PCI-3
- PIRQ_5 is for PCI-6
- PIRQ_6 is for PCI-5
- PIRQ_7 is for PCI-4
Notes:
Please be aware that BIOS 6H adds a new function- "APIC"
in "Advanced BIOS Features"and the default setting is
"enabled". When APIC mode is enabled, there will be only
three changeable IRQs for manually assigning PIRQ- IRQ 9, 10, and
11. For more information, refer to the following document please.
http://www.microsoft.com/HWDEV/PLATFORM/proc/IO-APIC.asp
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