- AGP and PCI-1 share an IRQ
- PCI-2 and PCI-3 share an IRQ
- PCI-4 and USB share an IRQ
- PCI-5 has 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 and PCI-3
- PIRQ_2 is for PCI-5
- PIRQ_3 is for PCI-4 and USB controllers.
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