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How's the IRQ sharing issue for BD7 / BD7R motherboards?

 

  • 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


What's Related:

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