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IRQ Reservation Submenu of the PCI Configurations Submenu

The IRQ Reservation submenu of the PCI Configura-

tions submenu allows the user to mark various IRQs as

reserved for use by legacy ISA devices. When an IRQ is

reserved, the BIOS does not use it for embedded PCI or

ISA devices.

Figure 8. IRQ Reservation Submenu

Table 8: Fields, Options and Defaults for the IRQ Reservation Submenu of the PCI Configurations Submenu

Menu Field Options Default Description
IRQ 3: Available
Reserved
[Available] Reserves IRQ 3. If Reserved is selected, BIOS reserves IRQ 3 for use by
legacy ISA devices and does not use it for embedded PCI/ISA devices.
IRQ 3 is removed from the IRQ bitmap in the PCI IRQ routing table.
IRQ 4: Available
Reserved
[Available] Reserves IRQ 4.
IRQ 5: Available
Reserved
[Available] Reserves IRQ 5.
IRQ 7: Available
Reserved
[Available] Reserves IRQ 7.
IRQ 9: Available
Reserved
[Available] Reserves IRQ 9.
IRQ 10: Available
Reserved
[Available] Reserves IRQ 10.
IRQ 11: Available
Reserved
[Available] Reserves IRQ 11.
IRQ 15: Available
Reserved
[Available] Reserves IRQ 15.
F1 Help
ESC Exit Select Item
Select Menu -/Space
Enter F9 Setup Defaults
F10 Save and Exit
Change Values
Select Sub-Menu
Main Advanced Security Power Savings Exit
Item Specific Help
Reserve the specified
IRQ for use by legacy
ISA devices.
IRQ Reservation
PhoenixBIOS Setup Utility
IRQ 3: [Available]
IRQ 4: [Available]
IRQ 5: [Available]
IRQ 7: [Available]
IRQ 9: [Available]
IRQ 10: [Available]
IRQ 11: [Available]
IRQ 15: [Available]
Advanced Menu
Momus BIOS.fm Page 13 Tuesday, February 5, 2002 10:38 AM