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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
Main
IRQ 3:
IRQ 4:
IRQ 5:
IRQ 7:
IRQ 9:
IRQ 10:
IRQ 11:
IRQ 15:
F1
Help
ESC
Exit
Table 9: Fields, Options and Defaults for the IRQ Reservation Submenu of the
PCI Configurations Submenu of the Advanced Menu
Menu Field
Options
IRQ 3:
• Available
• Reserved
IRQ 4:
• Available
• Reserved
IRQ 5:
• Available
• Reserved
IRQ 7:
• Available
• Reserved
PhoenixBIOS Setup Utility
Advanced
Security
IRQ Reservation
[Available]
[Available]
[Available]
[Available]
[Available]
[Available]
[Available]
[Available]
Select Item
-/Space
Select Menu
Enter
Figure 9. IRQ Reservation Submenu
Default
[Available]
[Available]
[Available]
[Available]
A d v a n c e d M e n u
reserved, the BIOS does not use it for embedded PCI or
ISA devices.
Power Savings
Exit
Item Specific Help
Reserve the specified
IRQ for use by legacy
ISA devices.
Change Values
Select
Sub-Menu
Description
Reserves IRQ 3. If Reserved is selected, the BIOS reserves IRQ 3 for
use by legacy ISA devices and does not use it for embedded PCI or
ISA devices. IRQ 3 is removed from the IRQ bitmap in the PCI IRQ
routing table.
Reserves IRQ 4.
Reserves IRQ 5.
Reserves IRQ 7.
F9
Setup Defaults
F10
Save and Exit
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