IRQ Reservation Submenu of the PCI Configurations Submenu

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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 9.  IRQ Reservation Submenu
C A U T I O N
Only IRQ's 9, 10, & 11 can be reserved without conflict.
Table 9: Fields, Options and Defaults for the IRQ Reservation Submenu of the
PCI Configurations Submenu of the Advanced Menu
Menu Field
Options
Default
Description
IRQ 3:
s
Available
s
Reserved
[Available]
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.
IRQ 4:
s
Available
s
Reserved
[Available]
Reserves IRQ 4.
IRQ 5:
s
Available
s
Reserved
[Available]
Reserves IRQ 5.
IRQ 7:
s
Available
s
Reserved
[Available]
Reserves IRQ 7.
F1
Help
ESC
Exit
Select Item
Select Menu
-/Space
Enter
F9
Setup Defaults
F10
Save and Exit
Change Values
Select   Sub-Menu
v
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]
F1
Help
ESC
Exit
Select Item
Select Menu
-/Space
Enter
F9
Setup Defaults
F10
Save and Exit
Change Values
Select   Sub-Menu
v
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]