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LifeBook E Series BIOS
IRQ Reservation Submenu of the PCI Configuration Submenu
The IRQ Reservation submenu of the PCI Configuration
submenu allows the user to mark 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 10. IRQ Reservation Submenu
CAUTION
Only IRQ’s 9, 10, & 11 can be reserved without conflict.
Table 10: Fields, Options and Defaults for the IRQ Reservation Submenu of the PCI Configuration Submenu
Menu Field Options Default Description
IRQ 3:
■
Available
■
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
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.
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
PhoenixBIOS Setup Utility
Reserve the specified
IRQ for use by legacy
ISA devices.
IRQ Reservation
IRQ 3: [Available]
IRQ 4: [Available]
IRQ 5: [Available]
IRQ 7: [Available]
IRQ 9: [Available]
IRQ 10: [Available]
IRQ 11: [Available]