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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:

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]

Select Item

-/Space

Select Menu

Enter

Figure 9. IRQ Reservation Submenu

Default

[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.

Setup Defaults

F10

Save and Exit