L i f e B o o k E S e r i e s B I O S
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.
C A U T I O N
Only IRQ’s 9, 10, & 11 can be reserved without conflict.
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| PhoenixBIOS Setup Utility |
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| Main | Advanced | Security | Power Savings | Exit | |
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| IRQ Reservation |
| Item Specific Help |
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| IRQ 3: | [Available] |
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| Reserve the specified |
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| IRQ 4: | [Available] |
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| IRQ for use by legacy |
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| IRQ 5: | [Available] |
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| ISA devices. |
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| IRQ 7: | [Available] |
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| IRQ 9: | [Available] |
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| IRQ 10: | [Available] |
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| IRQ 11: | [Available] |
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F1 Help | Select | Item | Change | Values | |
ESC Exit | Select | Menu | Enter | Select | ▲ |
Figure 10. IRQ Reservation Submenu
F9 Setup Defaults
F10 Save and Exit
Table 10: Fields, Options and Defaults for the IRQ Reservation Submenu of the PCI Configuration Submenu
Menu Field | Options | Default | Description | |
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IRQ 3: | ■ | Available | [Available] | Reserves IRQ 3. If Reserved is selected, the BIOS reserves IRQ 3 for use by legacy ISA |
| ■ | Reserved |
| devices and does not use it for embedded PCI or ISA devices. IRQ 3 is removed from |
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| IRQ bitmap in the PCI IRQ routing table. |
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IRQ 4: | ■ | Available | [Available] | Reserves IRQ 4. |
| ■ | Reserved |
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IRQ 5: | ■ | Available | [Available] | Reserves IRQ 5. |
| ■ | Reserved |
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IRQ 7: | ■ | Available | [Available] | Reserves IRQ 7. |
| ■ | Reserved |
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IRQ 9: | ■ | Available | [Available] | Reserves IRQ 9. |
| ■ | Reserved |
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IRQ 10: | ■ | Available | [Available] | Reserves IRQ 10. |
| ■ | Reserved |
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IRQ 11: | ■ | Available | [Available] | Reserves IRQ 11. |
| ■ | Reserved |
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