L i f e B o o k C S e r i e s B I O S
IRQ Reservation Submenu of the PCI Configuration Submenu
The IRQ Reservation 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.
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] |
| Reserve the specified |
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| IRQ 4: | [Available] |
| IRQ for use by legacy |
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| IRQ 5: | [Available] |
| 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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| IRQ 15: | [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 of the Advanced Menu
Menu Field | Options | Default | Description | |
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IRQ 3: | n | Available | [Available] | Reserves IRQ 3. If Reserved is selected, the BIOS reserves IRQ 3 for |
| n | Reserved |
| use by legacy ISA devices and does not use it for embedded PCI or |
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| ISA devices. IRQ 3 is removed from the IRQ bitmap in the PCI IRQ |
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| routing table. |
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IRQ 4: | n | Available | [Available] | Reserves IRQ 4. |
| n | Reserved |
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IRQ 5: | n | Available | [Available] | Reserves IRQ 5. |
| n | Reserved |
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IRQ 7: | n | Available | [Available] | Reserves IRQ 7. |
| n | Reserved |
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