Instruction manual

3-21
BIOS Setup
IRQ Resource Setup
Press <Enter> to enter the sub-menu and the following screen appears.
IRQ 3/4/5/7/9/10/11/14/15
These items specify the bus where the specified IRQ line is used.
The settings determine if BIOS should remove an IRQ from the pool of available
IRQs passed to devices that are configurable by the system BIOS. The available
IRQ pool is determined by reading the ESCD NVRAM. If more IRQs must be
removed from the IRQ pool, the end user can use these settings to reserve the
IRQ by assigning an [Reserved] setting to it. Onboard I/O is configured by AMIBIOS.
All IRQs used by onboard I/O are configured as [Available]. If all IRQs are set to
[Reserved], and IRQ 14/15 are allocated to the onboard PCI IDE, IRQ 9 will still be
available for PCI and PnP devices. Available settings: [Reserved] and [Available].
DMA Resource Setup
Press <Enter> to enter the sub-menu and the following screen appears:
DMA Channel 0/1/3/5/6/7
These items specify the bus that the system DMA (Direct Memory Access)
channel is using.
The settings determine if AMIBIOS should remove a DMA from the available
DMAs passed to devices that are configurable by the system BIOS. The avail-
able DMA pool is determined by reading the ESCD NVRAM. If more DMAs must be
removed from the pool, the end user can reserve the DMA.