Intel BX User Manual page 48

III. CMOS SETUP UTILITY
 DMA 0
 DMA 1
 DMA 3
 DMA 5
 DMA 6
 DMA 7
DMA 0,1,3,5-7: Set the selected DMA channel to Legacy ISA if your ISA
card is not PnP compatible card and requires a special DMA
- Legacy ISA
channel to make it function.
- PCI/ISA PnP
 PCI IDE IRQ Map To
PCI IDE IRQ Map
To:
- ISA
- PCI-Slot1
- PCI-Slot2
- PCI-Slot3
- PCI-Slot4
- PCI-Auto
 Primary IDE INT#
 Secondary IDE INT#
Primary/Secondary
IDE INT#:
- A
- B
- C
- D
Used MEM Base Addr

3-22
This is a complement for the case that an ISA or PCI
add-on IDE card is installed. Since most of PCI add-
on IDE cards are not PCI Compliant, a location and
INT# inputs are necessary for acknowledging to BIOS.
PCI-Auto
Set this item to
configure the installed PCI IDE card automatically .
Each PCI slot has four PCI interrupts (INT) aligned as
listed , A, B, C, D. You should specify the slot in the
"PCI IDE IRQ Map To", and set the PCI interrupt (INT)
here to the interrupt connection on the card.
Use this item to specify the interrupt of the primary/
secondary channel of the PCI IDE add-on card.
Default: Primary IDE INT# => A
Default: PCI/ISA PnP
to allow BIOS to
Default: PCI-Auto
Secondary IDE INT# => B