SOYO Pentium SiS 551x User's Manual & Technical Reference page 34

BIOS Setup
PCI IDE IRQ Map To
Primary IDE INT#
Secondary IDE INT#
Internal PCI/IDE
IDE Primary Master PIO
IDE Primary Slave PIO
IDE Secondary Master PIO
IDE Secondary Slave PIO
IDE HDD Block Mode
Onboard FDC Control
Select PCI-AUTO, ISA, or assign a PCI SLOT number
(depending on which slot the PCI IDE is inserted).
The default setting is PCI-AUTO. If PCI-AUTO does
not work, then assign an individual PCI SLOT
number.
Choose INTA#, INTB#,
default setting is INTA#.
Choose INTA#, INTB#,
default setting is INTB#.
Choose Both (default),
Disabled.
Turns on the Primary and Secondary
Both:
IDE function.
Primary Turns on the Primary IDE function.
Secondary Turns on the
Disabled Turns off the Primary and
IDE function.
Choose Auto (default) or mode 0-4. Mode O is the
slowest speed, and HDD mode 4 is the fastest speed.
For better performance and stability, we suggest you
use the Auto setting to set the HDD control timing,
Choose Enabled (default) or Disabled. Enabled
invokes multi-sector transfer instead of one sector
per transfer. Not all HDDs support this function,
Enabled: Use the on-board floppy controller
(default).
Disabled: Turn off the on-board floppy controller.
INTC#, or INTD#. The
INTC#, or INTD#. The
Primary, Secondary, or
Secondary
IDE function.
Secondary
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