DFI G586IPV User Manual page 56

Your system supports five modes, numered from 0 (default) to 4, which
primarily differ in timing. When Auto is selected, the BIOS will select the
best available mode.
The BIOS will set the system board to fit the hard disk drive
Auto
timing automatically.
You can select the setting to fit your hard disk timing.
Mode 0-4
On-Chip Primary/Secondary PCI IDE
This setup item allows you to either enable or disable the primary/
secondary controller. You might choose to disable the controller if you
were to add a higher performance or specialized controller. The default
value is Enabled.
Enabled Primary/Secondary HDD controller used.
Primary/Secondary HDD controller not used.
Disabled
PCI Slot IDE 2nd Channel
This item allows you to designate an IDE controller board inserted into
one of the physical PCI slots as your secondary IDE controller. The
default value is Disabled.
Enabled External IDE Controller designated as the secondary control-
ler.
Disabled No IDE controller occupying a PCI slot.
Onboard FDD Controller
This item allows you to designate a floppy controller board inserted into
one of theslots as your floppy controller. The default value is Enabled.
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