DFI-ITOX G4C600-R User Manual page 76

3
BIOS Setup
IDE DMA Transfer Access
This field, when Enabled, will enhance the IDE DMA transfer of a
parallel ATA IDE hard disk drive. However, if the system board is
connected with Serial ATA drives too, you must set this field to
Disabled otherwise problems will occur.
On-Chip Primary PCI IDE and On-Chip Secondary PCI IDE
These fields allow you to enable or disable the primary and
secondary IDE controller. Select Disabled if you want to add a
different hard drive controller.
IDE Primary Master/Slave PIO and IDE Secondary Master/Slave
PIO
PIO means Programmed Input/Output. Rather than have the BIOS
issue a series of commands to effect a transfer to or from the disk
drive, PIO allows the BIOS to tell the controller what it wants and
then let the controller and the CPU perform the complete task by
themselves. Your system supports five modes, 0 (default) to 4, which
primarily differ in timing. When Auto is selected, the BIOS will select
the best available mode after checking your drive.
Auto
Mode 0-4
IDE Primary Master/Slave UDMA and IDE Secondary Master/
Slave UDMA
These fields allow you to set the Ultra DMA in use. When Auto is
selected, the BIOS will select the best available option after checking
your hard drive or CD-ROM.
Auto
Disabled
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The BIOS will automatically set the system according
to your hard disk drive's timing.
You can select a mode that matches your hard disk
drive's timing. Caution: Do not use the wrong setting
or you will have drive errors.
The BIOS will automatically detect the settings for
you.
The BIOS will not detect these categories.