IBT Technologies IB791 User Manual page 42

BIOS SETUP
VIA OnChip IDE Device
OnChip SATA
The integrated peripheral controller contains an SATA interface with
support for two SATA channels. Select Enabled to activate each channel
separately.
OnChip IDE Channel 0 / 1
The integrated peripheral controller contains an IDE interface with
support for two IDE channels. Select Enabled to activate each channel
separately.
IDE Prefetch Mode
These field enables/disables the prefetch buffers in the PCI IDE
controller. The prefetch buffers are used as a temporary storage place as
data is transferred from one location to another.
IDE Primary/Secondary Master/Slave PIO
These fields allow your system hard disk controller to work faster.
Rather than have the BIOS issue a series of commands that transfer to or
from the disk drive, PIO (Programmed Input/Output) allows the BIOS to
communicate with the controller and CPU directly. The system supports
five modes, numbered from 0 (default) to 4, which primarily differ in
timing. When Auto is selected, the BIOS will select the best available
mode.
IDE Primary/Secondary Master/Slave UDMA
These fields allow your system to improve disk I/O throughput to
33Mb/sec with the Ultra DMA/33 feature. The options are Auto and
Disabled.
IDE HDD Block Mode
This field allows your hard disk controller to use the fast block mode to
transfer data to and from your hard disk drive.
VIA OnChip PCI Device
VIA-3058 AC97 Audio
By default, the audio controller is enabled.
OnChip USB Controller
By default, the USB controller is enabled for all devices. However, the
USB devices, keyboard and USB mouse support options must be
enabled separately for them to function.
38 IB791 User' s Manual