Intel MI935 User Manual page 37

BIOS SETUP
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.
IDE DMA Transfer Access
This field, by default, is enabled
OnChip Secondary PCI IDE
This field, by default, is enabled
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.
SATA Mode
The setting choices for the SATA Mode are IDE, RAID and AHCI
Mode. Select [IDE] if you want to have SATA function as IDE.
Select [AHCI] for Advanced Host Controller Interface (AHCI) feature,
with improved SATA performance with native command queuing &
native hot plug. Select [RAID] to use SATA as RAID function. RAID
function is supported on the board if it uses ICH9R, but this is optional.
LEGACY Mode Support
When the Serial ATA (SATA) is set with the legacy mode enabled, then
the SATA is set to the conventional IDE mode. Legacy mode is
otherwise known as compatible mode.
Power ON Function
This field is related to how the system is powered on – such as with the
use of conventional power button, keyboard or hot keys. The default is
BUTTON ONLY.
MI935 User's Manual 33