64
3
BIOS Setup
IDE HDD Block Mode
Enabled
The IDE HDD uses the block mode. The system
BIOS will check the hard disk drive for the
maximum block size the system can transfer. The
block size will depend on the type of hard disk
drive.
Disabled
The IDE HDD uses the standard mode.
IDE DMA Transfer Access
This field, when Enabled, will enhance the IDE DMA transfer of
an IDE hard disk drive.
On-Chip Primary PCI IDE and On-Chip Secondary PCI IDE
These fields allow you to enable or disable the primary and sec-
ondary IDE controller. Select Disabled if you want to add a differ-
ent 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
The BIOS will automatically set the system according
to your hard disk drive’s timing.
Mode 0-4
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.
