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Configuring IDE Drive Types
The following table shows the drive assignments for Ide0-Ide3:
File System
Ide0
Ide1
Ide2
Ide3
To use the primary master IDE drive in your system (the typical
case), just configure Ide0 in this section, and map Ide0 to drive
C: in the Configuring Drive Assignments section.
The IDE Drive Types section lets you select the type for each of
the four IDE drives: None, User, Physical, LBA, or CHS.
The User type allows the user to select the maximum cylinders,
heads, and sectors per track associated with the IDE drive. This
method is now rarely used since LBA is now in common use.
The Physical type instructs the BIOS to query the drive's
geometry from the controller on each POST. No translation on
the drive's geometry is performed, so this type is limited to
drives of 512MB or less. Commonly, this is used with embedded
ATA PC Cards.
The LBA type instructs the BIOS to query the drive's geometry
from the controller on each POST, but then translate the
geometry according to the industry-standard LBA convention.
This supports up to 128GB drives. Use this method for all new
drives.
The CHS type instructs the BIOS to query the drive's geometry
from the controller on each POST, but then translate the
geometry according to the Phoenix CHS convention. Using this
type on a drive previously formatted with LBA or Physical
geometry might show data as being missing or corrupted.
EMBEDDED BIOS supports user-defined steps in the boot
sequence. When the entire system has been initialized, POST
executes these steps in order until an operating system
successfully loads. In addition, other pre-boot features can be
run before, after, or between operating system load attempts.
The following actions are supported:
Chapter 2:BIOS Configuration
Controller
Primary (1f0h)
Primary (1f0h)
Secondary (170h)
Secondary (170h)
Master/Slave
Master
Slave
Master
Slave
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