Standard CMOS SetupCBI/CGI Technical Reference
Chassis Plans 4-3
through 1F7H, 3F6H and IRQ14. The secondary controller uses I/O port addresses 170H
through 177H, 376H and IRQ15.
The AMIBIOS enhanced IDE (EIDE) interface can support IDE Type4 disk drives.
This EIDE interface allows disk drives greater than 528MB to be used.
The hard disk drives can be detected automatically by AMIBIOS (if they are IDE drives)
or can be defined manually by the user, as described below.
The Setup screen displays the system options:
Pri Master: Auto
Pri Slave: Auto
Sec Master: Auto
Sec Slave: Auto
The Help window displays:
1-46: Predefined types
USER: Enter parameters manually
AUTO: Set parameters automatically on each boot
CD-ROM: Use for ATAPI CD-ROM drives
Or press ENTER to set all HDD parameters automatically
To set up the hard disk drive parameter(s), use the plus (+) key or PgDn key to scroll
through the drive types to locate the correct type of disk drive(s) in your computer.
As you scroll through the disk types, the drive Type displays, along with values for size,
cylinders, heads, write precompensation and sectors. Available predefined hard disk
drive types are listed at the end of this section. If the parameters supplied by the
manufacturer of your disk drive do not match any of these preprogrammed drive types,
you may have AMIBIOS detect the drive type automatically (if it is an IDE drive), or
you may select the User drive type to enter the parameters manually as described below.
Set the drive type to CD-ROM to boot from a CD-ROM drive.
Not Installed is available for use as an option. This option can be used for diskless work
stations.
Automatic Detection of Drive Type
If any of the hard disks are IDE drives, AMIBIOS can automatically configure the drive
type by detecting the IDE drive parameters and reporting them on the Standard CMOS
Setup screen.
You may invoke automatic detection of IDE drives in one of three ways:
•Press Enter when the cursor is in the Type field. AMIBIOS detects the
drive type and parameters as requested. If the drive type is not defined in
the drive type table, this option displays User as the drive type and displays
the parameters which were detected by AMIBIOS. The detected drive type
values may then be saved in the CMOS.