Abit LM6E Pentium II User Manual page 37

Introduction of BIOS
The HDD auto detection option in the Main Menu will automatically detect
the parameters of your hard disk and the mode supported.
➤ Normal mode:
➤ LBA (Logical Block Addressing) mode:
➤ LARGE Mode:
#
For further information about HDD installation, refer to Appendix B.
Drive A:
If you have installed the floppy disk drive here, then you can select the type
of floppy drive it can support. Six options are available: None$360K,
5.25 in. $1.2M, 5.25in. $720K, 3.5 in. $1.44M, 3.5 in. $2.88M, 3.5 in.
$
Back to None.
Drive B:
If you have installed the floppy disk drive here, then you can select the type
of floppy drive it can support. Six options are available: None$360K,
5.25 in. $1.2M, 5.25in. $720K, 3.5 in. $1.44M, 3.5 in. $2.88M, 3.5 in.
$
Back to None.
Standard normal mode supports hard disks of 528MB or less.
This mode directly uses positions indicated by Cylinders
(CYLS), Heads, and Sectors to access data.
The earlier LBA mode can support HDDs capacity of up to
8.4GB, and this mode uses a different method to calculate the
position of disk data to be accessed. It translates Cylinders
(CYLS), Heads and Sectors into a logical address where data
are located. The Cylinders, Heads, and Sectors displayed in
this menu do not reflect the actual structure of the hard disk,
they are just reference values used to calculate actual
positions. Currently, all high capacity hard disks support this
mode, that's why we recommend you use this mode.
Currently, the BIOS can support INT 13h extension function,
then the LBA mode supports hard disk drives capacity
exceeding 8.4GB.
When the number of cylinders (CYLs) of the hard disk
exceeds 1024 and DOS is not able to support it, or if your
operating system does not support LBA mode, you should
select this mode.
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