Abit IT5 Series, User Manual

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3-12 Chapter 3
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LBA (Logical Block Addressing) mode:
LBA mode supports hard disk drives up to 8.4Giga. 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. The HDD
AUTODETECTION option in the Main Menu will
automatically detect the parameters of your hard disk and the
mode supported.
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LARGE Mode:
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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FDD supporting 3 Mode:
3 Mode floppy disk drives (FDD) are 3 1/2
”
drives used in Japanese
computer systems. If you need to access data stored in this kind of floppy,
you must select this mode, and of course you must have a 3 Mode floppy
drive.
2
For further information about HDD installation, refer to Appendix E.