Abit PX5 User Manual page 36

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ä 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.
ä 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.
l 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.
Chapter 3