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The BIOS tells the operating system that the number of cylinders is 1/2
of actual and that the number of heads is double the actual. During the
disk access, the reverse conversion is done by the INT13h routine.
Example of Large mode:
CYLS. HEADS
SECTORS
MODE
1120
16
59
NORMAL
560
32
59
LARGE
Maximum HDD size:
no. Cylinders
(1024)
x no. Heads
( 32)
x no. Sectors
( 63)
x bytes per sector
( 512)
1 Gigabyte
Note:
To support LBA or Large mode, address translation software is included
in the Award BIOS HDD Sevice Routine (INT13h). If you are running an
operating system that bypasses the BIOS Int13 Service Routine, LBA
and Large Mode may fail.
HDD Low Level Format
This option will format, set the interleave mode and do a media analysis
of your hard drives. Highlight this option and press <Enter>. A screen
similar to the one below will appear.
