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The maximum number of cylinders, heads and sectors for Normal mode
are 1024, 16 and 63, respectively.
no. Cylinders
(1024)
x no. Heads
( 16)
x no. Sectors
( 63)
x bytes per sector
( 512)
528 megabytes
LBA (Logical Block Addressing) Mode
The maximum HDD size supported by the LBA mode is 8.4 gigabytes. It
is obtained by the following formula.
no. Cylinders
(1024)
x no. Heads
( 255)
x no. Sectors
( 63)
x bytes per sector
( 512)
8.4 gigabytes
Large Mode
Large mode is the extended HDD access mode supported by the sys-
tem board. Some IDE HDDs have more than 1024 cylinders without
LBA support (in some cases, you may not want the LBA mode). This
system board provides another alternative to support these kinds of
HDDs.
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.
