Peak 555A User’s Guide
BIOS Setup 4-
36
Secondary
Master:
None
0
0
0
0
0
0
Secondary Slave None
0
0
0
0
0
0
When HDD type is in ‘user’ type, the “MODE” option will be opened for user
to select their own HDD mode.
(2) HDD Modes
The Award BIOS supports 3 HDD modes : NORMAL, LBA & LARGE
NORMAL mode
Generic access mode in which neither the BIOS nor the IDE controller will
make any transformations during accessing.
The maximum number of cylinders, head & sectors for NORMAL mode
are 1024, 16 & 63.
no. Cyclinder
(1024)
x no. Head
( 16)
x no. Sector
( 63)
x no. per sector
( 512)
528 Megabytes
If user set his HDD to NORMAL mode, the maximum accessible HDD
size will
be 528 Megabytes even though its physical size may be greater
than that!
LBA (Logical Block Addressing) mode
A new HDD accessing method to overcome the 528 Megabyte
bottleneck. The
number of cylinders, heads & sectors shown in
setup may not be the number
physically contained in
the HDD.
During HDD accessing, the IDE controller will transform the logical
address
described by sector, head & cylinder number into its own physical
address
inside the HDD.