Leadtek WinFast 6200MA User Manual - page 45
WinFast
®
6200MA User’s Manual
41
LARGE mode: This is an extended HDD access mode supported by Award Software. Some
IDE HDDs contain more than 1024 cylinders without LBA support (in some cases, user does not
want LBA). The Award BIOS provides another alternative to support these kinds of LARGE
mode:
CYLS
HEADS
SECTOR
MODE
1120
16
59
NORMAL
560
32
59
LARGE
BIOS tricks DOS (or other OS) that the number of cylinders is less than 1024 by dividing it by 2.
At the same time, the number of heads is multiplied by 2. A reverse transformation process will
be made inside INT 13h in order to access the right HDD address Maximum HDD size:
no. Cylinder (1024) x no. Head ( 32) x no. Sector ( 63) x bytes per sector ( 512) = 1 Gigabyte
NOTE:
To support LBA or LARGE mode of HDDs, there must be some
software involved. All software is located in the Award HDD
Service Routine (INT 13h). It may fail to access a HDD with
LBA (LARGE) mode selected if you are running under an
Operating System, which replaces the whole INT 13h. UNIX
operating system do not support either LBA or LARGE and must
utilize the Standard mode. UNIX can support drives larger than
528MB.
4-13
Save & Exit Setup
The "SAVE & EXIT SETUP" option will bring you back to boot up procedure with all the
changes you just recorded in the CMOS RAM
.
4-14
Exit Without Saving
The "EXIT WITHOUT SAVING" option will bring you back to normal boot up procedure
without saving any data into CMOS RAM. All old data in the CMOS will not be destroyed
.