Lanner electronics AP-545V, Manual

Page: 34 / 69

AMI BIOS SETUP
AP-545V/28
parameters (number of heads, number of cylinders, number of sectors, the starting write
precompensation cylinder, and drive capacity). Choose
Type
and the appropriate hard disk drive
type (1-46). The old MFM hard drive types are listed on pages 26~27. If the drive parameters of
the MFM drive do not match any drive type listed on pages 26~27, select
User
in the
Type
field and
enter the drive parameters on the screen that appears.
User-Defined Drive :
If you are configuring a SCSI drive or an MFM, RLL, ARLL, or ESDI drive
with the drive parameters that do not match drive types 1-46, you can select the
User
in the
Type
field. You must then enter the drive parameters on the screen that appears. The drive parameters
include:
l
Cylinder (number of cylinders),
l
Head (number of heads)
l
WPcom (starting write precompensation cylinder),
l
Sec (number of sectors)
l
Size (drive capacity)
Parameter Description
Type
The number for a drive with a certain identification
Parameters.
Size
(Hard Disk Drive Capacity)
The formatted capacity of the drive is (Number of heads)
x (Number of cylinders) x (Number of sectors per track)
x (512 bytes per sector)
Cylinder
(Number of Cylinders)
The number of cylinders in the disk drive.
Head (Number of Heads)
The number of heads.
Wpcom
(Write Precompensation)
The size of sector gets progressively smaller as the track
Diameter diminishes. Yet each sector must still hold
512 bytes. Write precompensation circuitry on the hard
disk compensates for the physical difference in sector
size by boosting the write current for sectors on inner
tracks. This parameter is the track number where write
precompensation begins.
Landing Zone
This number is the cylinder location where the heads will
Normally park when the system is shut down.
Sectors
(Number of Sectors)
The number of sectors per track. MFM drives have
17 sectors per track. RLL drives have 26 sectors per
track. ESDI drives have 34 sectors per track. SCSI
and IDE drives have more sectors per track.
Configuring IDE Drives :
If the hard disk drive to be configured is an IDE drive, select the
appropriate drive icon (Pri Master, Pri Slave). Select the IDE Detect icon to automatically detect all