Hard Disk Configuration - American Megatrends 43 Series User Manual

STANDARD CMOS SETUP Options,

Hard Disk Configuration

Hard disk drive types are identified by the following parameters:
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Parameter
Type The number designation for a drive with certain
identification parameters.
Cylinders The number of cylinders in the disk drive.
Heads The number of heads.
Write Precompensation The size of a 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
normally park when the system is shut down.
Sectors The number of sectors per track. Hard drives that use
MFM have 17 sectors per track. RLL drives have 26
sectors per track. ERLL and ESDI drives have 34
sectors per track.
Capacity The formatted capacity of the drive based on the
following formula:
(Number of heads) X (Number of cylinders) X (17
sectors per cylinder) X (512 bytes per sector)
Description