Asus A7N8X Series User Manual page 67

Head
This field configures the number of read/write heads. Refer to the drive
documentation to determine the correct value. To make changes to this
field, set the IDE Primary Master field to [Manual] and the Access Mode to
[CHS].
Precomp
This field displays the precompressed volumes on the hard disk, if any, in
MB.
Landing Zone
This field displays the drive's maximum useable capacity as calculated by
the BIOS based on the drive information you entered.
Sector
This field configures the number of sectors per track. Refer to the drive
documentation to determine the correct value. To make changes to this field,
set the Type field to [User Type HDD] and the Translation Method field to
[Manual].
ASUS A7N8X motherboard user guide 49