Asus P4BP-MX - Manual (Page 44)

2-12 Chapter 2: BIOS Setup
2.3.1 Primary and Secondary Master/Slave
Type [Auto]
Select [Auto] to automatically detect an IDE hard disk drive. If automatic detection
is successful, Setup automatically fills in the correct values for the remaining fields
on this sub-menu. If automatic detection fails, select [User Type HDD] to manually
enter the IDE hard disk drive parameters. Refer to the next section for details.
[User Type HDD]
Manually enter the number of cylinders, heads and sectors per track for the drive.
Refer to the drive documentation or label for this information.
Before attempting to configure a hard disk drive, make sure you have the correct
configuration information supplied by the drive manufacturer.