Asus P5N73-CM Manual page 52

Primary.IDE.Master/Slave.[Auto]
Select [Auto] to automatically detect an IDE hard disk drive. If automatic detection is
successful, the BIOS automatically fills in the correct values for the remaining fields on this
sub-menu. If the hard disk was already formatted on a previous system, the setup BIOS
may detect incorrect parameters. Select [Manual] to manually enter the IDE hard disk
drive parameters. If no drive is installed select [None]. Configuration options: [None] [Auto]
[Manual]
Access.Mode.[Auto]
The default [Auto] allows automatic detection of an IDE hard disk drive. Select [CHS] for this
item if you set the Primary IDE Master/Slave to [Manual]. Configuration options: [CHS] [LBA]
[Large] [Auto]
Before attempting to configure a hard disk drive, ensure that you have the correct
configuration information supplied by the drive manufacturer. Incorrect settings may cause
the system to fail to recognize the installed hard disk.
Capacity
Displays the auto-detected hard disk capacity. This item is not configurable.
Cylinder
Shows the number of the hard disk cylinders. This item is not configurable.
Head
Shows the number of the hard disk read/write heads. This item is not configurable.
Sector
Shows the number of sectors per track. This item is not configurable.
Transfer.Mode
Shows the Transfer mode. This item is not configurable.
After entering the IDE hard disk drive information into BIOS, use a disk utility, such as
FDISK, to partition and format new IDE hard disk drives. This is necessary so that you can
write or read data from the hard disk. Ensure to set the partition of the Primary IDE hard
disk drives to active.
2.3.5. SATA.1-4
While entering Setup, the BIOS automatically detects the presence of Serial ATA devices.
There is a separate sub-menu for each SATA device. Select a device item then press <Enter>
to display the SATA device information.
The BIOS automatically detects the values opposite the dimmed items (Capacity, Cylinder,
Head, Precomp, Landing Zone and Sector). These values are not user-configurable. These
items show 0 if no SATA device is installed in the system.
Extended.IDE.Drive.[Auto]
Selects the type of fixed disk connected to the system.
Configuration options: [None] [Auto]
2-12 Chapter 2: BIOS setup