Asus P2B - Manual (Page 39)

ASUS P2B User’s Manual 39
IV. BIOS SETUP
IV
. BIOS
Standard CMOS
Time
To set the time, highlight the “Time” field and then press either / or
<+>/<–> to set the current time. Follow the hour, minute and second format. Valid values for
hour, minute and second are: (Hour: (00 to 23), Minute: (00 to 59), Second: (00 to 59).
NOTE: You can bypass the date and time prompts by creating an AUTOEXEC.BAT
file. For information on how to create this file, please refer to the MS-DOS manual.
Hard Disks
This field records the specifications for all non-SCSI hard disk drives installed in your
system. The onboard PCI IDE connectors provide Primary and Secondary channels
for connecting up to four IDE hard disks or other IDE devices. Each channel can
support up to two hard disks; the first of which is the “master” and the second is the
“slave”.
Specifications for SCSI hard disks need not to be entered here since they operate
using device drivers and are not supported by the motherboard BIOS software. If the
motherboard has SCSI onboard, see the SCSI section for information on configuring
SCSI devices. If you are using SCSI controller cards, refer to their respective docu-
mentations on how to configure and setup SCSI devices.
For IDE hard disk drive setup, you can:
• Use the Auto setting for detection during bootup.
• Use the IDE HDD AUTO DETECTION in the main menu to automatically
enter the drive specifications.
• Enter the specifications yourself manually by using the “User” option.
The entries for specifying the hard disk type include CYLS (number of cylinders),
HEAD (number of read/write heads), PRECOMP (write precompensation), LANDZ
(landing zone), SECTOR (number of sectors) and MODE. The SIZE field auto-
matically adjusts according to the configuration you specify. The documentation that
comes with your hard disk should provide you with the information regarding the
drive specifications.
The MODE entry is for IDE hard disks only, and can be ignored for MFM and ESDI
drives. This entry provides three options: Normal, Large, LBA, or Auto (see below).
Set MODE to the Normal for IDE hard disk drives smaller than 528MB; set it to LBA
for drives over 528MB that support Logical Block Addressing (LBA) to allow larger
IDE hard disks; set it to Large for drives over 528MB that do not support LBA. Large
type of drive can only be used with MS-DOS and is very uncommon. Most IDE
drives over 528MB support the LBA mode.