Kontron PCI-760 - Manual (Page 48)

10. AMI BIOS Configuration
46 PCI-760 – User’s Guide (V1.10)
10.3.2.7. Type
Select the type of device connected to the system.
Not Installed , Auto , CD/DVD and ARMD ( A TAPI R emovable M edia D evice) .
10.3.2.8. LBA/Large Mode
The LBA (Logical Block Addressing)/Large Mode option allows you to enable or disable support for IDE devices with
capacities greater than 528MB. The maximum drive capacity in the LBA mode is 137GB.
Auto This setting allows the BIOS to auto-detect LBA mode control on the specified channel (if the device
supports it and the device is not already formatted with LBA Mode disabled).
Disabled Disables the LBA Mode and prevent the BIOS from using LBA mode control on the specified channel.
10.3.2.9. Block (Multi-Sector Transfer)
If your hard disk supports the block mode, select Auto for the automatic determination of the number of the blocks per
request. Several sectors can be at the same time read/written. The data transfer rate will be increased.
Available settings are: Auto and Disabled.
Auto The data transfer from and to the device occurs multiple sectors at a time if the device supports it. Block
mode allows transfers of up to 64Kb per interrupt.
Disabled The data transfer from and to the device occurs one sector at a time. Only 512 byte of data can be
transferred per interrupt if block mode is not used.
This setting should be used only if read and write failures occur with “Auto”.
10.3.2.10. PIO Mode
These fields allow your system IDE controller to work faster. Rather than have the BIOS issue a series of commands that
transfer to or from the IDE drive, PIO (Programmed Input/Output) allows the BIOS to communicate with the controller
and CPU directly.
The system supports five modes, numbered from 0 to 4, which primarily differ in timing. Available settings are: 0, 1, 2, 3,
4 and Auto. When Auto is selected, the BIOS will select the best available mode.
Available settings are: Auto , 0, 1, 2, 3 and 4.
Auto
This setting allows the BIOS to auto-detect the PIO mode. This setting is to be used if the IDE disk drive
cannot be determined.
0 This setting allows the BIOS to use the PIO mode 0. It has a data transfer rate of 3.3MBs.
1 This setting allows the BIOS to use the PIO mode 1. It has a data transfer rate of 5.2MBs.
2 This setting allows the BIOS to use the PIO mode 2. It has a data transfer rate of 8.3MBs.
3 This setting allows the BIOS to use the PIO mode 3. It has a data transfer rate of 11.1MBs.
4
This setting allows the BIOS to use the PIO mode 4. It has a data transfer rate of 16.6MBs. This setting
generally works with all hard disk drives manufactured after 1999. For other disk drive, such as IDE CD-
ROM drives, check the specifications of the drive.
Do not change the default setting “ Auto ”.
If some read and write failures occur, check the length and quality of the integrated device cable first or
set this option to a setting with a lower data transfer rate as specified for your device.