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H8SSL-i2 User's Manual
LBA/Large Mode
LBA (Logical Block Addressing) is a method of addressing data on a disk
drive. In the LBA mode, the maximum drive capacity is 137 GB. For drive
capacities of over 137 GB, your system must be equipped with 48-bit LBA
mode addressing. If not, contact your manufacturer or install an ATA/133
IDE controller card that supports 48-bit LBA mode. The options are Disabled
and
Auto
.
Block (Multi-Sector Transfer)
Block mode boosts IDE drive performance by increasing the amount of data
transferred. Only 512 bytes of data can be transferred per interrupt if block
mode is not used. Block mode allows transfers of up to 64 KB per interrupt.
Select "Disabled" to allow the data to be transferred from and to the device
one sector at a time. Select "Auto" to allows the data transfer from and to the
device occur multiple sectors at a time if the device supports it. The options
are
Auto
and Disabled.
PIO Mode
PIO (Programmable I/O) mode programs timing cycles between the IDE drive
and the programmable IDE controller. As the PIO mode increases, the cycle
time decreases. The options are
Auto
, 0, 1, 2, 3, and 4. Select Auto to allow
AMI BIOS to auto detect the PIO mode. Use this value if the IDE disk drive
support cannot be determined. Select 0 to allow AMI BIOS to use PIO mode
0. It has a data transfer rate of 3.3 MBs. Select 1 to allow AMI BIOS to use
PIO mode 1. It has a data transfer rate of 5.2 MBs. Select 2 to allow AMI
BIOS to use PIO mode 2. It has a data transfer rate of 8.3 MBs. Select 3 to
allow AMI BIOS to use PIO mode 3. It has a data transfer rate of 11.1 MBs.
Select 4 to allow AMI BIOS to use PIO mode 4. It has a data transfer rate of
16.6 MBs. This setting generally works with all hard disk drives manufactured
after 1999. For other disk drives, such as IDE CD-ROM drives, check the
specifi cations of the drive.
DMA Mode
Select the DMA mode of the drive. Options are
Auto
, SWDMA0, SWD-
MA1, SWDMA2, MWDMA0, MWDMA1, MWDMA2, UDMA0, UDMA1 and
UDMA2.
