Kontron PCI-759, Руководство пользователя

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10. AMI BIOS Configuration PCI-759 – User’s Guide (V1.02)
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10.3.2.9.
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.
10.3.2.10.
DMA Mode
This option allows you to select the DMA mode option (depending on the integrated device). Available settings are:
Auto , SWDMA0, SWDMA1, SWDMA2, MWDMA0, MWDMA1, MWDMA2, UDMA0, UDMA1, UDMA2, UDMA3, UDMA4, UDMA5 and
UDMA6.
Auto
If “ Auto ” is set, the BIOS auto-detects the DMA mode. This is the default setting.
SWDMA0
If “ SWDMA0 ” is set the BIOS uses the Single Word DMA mode 0. It has a data transfer rate of 2.1MBs.
SWDMA1 If “ SWDMA1 ” is set the BIOS uses the Single Word DMA mode 1. It has a data transfer rate of 4.2MBs.
SWDMA2 If “ SWDMA2 ” is set the BIOS uses the Single Word DMA mode 2. It has a data transfer rate of 8.3MBs.
MWDMA0 If “ MWDMA0 ” is set the BIOS uses the Multi Word DMA mode 0. It has a data transfer rate of 4.2MBs.
MWDMA1 If “
MWDMA1
” is set the BIOS uses the Multi Word DMA mode 1. It has a data transfer rate of 13.3MBs.
MWDMA2 If “
MWDMA2
” is set the BIOS uses the Multi Word DMA mode 2. It has a data transfer rate of 16.6MBs.
UDMA0 If “ UDMA0 ” is set the BIOS uses the Ultra DMA mode 0. It has a data transfer rate of 16.6MBs (the same
data transfer rate as PIO mode 4, and Multi Word DMA mode 2).
UDMA1 If “ UDMA1 ” is set the BIOS uses the Ultra DMA mode 1. It has a data transfer rate of 25MBs.
UDMA2 If “ UDMA2 ” is set the BIOS uses the Ultra DMA mode 2. It has a data transfer rate of 33.3MBs.
UDMA3 If “ UDMA3 ” is set the BIOS uses the Ultra DMA mode 3. It has a data transfer rate of 44.4MBs. It is
required to be used the 80-conductor ATA cable for this data transfer rate.
UDMA4 If “
UDMA4
” is set the BIOS uses the Ultra DMA mode 4. It has a data transfer rate of 66.6MBs. It is
required to be used the 80-conductor ATA cable for this data transfer rate.
UDMA5 If “
UDMA5
” is set the BIOS uses the Ultra DMA mode 5. It has a data transfer rate of 99.9MBs. It is
required to be used the 80-conductor ATA cable for this data transfer rate.
UDMA6 If “ UDMA6 ” is set the BIOS uses the Ultra DMA mode 6. It has a data transfer rate of 133.2MBs. It is
required to be used an 80-conductor ATA cable for this data transfer rate.