Dma mode – Kontron CP307-V BIOS User Manual

Page 34

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Advanced Setup

CP307/CP307-V BIOS Guide

Page 24

ID 35978, Rev. 2.0

P R E L I M I N A R Y

DMA Mode

This function is used to adjust the DMA mode options.

Optimal and Fail-Safe default settings: Auto

SETTING

DESCRIPTION

Auto

Use this setting to allow the BIOS to auto detect the DMA mode if the IDE disk drive support cannot
be determined.

SWDMA0

Use this setting to allow the BIOS to use Single Word DMA mode 0. This mode has a data transfer
rate of 2.1 MB/s.

SWDMA1

Use this setting to allow the BIOS to use Single Word DMA mode 1. This mode has a data transfer
rate of 4.2 MB/s.

SWDMA2

Use this setting to allow the BIOS to use Single Word DMA mode 2. This mode has a data transfer
rate of 8.3 MBs/.

MWDMA0

Use this setting to allow the BIOS to use Multi Word DMA mode 0. This mode has a data transfer
rate of 4.2 MB/s.

MWDMA1

Use this setting to allow the BIOS to use Multi Word DMA mode 1. This mode has a data transfer
rate of 13.3 MB/s.

MWDMA2

Use this setting to allow the BIOS to use Multi Word DMA mode 2. This mode has a data transfer
rate of 16.6 MBs.

UDMA0

Use this setting to allow the BIOS to use Ultra DMA mode 0. This mode has a data transfer rate of
16.6 MB/s, which is the same transfer rate as the PIO mode 4 and the Multi Word DMA mode 2.

UDMA1

Use this setting to allow the BIOS to use Ultra DMA mode 1. This mode has a data transfer rate of
25 MB/s.

UDMA2

Use this setting to allow the BIOS to use Ultra DMA mode 2. This mode has a data transfer rate of
33.3 MB/s.

UDMA3

Use this setting to allow the BIOS to use Ultra DMA mode 3. This mode has a data transfer rate of
44.4 MB/s. To use this mode, it is required that an 80-conductor ATA cable is used.

UDMA4

Use this setting to allow the BIOS to use Ultra DMA mode 4. This mode has a data transfer rate of
66.6 MB/s. To use this mode, it is required that an 80-conductor ATA cable is used.

UDMA5

Use this setting to allow the BIOS to use Ultra DMA mode 5. This mode has a data transfer rate of
99.9 MB/s. To use this mode, it is required that an 80-conductor ATA cable is used.

UDMA6

Use this setting to allow the BIOS to use Ultra DMA mode 6. This mode has a data transfer rate of
133.2 MB/s. To use this mode, it is required that an 80-conductor ATA cable is used.

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