Acer AW2000h-AW170h User Manual page 84

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Select Description
4 Use PIO mode 4. It has a data transfer bandwidth of 32 bits.
Enabled Enable 32-bit data transfer.
• DMA Mode
Select Description
Auto Automatically detect IDE DMA mode when the IDE disk drive
support cannot be determined.
SWDMA0 Use Single Word DMA mode 0. It has a data transfer rate of
2.1 MBs.
SWDMA2 Use Single Word DMA mode 2. It has a data transfer rate of
8.3 MBs.
MWDMA0 Use Multi Word DMA mode 0. It has a data transfer rate of 4.2
MBs.
MWDMA1 Use Multi Word DMA mode 1. It has a data transfer rate of
13.3 MBs.
MWDMA2 Use Multi-Word DMA mode 2. It has a data transfer rate of
16.6 MBs.
UDMA0 Use Ultra DMA mode 0. It has a data transfer rate of 16.6 MBs.
It has the same transfer rate as PIO mode 4 and Multi Word
DMA mode 2.
UDMA1 Use Ultra DMA mode 1. It has a data transfer rate of 25 MBs.
UDMA2 Use Ultra DMA mode 2. It has a data transfer rate of 33.3 MBs.
UDMA3 Use Ultra DMA mode 3. It has a data transfer rate of 66.6 MBs.
UDMA4 Use Ultra DMA mode 4. It has a data transfer rate of 100 MBs.
UDMA5 Use Ultra DMA mode 5. It has a data transfer rate of 133 MBs.
UDMA6 Use Ultra DMA mode 6. It has a data transfer rate of 133 MBs.
4 System BIOS