Acer AR180 F1 - Manual (Page 91)

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• DMA Mode
• S.M.A.R.T. For Hard disk drives - Self-Monitoring Analysis and
Reporting Technology (SMART) can help predict impending drive
failures. Select Auto to allow the BIOS to automatically detect hard
disk drive support.
• 32Bit Data Transfer - Select Enable to enable the function of 32-bit
IDE data transfer.
IDE Detect Timeout (Sec): Use this feature to set the time-out value for
the BIOS to detect the ATA, ATAPI devices installed in the system.
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.