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X8DTU/X8DTU-F User’s Manual
DMA Mode
Select Auto to allow the BIOS to automatically detect IDE DMA mode when the
IDE disk drive support cannot be determined. The options are Auto, SWDMAn,
MWDMAn, and UDMAn. See the table below for DMA Mode Select Options.
DMA Mode Select Options
Option Selected DMA Mode Max. Transfer Rate
SWDMA 0 Single-Word DMA 0 2.1 MB/s
SWDMA1 Single-Word DMA 1 4.2 MB/s
SWDMA 2 Single-Word DMA 2 8.3MB/s
MWDMA 0 Multi-Word DMA 0 4.2 MB/s
MWDMA1 Multi-Word DMA 1 13.3 MB/s
MWDMA 2 Multi-Word DMA 2 16.6 MB/s
UDMA 0 Ultra DMA 0 16.6 MB/s
UDMA 1 Ultra DMA 1 25 MB/s
UDMA 2 Ultra DMA 2 33.3 MB/s
UDMA 3 Ultra DMA 3 44.4 MB/s
UDMA 4 Ultra DMA 4 66.6 MB/s
UDMA5 Ultra DMA 5 100 MB/s
UDMA 6 Ultra DMA 6 133 MB/s
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 AMI BIOS to automatically de-
tect hard disk drive support. Select Disabled to prevent the AMI BIOS from using
the S.M.A.R.T. Select Enabled to allow the AMI BIOS to use the S.M.A.R.T. to
support hard drive disk. The options are Disabled, Enabled, and Auto.
32Bit Data Transfer
Select Enable to enable the function of 32-bit IDE data transfer. The options are
Enabled and Disabled.
PCI/PnP Confi guration
Clear NVRAM
This feature clears the NVRAM during system boot. The options are No and Yes.
Plug & Play OS
Selecting Yes allows the OS to confi gure Plug & Play devices. (This is not required
for system boot if your system has an OS that supports Plug & Play.) Select No to
allow the AMI BIOS to confi gure all devices in the system.
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