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AS4041M-32R+ User's Manual
at a time. Select Auto to allows the data transfer from and to the device occur
multiple sectors at a time if the device supports it.
PIO Mode
PIO (Programmable I/O) mode programs timing cycles between the IDE drive
and the programmable IDE controller. As the PIO mode increases, the cycle time
decreases. The options are Auto, 0, 1, 2, 3, and 4. Select Auto to allow AMI
BIOS to auto detect the PIO mode. Use this value if the IDE disk drive support
cannot be determined. Select 0 to allow AMI BIOS to use PIO mode 0, which
has a data transfer rate of 3.3 MBs. Select 1 to allow AMI BIOS to use PIO mode
1, which has a data transfer rate of 5.2 MBs. Select 2 to allow AMI BIOS to use
PIO mode 2 (data transfer rate of 8.3 MBs). Select 3 to allow AMI BIOS to use
PIO mode 3 (data transfer rate of 11.1 MBs). Select 4 to allow AMI BIOS to use
PIO mode 4 (data transfer rate of 16.6 MBs). This setting generally works with
all hard disk drives manufactured after 1999. For other disk drives, such as IDE
CD-ROM drives, check the specifi cations of the drive.
DMA Mode
Options are SWDMA0, SWDMA1, SWDMA2, MWDMA0. MDWDMA1, MWDMA2,
UDMA0. UDMA1, UDMA2, UDMA3, UDMA4 and UDMA5. (SWDMA=Single
Word DMA, MWDMA=Multi Word DMA, UDMA=UltraDMA.)
S.M.A.R.T.
Self-Monitoring Analysis and Reporting Technology (SMART) can help predict
impending drive failures. Select "Auto" to allow BIOS to auto detect hard disk
drive support. Select "Disabled" to prevent AMI BIOS from using the S.M.A.R.T.
The options are Disabled, Enabled, and Auto.
32-Bit Data Transfer
Select "Enabled" to activate the function of 32-Bit data transfer. Select "Disabled"
to deactivate the function. The options are Enabled and Disabled.
Hard Disk Write Protect
Select Enabled to enable the function of Hard Disk Write Protect to prevent data
from being written to HDD. The options are Enabled or Disabled.
IDE Detect Time Out (Sec)
This feature allows the user to set the time-out value for detecting ATA, ATAPI de-
vices installed in the system. Options are 0 (sec), 5, 10, 15, 20, 25, 30 and 35.
7-8
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