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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 BIOS to auto
detect the PIO mode. Use this value if the IDE disk drive support cannot
be determined. Select 0 to allow BIOS to use PIO mode 0, which has a
data transfer rate of 3.3 MBs. Select 1 to allow BIOS to use PIO mode 1,
which has a data transfer rate of 5.2 MBs. Select 2 to allow BIOS to use
PIO mode 2, which has a data transfer rate of 8.3 MBs. Select 3 to allow
BIOS to use PIO mode 3, which has a data transfer rate of 11.1 MBs.
Select 4 to allow BIOS to use PIO mode 4, which has a 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
Selects the DMA Mode. Options are Auto, 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. Select "Enabled" to allow AMI BIOS to use the S.M.A.R.T. to sup-
port hard drive disk. The options are Disabled, Enabled, and Auto.
32-Bit Data Transfer
Select "Enabled" to activate the function of 32-Bit data transfer. Select "Dis-
abled" to deactivate the function. The options are Enabled and Disabled.
IDE Detect Timeout (Sec)
Use the +/- keys to adjust and select the time out for detecting ATA/ATAPI
devices. The default value is 35.
7-9
Chapter 7: BIOS
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