Foxconn NF4UK8AA series User Manual page 48

OnChip IDE Channel0/1 (Default: Enabled)
The integrated peripheral controller contains an IDE interface with support for
two IDE channels. Choose Enabled to activate each channel separately.
Primary/Secondary Master/Slave PIO (Default: Auto)
These four items let you assign which kind of PIO (Programmer Input/Output)
is used by IDE devices. Choose "Auto" to let the system auto detect which PIO
mode is best.
Primary/Secondary Master/Slave UDMA (Default: Auto)
UItraDMA technology provides faster access to IDE devices. If you install a
device that supports UItraDMA, change the appropriate items on this list to
Auto.
IDE DMA transfer access (Default: Enabled)
This item is used to enable or disable the DMA transfer function of the IDE
Hard Drive.
Serial-ATA 1/2 (Default: Enabled)
This item is used to enable or disable onchip Serial-ATA controller 1/2.
IDE Prefetch Mode (Default: Enabled)
The onboard IDE drive interfaces support IDE prefetching, for faster drive
accesses. When you install a primary and/or secondary add-in IDE interface,
set this option to Disabled if the interface dose not support prefetching.
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IDE Function Setup Menu
Chapter 3 BIOS Description