Biostar M7TDF User Manual page 58

Chapter 2
IDE Primary / Secondary Master / Slave PIO
The IDE PIO (Programmed Input / Output) fields let you set a PIO mode
(0-4) for each of the IDE devices that the onboard IDE interface supports.
Modes 0 through 4 provides successively increased performance. In Auto
mode, the system automatically determines the best mode for each
device.
The Choices: Auto (default), Mode0, Mode1, Mode2, Mode3, Mode4.
IDE Primary / Secondary Master / Slave UDMA
Ultra DMA/100 functionality can be implemented if it is supported by
the IDE hard drives in your system. As well, your operating environment
requires a DMA driver (Windows 95 OSR2 or a third party IDE bus
master driver). If your hard drive and your system software both support
Ultra DMA/100, select Auto to enable BIOS support.
The Choices: Auto (default), Disabled.
IDE HDD Block Mode
Block mode is also called block transfer, multiple commands, or multiple
sector read / write. If your IDE hard drive supports block mode (most
new drives do), select Enabled for automatic detection of the optimal
number of block mode (most new drives do), select Enabled for
automatic detection of the optimal number of block read / write per
sector where the drive can support.
The Choices: Enabled (default), Disabled.
USB Controller
Select Enabled if your system contains a Universal Serial Bus (USB) controller and
you have USB peripherals.
The Choices: Enabled (default), Disabled.
USB Keyboard Support
The default value is Disabled.
Enabled
Disabled (default)
AC97 Audio/ Modem
This item allows you to decide to enable/ disable to support AC97 Audio/Modem.
The Choices: Auto (default), Disabled.
Enable USB Keyboard Support.
Disable USB Keyboard Support.
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BIOS Setup