IEI Technology WAFER-6820, User Manual, Page: 45 / 61

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AC’97 Audio
This item allows you to decide to enable/disable the VT82C686A chipset
family to support AC97 Audio.
The choice: Auto, 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 read/writes per sector the drive can support.
The choice: Enabled, Disabled
Onboard FDD Controller
Select Enabled if your system has a floppy disk controller (FDC) installed
on the system board and you wish to use it. If you install and-in FDC or the
system has no floppy drive, select Disabled in this field.
The choice: Enabled, Disabled
Onboard Serial Port 1/Port 2
Select an address and corresponding interrupt for the first and second serial
ports.
The choice: 3F8/IRQ4, 2E8/IRQ3, 3E8/IRQ4, 2F8/IRQ3, Disabled,
Auto
UART Mode Select
Select a serial port 2 operation mode.
The choice: Normal, IrDA, ASKIR