EPOX nVIDIA nForce3 250Gb, User Manual, Page: 47 / 90

BIOS
Page 4-11
Onboard I/O Chip Setup
Scroll to Onboard I/O Chip Setup and press <Enter>. The following screen appears:
Onboard FDC Controller
Select “Enabled” if you wish to use onboard floppy disk controller (FDC). If you
install an external FDC or the system has no floppy drive, select “Disabled “in this field.
Options: Enabled, Disabled.
Onboard Serial Port 1/2
Select an address and corresponding interrupt for the first and second serial ports.
Options: 3F8/IRQ4, 2E8/IRQ3, 3E8/IRQ4, 2F8/IRQ3, Disabled, Auto.
UART Mode Select
This field configures the 2nd serial port for IR application. Select the required IR
protocol or select “Normal” to disable IR mode.
Options: Normal, IrDA and ASKIR.
RxD, TxD Active
When the above UART Mode Select is in IR mode, this field configures the
receive and transmit signals generated from the IR port.
Options: Hi-Hi, Hi-Lo, Lo-Hi, and Lo-Lo.
IR Transmission delay
This item allows you to enabled/disable IR transmission delay.
Options: Enabled, Disabled.
UR2 Duplex Mode
This item allows you to select IR half/full duplex function.
Options: Half, Full.