Intel FPC 5084 - Manual (Page 40)

FPC 5084
30 AMI BIOS Setup Utility
Serial Port1 Address
This item specifies the base I/O port address and Interrupt
Request address of serial port 1. The Optimal setting is
3F8/IRQ4. The Fail-Safe default setting is 3F8.
Serial Port1 IRQ
This item specifies the IRQ used by the serial port 1.
Serial Port2 Address
This item specifies the base I/O port address and Interrupt
Request address of serial port 2. The Optimal setting is
2F8/IRQ3. The Fail-Safe setting is 2F8.
Serial Port2 IRQ
This item specifies the IRQ used by the serial port 2.
Serial Port3 Address
This item specifies the base I/O port address and Interrupt
Request address of serial port 3.
Serial Port3 IRQ
This item specifies the IRQ used by the serial port 3.