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MegaRUM PCI Motherboard User’s Guide72
Peripheral Setup, Continued
Serial Port1 FIFO This option enables the FIFO buffer for the first serial port. The settings are
Enabled or Disabled. The Optimal default setting is Disabled. The Fail-Safe
default setting is Disabled.
Caution
Do not enable the Serial Port 1 FIFO option if a mouse is
attached to COM1.
Serial Port2 IRQ This option specifies the IRQ (Interrupt Request Line) used by serial port 1.
The settings are IRQ 3, IRQ 4 or Disabled. The Optimal default setting is IRQ
3. The Fail-Safe default setting is Disabled.
Serial Port2 Address This option specifies the base I/O port address for serial port 2. The
settings are 2F8h, 2E8h, or Disabled. The Optimal default setting is 2F8h. The
Fail-Safe default setting is not provided.
Serial Port2 FIFO This option enables the FIFO buffer for the second serial port. The settings
are Enabled or Disabled. The Optimal default setting is Disabled. The Fail-Safe
default setting is not provided.
Caution
Do not enable the Serial Port2 FIFO option if a mouse is
attached to COM2.
Parallel Port IRQ This option specifies the IRQ (Interrupt Request Line) used by the parallel
port. The settings are Disabled, IRQ 5, or IRQ 7. The Optimal default setting is
IRQ 7. The Fail-Safe default setting is Disabled.
Cont’d