System Security
Appendix C. BIOS Utility C-9
The On Board Communication Ports menu allows you to change the
following parameters.
Serial Port 1 Base Address
Note:
The serial port base address is
expressed in hexadecimal format.
The serial port can accommodate a modem, serial mouse, serial
printer, or other serial devices. The default setting for the serial port
base address is 3F8h(IRQ 4).
Other options include:
• 2F8h(IRQ 3)
• 3E8h(IRQ 4)
• 2E8h(IRQ 3)
• Disabled
Caution
Make sure the serial port base address does not conflict with the
address used by a PCMCIA card, if one is installed.
Parallel Port Base Address
Note:
The parallel port base address is
expressed in hexadecimal format.
The parallel port can accommodate a parallel printer or other
parallel devices. The default setting for the parallel port base
address is 3BCh(IRQ 7). The other options for this parameter are:
• 278h(IRQ 5)
• 378h(IRQ 7)
• Disabled
Parallel Port Operation Mode
The parallel port supports four operation modes:
• Standard and Unidirectional
• Standard and Bidirectional
• Enhanced Parallel Port(EPP)
• Extended Capabilities Port(ECP)
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