User manual
12
LifeBook C Series Notebook BIOS
Serial/Parallel Port Configuration Submenu of the Advanced Menu
The Serial/Parallel Port Configuration submenu 
provides the ability to set the I/O addresses and inter-
rupt levels for the serial (infrared) and parallel ports of 
your notebook.
Figure 5. Serial/Parallel Port Configuration Submenu
I/O addresses, DMA channels, and 
Interrupt levels can be entered in various 
ways, including via the BIOS setup utility, 
the control software for the I/O device, or 
the hardware. If any two ports or devices 
have the same I/O address assigned, your 
notebook will not function normally.
• To prevent IRQ and address conflicts, 
avoid changing the default settings. If 
you must change the settings, you can 
call 1-800-8FUJITSU for technical 
assistance.
• The BIOS will warn you of a resource 
conflict by placing a yellow asterisk 
next to each device that is in conflict.
• All I/O addresses in Table 5 are in 
hexadecimal.
PhoenixBIOS Setup Utility
F1 Help
ESC Exit
Select Item
Select Menu
-/Space
Enter
F9 Setup Defaults
F10 Save and Exit
Change Values
Select Sub-Menu
▲
 Advanced 
Item Specific Help
Serial Port:  Enabled
 I/O Address:  [3F8 - 3FF]
 Interrupt:  [IRQ 4]
Infrared Port:  [Enabled]
 Mode: [FIR]
 I/O Address:  [2E8 - 2EF]
 Interrupt:  [IRQ 3]
 I/O Address:  [400 - 43F] 
 DMA Channel:  [DMA 3]
Parallel Port:  [Enabled]
 Mode:  [Bi-directional]
 I/O Address:  [378-37F]
 Interrupt:  [IRQ 7]
[Disabled]
The port is disabled.
[Enabled]
The port is enabled
with user configuration.
[Auto]
Plug & Play OS
configure the port.
Serial/Parallel Port Configurations










