Lenovo ThinkPad 380ED ThinkPad 380 and 380D User's Guide - Page 212

COM3 and COM4., Auto Configurator.

Page 212 highlights

If you are using Auto Configurator to enable your PC Card, you can change the resources assigned to the PC Card by using the Auto Configurator. Make sure the resource is not used by other devices and can be used by the PC Card and its application program. For more information, see "Starting the Auto Configurator Utility" on page 181. If you are using modem cards, some modem cards use serial port COM1 or COM2 and do not have the setup information for COM3 and COM4. These modem cards cannot be enabled when other devices are using COM1 and COM2. (For example, as a default, COM1 is used by the infrared device and COM2 is used by the modem.) Error messages are displayed to tell you that the I/O port address 3F8 or 2F8, or IRQ level 3 or 4, were not allocated. If this is the case, for OS/2, use the ThinkPad Setup Utility in the ThinkPad Features program to disable the devices using COM1 or COM2; then restart the system. 192 IBM ThinkPad 380 or 380D User's Guide

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If you are using Auto Configurator to enable your PC Card, you
can change the resources assigned to the PC Card by using the
Auto Configurator.
Make sure the resource is not used by other
devices and can be used by the PC Card and its application
program.
For more information, see “Starting the Auto
Configurator Utility” on page
181.
If you are using modem cards, some modem cards use serial
port COM1 or COM2 and do not have the setup information for
COM3 and COM4.
These modem cards cannot be enabled
when other devices are using COM1 and COM2.
(For example,
as a default, COM1 is used by the infrared device and COM2 is
used by the modem.)
Error messages are displayed to tell you
that the I/O port address 3F8 or 2F8, or IRQ level 3 or 4, were
not allocated.
If this is the case, for OS/2, use the ThinkPad Setup Utility in the
ThinkPad Features program to disable the devices using COM1
or COM2; then restart the system.
192
IBM ThinkPad 380 or 380D User's Guide