IBM ThinkPad 760E Instruction Manual page 248

Troubleshooting
Problem
My modem application does not
work with the PC Card modem.
My PC Card modem does not
work.
I cannot use PC Cards other than
IBM ones in the OS/ 2 Warp
environment.
230
IBM ThinkPad 760E, 760ED, or 760EL User's Guide
Action
If the PC Card Director shows the PC Card modem status "Ready, " add
the following option switch in the CONFIG.SYS file:
For DOS:
DEVICE=C:\THINKPAD\IBMDSS14.SYS /IO =x (or /IO1=x)
For OS/ 2 :
DEVICE=C:\THINKPAD\IBM2SS14.SYS /IO =x (or /IO1=x)
Note: x shows the PC Card slot number ( 1 for upper slot, 2 for lower
slot, or 12 for both slots) on the computer and "/ I O1=" shows the slot
number for a docking station or port replicator that is attached to the
computer.
Your computer is equipped with a built-in Mwave modem. If you want to
use the PC Card modem instead of the Mwave modem, you need to
release a communications port ( C OM port) for the PC Card modem. Do
the following:
For OS/ 2 or Windows , start the ThinkPad Features program and
release a COM port for your PC Card modem by:
– Disabling the infrared device by clicking on the
Infrared ( ) icon.
– Disabling the internal modem by clicking on the
Modem ( ) icon.
– Changing the COM port for the internal modem from COM2 to
COM1.
See page 35 to use the ThinkPad Features program.
For DOS , use the PS2 command to disable the telephony function or
infrared port and to release a COM port for the PC Card modem.
For more information or the latest tips, refer to:
– PC Card problems on page 254
– READ.ME file and PCMCIA.CRD file in the THINKPAD
subdirectory of the computer
If you do not have the PC Card device driver for OS/ 2 but you have one
for DOS, your PC Card may run in the VDM ( v irtual DOS machine)
environment. Refer to "Virtual Card Services for OS/ 2 " on page 290 for
setting the VDM and the sample configuration files on the PC Card
Director Diskette for OS/ 2 and Windows 95. ( I f the PC Card Director
Diskette for OS/ 2 and Windows 95 did not come with the computer, create
it using the Diskette Factory program.)