How can I get the fax modem to work with DOS programs on ChemBook notebooks?
By default, the fax modem, as installed on ChemBook, is configured to be on COM 3, IRQ 10 or 11. There are some older DOS programs which do not support interrupt requests over 7. To use the fax modem for these DOS programs, the best way is to disable the Infrared Port built-in in each ChemBook, which is on COM 2, IRQ 3. After disabling the Infrared Port, the new setting for the Modem will be on COM 2, IRQ 3. For instructions on how to disable the built-in Infrared Port in the CMOS BIOS setup, please read the user’s manual, since the settings varies between different notebook models. By disabling the IrDA port, the overall performance of the computer is not affected. The only disadvantage would be that you can no longer use the Infrared wireless communication feature of the computer.
