Bear with me please. My modem is 56k V90. external and is connected to Comm2. My system is a PIII 933 with 256mb memory and I am running Win98SE. My motherboards booklet states my “On-board super Multi-I/O chip supports 2 serial ports with 16550 Fast UART” Going the route Start>Settings>Control Panel>Modems>Properties>General>Maximum Speed shows I can set it up to 115200. This I have done. Going the route Start>Settings>Control Panel>Modems>Properties>Connection>Port Settings>Receive Buffer and Transmit Buffer are both set to High (14 and 16 respectively). Use FIFO buffers (requires 16500 compatible UART) is flagged. Going Start>Settings>Control Panel>System>Device Manager>Ports>Com2>Port Settings>Bits per second shows that it is set to 9600. What will the effect be if I push this up to 115200 or higher (as is indicated can be done). What are the advantages or disadvantages of this?

Well, it will give the highest thru put that your connection is capable of. But the speed is lmited by the FCC (it has to do with how much power can be transmitted over the phone lines or something) so you top speed will probably average around 53k. Larry

The 115200 setting applies only to the maximum internal data transfer rate, and has no effect of your connection to the outside world.

Actually it does have a bearing on speed but since so many other variables come into play, such as line noise, weather, switching relays etc, I don't see the need to quible about it.