I cant get all data from com port in Dell Optiplex 9010- on each other computers I can read all data from com port, but on this Dell model no. I change all COM port settings on BIOS, on Windows 7, but still can not read all data comming on this port. When I use RS232-USB converter I can read all, on hardware Com port no. System is Windows 7 Pro 64 bit. Where is a problem???
What are you using the COM port for?
I have one of these, but I have never used the COM port. In the old days, they used to be used for mice and modems, but I've long since migrated to USB.
I change all COM port settings on BIOS, on Windows 7,
What the heck are you doing in BIOS ??????
That is not where you change COM port settings.
In Bios I can change COM port Number, IRQ, Address..
And those parameters rarely, if ever, require changing. I use COM ports quite a lot to communicate to test equipment with RS232 ports.
But you go right ahead and keep on what you are doing. No one is going to stop you.