Here's what I have:

UMAX c600 upgraded to 280MHz G3
144MB RAM
OS 9.0.4

Today I removed a Keyspan SXPro 4-port serial PCI card because I'm back down
to two serial devices (modem & digital camera) and needed to put back in an
ethernet card. I also have a video card and a USB port card installed, so
the PCI slots are full.

Now the on-board serial ports, which were just fine before, are behaving
strangely. I could not get the modem to respond in either port. I unchecked
the Keyspan extension, but there was no change. Then I ran Tech Tool (1.5;
it came with the c600). The modem port tested fine, but upon restart the
same thing happened again.

Through trial and error I determined that merely going into Tech Tool and
clicking on the serial port tab establishes communication with both ports
without even running the test.

I have zapped PRAM and reset the CUDA switch. No change.

Has anyone run into anything like this? I would rather not have to start
Tech Tools every time I want to use a serial port. I also don't have room to
put the Keyspan card back in, and the digital camera has to use one of the
on-board ports anyway.

Thanks for any suggestions.


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