I installed a new modem, and plugged in the line-in phone wire and a telephone handset. If you pick up the handset there is a loud annoying humming noise. This happens whether the computer is on or off.
I tried it in two different PCI slots with the same results. I installed the drivers and still the same.
I tried the same modem in a different computer. It works fine.
it almost sounds like the polarity of your wall outlet is wrong. But this is a problem from many years ago. do you get a hum of anykind out of your computer speakers?
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