Sound Card Is Not Detected If Network Card Uses Same Address

• Microsoft Windows 95

SYMPTOMS

If you upgrade from Windows version 3.1 or Windows For Workgroups version 3.11 to Windows 95 and have the Media Vision Windows 3.1 sound card drivers installed, Setup may display a message during hardware detection that it is receiving no response from one of the hardware components it is looking for. In Windows 95, neither the Setup program nor the Add New Hardware program detects the Media Vision MV-1100 Blue Light Special sound card when a DEC DE201 Etherworks Turbo/TP network card is also installed on the computer.

CAUSE

Both the network card and the sound card are configured to use the same address. When Windows 95 hardware detection writes to a particular address that is being used by a sound card, the network card's response hides the sound card's response, causing a conflict.

RESOLUTION

Reconfigure the network card to use a different address, and then have Windows detect the hardware again using the Add New Hardware program.

MORE INFORMATION

The DEC DE201 Etherworks Turbo/TP network card uses Input/Output address ranges 200h-20Fh. The Media Vision MV-1100 Blue Light Special sound card also use this range. The same problem may occur with computers that have both a network card and a sound card that use overlapping addresses.

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