lutz79 wrote on 2023-11-20, 16:48:

Hello! In my 486dx4-100 I installed a Vibra16 ISA card. From that moment on, the internal PC Speaker no longer works. The beep w […]
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Hello!
In my 486dx4-100 I installed a Vibra16 ISA card.
From that moment on, the internal PC Speaker no longer works. The beep when turning on the computer works, but then doesn't sound during games that require the internal PC Speaker. For example Microprose Soccer has no sound.
I noticed that the Vibra16 has an internal 2-pin speaker connector. Do I need to connect a speaker to that connector? Or can I exclude that connector in order to use the one on the computer?

Thank you all

This connector is ment for input.
The internal speaker signal from the mainboard goes into this connector and out of the speakers connected to the soundcard.

DerBaum wrote on 2023-11-20, 17:12:

lutz79 wrote on 2023-11-20, 16:48:

Hello! In my 486dx4-100 I installed a Vibra16 ISA card. From that moment on, the internal PC Speaker no longer works. The beep w […]
Show full quote

Hello!
In my 486dx4-100 I installed a Vibra16 ISA card.
From that moment on, the internal PC Speaker no longer works. The beep when turning on the computer works, but then doesn't sound during games that require the internal PC Speaker. For example Microprose Soccer has no sound.
I noticed that the Vibra16 has an internal 2-pin speaker connector. Do I need to connect a speaker to that connector? Or can I exclude that connector in order to use the one on the computer?

Thank you all

This connector is ment for input.
The internal speaker signal from the mainboard goes into this connector and out of the speakers connected to the soundcard.

Thanks for the reply.
The connector on the motherboard has 4 pins (the central ones, I think, are "ground"), while the connector on the sound card has 2 pins.
Is it sufficient to connect the 2 external pins on the motherboard with the 2 pins on the sound card?