DataExpert MED3931 VER:2.0
Logs
typeType
Sound
interfaceInterface
signalSignaling
16-bit ISA
dimSlot height
1
datePCI ID
Empty
chip Chips and specs
-> Audio
OPTi 82C931 (OPTIFM) STMicroelectronics / Inmos TEA2025 (Audio Amplifier)
MTL
Chip Set Opti
Data Bus 16-bit ISA
Card Size Half-length, half-height card
Card Type Sound card
I/O Options Speaker out (2), line in (2), microphone in (2), game port,Audio in - CD-ROM (2), unidentified connector, wavetable connector
portintI/O ports
2x 
  • 3.5mm TRS jack
1x 
  • 3.5mm TRS jack
1x 
  • DA-15
powerPower connectors
Empty
notes Notes

The 4052 chip is responsible for switching the output to a filtered mono mode through GPIO0. Sometimes this chip fails, the two SMT resistors (R31 and R32) can be populated with 0 ohms to bypass it.

Last updated 2025-11-29T05:09:24Z
biosc No BIOS files available
drv No drivers available
doc 1 card document available
Release date
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File
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Chip
Release date
1997-08-01
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Chip
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2012-10-01
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2014
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image3 Image 3 of 6 (Virtual Computer Antiques)
image4 Image 4 of 6 (davidg)
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image6 Image 6 of 6 (davidg)

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