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Getting OPTi 82C930 card to play nice with Windows 95

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First post, by darkfalzx

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Got an OPTi 82C930 card off ebay. Used archive drivers to try and get it working. The card works great in DOS, but Windows 95 doesn't seem to make heads or tails of it - doesn't detect it as "new hardware", and even if I try adding it manually, the card still doesn't work or even show up under hardware. At this point I have tried installing it using its own drivers, generic Windows Sound drivers, and initializing it on startup in DOS, but nothing brings me any closer to having it work.
Does anyone have experience in getting these cards working or an idea of what I'm doing wrong?

Reply 1 of 5, by stanwebber

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i used an opti 82c930 card for awhile. i had it running under win98se & xp with relative success. as i recall it's non-pnp so windows won't auto-detect it & i had to use nt drivers under xp. other than a disparity in volume between the wave & mpu-401 midi output it was a good card with a yamaha opl3. the file names of the drivers i used were:

opti_82c930_dos_win31_v105.zip
opti930dosy.exe
opti930nty.exe
opti930y.exe

Reply 2 of 5, by darkfalzx

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I tried manually installing the drivers, but Win95 refused to recognize them. I'd point to the drivers installed by the opti_82c930_dos_win31_v105.zip, but would get something like "folder doesn't contain driver for your device".

Reply 4 of 5, by darkfalzx

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Wow! Thank you so much! I can't believe that just straight up worked!
My apologies for wasting everyone's time - I'm a bit "new" to actual DOS hardware, as I haven't had to deal with it since the 90s, and even then it was just a single family PC. A few weeks ago found an immaculate specimen of a Gateway 2000 on my dog-walking route, and been trying to make it into a DOS/W95 gaming machine since: )
I'm sure it's not the last time I bother you, good people about this thing: )

Oh... perhaps someone, by chance, know how to set up Duke Nukem 3D's "16-bit DMA" with this card? I don't think I set it up anywhere in Autoexec, and the game refuses to accept any one of the options it provides.

Reply 5 of 5, by NeoG_

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darkfalzx wrote on 2025-12-10, 23:32:

Oh... perhaps someone, by chance, know how to set up Duke Nukem 3D's "16-bit DMA" with this card? I don't think I set it up anywhere in Autoexec, and the game refuses to accept any one of the options it provides.

The 82C930 is sound blaster compatible with the Sound Blaster Pro 2 profile, which means a maximum of 44Khz, 8-Bit Mono and 22Khz, 8-bit Stereo. It will not work with settings that use SB16 or High DMA.

Duke 3D is a special case, it always asks for a High DMA. Leave it at 5 and make sure the sound card type is set to Sound Blaster Pro and 8-bit mixing is selected - the HDMA is ignored in that case. If there is still no sound, then there is an issue with the address/irq/dma configuration.

98/DOS Rig: BabyAT AladdinV, K6-2+/550, V3 2000, 128MB PC100, 20GB HDD, 128GB SD2IDE, SB Live!, SB16-SCSI, PicoGUS, WP32 McCake, iNFRA CD, ZIP100
XP Rig: Lian Li PC-10 ATX, Gigabyte X38-DQ6, Core2Duo E6850, ATi HD5870, 2GB DDR2, 2TB HDD, X-Fi XtremeGamer

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