Almoststew1990 wrote on 2022-06-27, 11:28:

I can't actually get it to work. Both the s7 system and my usual Slot 1 system do not detect the card during post or in Windows. Can you notice anything broken or missing on it?

That's a non-PnP card, so it's normal that Windows doesn't detect it automatically. You need to install the driver manually via Control Panel > Add New Hardware > Have Disk.

Try searching for a generic OPTi 82C928 driver. It will probably work fine.

There is a superb driver for DOS for the 929: https://github.com/JKnipperts/OPTi82c929_Driver

However I guess it won't work with the 928... So maybe try the attached one.

Here's my notes on an Opti 928 chipset card:

This card wouldn't work properly under Windows 98 (seems it only had 3.1 drivers) and I couldn't get stereo sound to work under DOS. Worst of all, its gameport isn't MPU-401 compatible. I screwed up and bought the wrong card, apparently the Opti 929 is a fine chipset and Sound Blaster Pro 2/MPU-401 compatible, the 928 is not. It's more similar to an original Sound Blaster 2.0.

Did the S7 system have Windows 95 or 98 on it? If so, I guess they somehow got the card to work there.

Thanks everyone I got it working with these 928 drivers. It sounds pretty good with it's YMF262F chip and unsurprisingly has SB16 support. I might get a Wavetable for it too. It also has a speaker out which I assume is unamplified so it isn't noisy.

Hm, there is a TDA1517 amp... so not sure about that "unamplified" part! 😁 Or are you talking about the line out?

Almoststew1990 wrote on 2022-07-01, 12:16:

Thanks everyone I got it working with these 928 drivers. It sounds pretty good with it's YMF262F chip and unsurprisingly has SB16 support. I might get a Wavetable for it too. It also has a speaker out which I assume is unamplified so it isn't noisy.

Speaker out is always amplified, you are confusing it with line out I guess

Whoops yes wrong way around!

Also there's no way it supports SB16, you mean SB Pro?

Oetker wrote on 2022-07-01, 12:53:

Also there's no way it supports SB16, you mean SB Pro?

He probably picked SB16 in the game and the card is working in Mono without him realizing..

Yeah it's mono 🙁

Almoststew1990 wrote on 2022-07-01, 13:42:

Yeah it's mono 🙁

Because your card is not SB16 compatible, just pick SB Pro instead.

Almoststew1990 wrote on 2022-07-01, 13:42:

Yeah it's mono 🙁

OPTi cards don't have SB16 compatibility. They support SB, SBPro, and Microsoft Windows Sound System (WSS). To get the cleanest sound in later DOS games select WSS in a game's setup whenever that option is available. It sounds counterintuitive, but WSS works perfectly fine in DOS games which support it:

That said, you may need to set your card to WSS mode through the drivers before using it in that manner. I have an OPTi 82C930 which is a bit newer and the driver utility (SNDINIT.EXE) looks like this:

Since your card is older, the interface might be a bit different.