Pulled an OPL3 off a OPTi soundcard, not sure of the model#. The OPTi chip is marked 82C924. The FCC sticker has a model # MF-009, FCC ID J98MF-009.
The DAC on the card is not an YAC512; this card has an LS512 which I think is a Philips chip. Does anyone have an info on this DAC, no love from Google. It appears to have the same footprint as the YAC, so I think it may be a drop-in replacement but I’m just guessing. I’m going to try it on my MB OPL3 brd along with a YAC.