I gave a try to my integrated sound card. I have installed dos drivers from the CD provided with my mainboard (Soltek 75KAV) based on VIA KT133A chipset.

(I have got Duron 1400.)

My manual says:
"SOUND CONTROLLER:
SoundBlaster Pro Hardware and Direct Sound Ready AC97 Digital Audio Controller with Codec onboard."

My AWARD BIOS has some options for sound blaster legacy support. I can set address, IRQ and DMA.

Well, it works as if i had a real ISA Sound Blaster compatible card. It works with every game.

I have downloaded a few manuals for other Soltek mainboards and find out that VIA KT266 chipsets have such a legacy sound blaster support too.

Does anyone know about any other (newer) chipset for AMD processors having such a feature?