> I want to use a soundblaster audigy like card (the one in the old geezer is
> 32 bit pci), I need one that will fit a modern slot.
Creative still produces sound blasters:

https://us.creative.com/p/sound-blaster/sound-blaster-audigy-fx

Though nowadays the internal sound cards have mostly disappeared. Onboard audio on modern 
motherboards is of very high quality, and people needing professional-level audio quality tend to 
go for external sound cards (for reasons I never managed to figure out).

Janek