The ISA slots are not available on newer motherboards... the PCI SB16 is still available and works fine... I use the AC97 soundchip on my MB for Windows/game audio, and the SB16 for the radio work. Only problem so far is my DX4WIN doesn't let me select the SB16 card... to be fixed in next version (I hope)... could solve it by making the SB16 the default...