I just tried it with the on-chip sound enabled. I can still get the SB to work.
(though the built in chip still doesn't work, even with ALSA, but I don't really care)

In modconf, I just had to go into modconf. under kernel/sound/oss/emu10k1 add emu10k1

I think there are probably other ways of achieving the same effect, but i've got no idea.