Audio has no IRQ (the white box)

Hi

Can someone help with audio on OpenBrick?

First I tried just sndconfig but it end up saying that I need to set 
PNP in the BIOS to 'no', which it already is.

At http://externe.net/leaf-bering/ it says it should be a 
SoundBlaster16 compatible, then I tried:
  modprobe sb io=0x220 irq=5 dma=1 dma16=5 mpu_io=0x330
but here the system hangs (reboot?).
The parameters is what is specified in BIOS.

During boot from BIOS (before bootloader) I got:
 Vend Dev  Clas Device Class       IRQ
 1078 0103 0401 Multimedia Device   NA
Why is there no IRQ assigned to multimedia? It says 'NA'.

When booted, I tried a:
  cat /proc/pci
...
  Bus  0, device  18, function  3:
    Multimedia audio controller: Cyrix Corporation 5530 Audio [Kahlua] (rev 0).
      Non-prefetchable 32 bit memory at 0x40011000 [0x4001107f].
...
It looks wrong to me. There should be a IRQ for multimedia here.

According to the manual it should be an ac97 audio-chip. I tried that 
also with no luck.

My IRQ list now,  cat /proc/interrupts
           CPU0
  0:      98242          XT-PIC  timer
  1:          2          XT-PIC  keyboard
  2:          0          XT-PIC  cascade
  8:          1          XT-PIC  rtc
 10:       2378          XT-PIC  eth0
 11:         40          XT-PIC  usb-ohci
 14:      26146          XT-PIC  ide0
NMI:          0
LOC:          0
ERR:          0
MIS:          0

Is the audio suppose to work with no IRQ?
How is your setup?

best regards/hans
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