i810: NVIDIA nForce Audio found at IO 0xd200 and 0xd000, MEM 0x0000 and 0x0000, IRQ 6
i810_audio: Audio Controller supports 6 channels.
i810_audio: Defaulting to base 2 channel mode.
i810_audio: Resetting connection 0
ac97_codec: AC97  codec, id:  (Unknown)
i810_audio: only 48Khz playback available.
i810_audio: AC'97 codec 0 Unable to map surround DAC's (or DAC's not present), total channels = 2