This is my Linux info for ASUS M2N-E audio device:

21: PCI 06.1: 0403 Audio device
[Created at pci.301]
UDI: /org/freedesktop/Hal/devices/pci_10de_371
Unique ID: 9LTX.vLXC8EvZgR7
SysFS ID: /devices/pci0000:00/0000:00:06.1
SysFS BusID: 0000:00:06.1
Hardware Class: sound
Model: "ASUSTeK MCP55 High Definition Audio"
Vendor: pci 0x10de "nVidia Corporation"
Device: pci 0x0371 "MCP55 High Definition Audio"
SubVendor: pci 0x1043 "ASUSTeK Computer Inc."
SubDevice: pci 0x81f6
Revision: 0xa2
Driver: "HDA Intel"
Driver Modules: "snd_hda_intel"
Memory Range: 0xfe024000-0xfe027fff (rw,non-prefetchable)
IRQ: 18 (3409406 events)
Module Alias: "pci:v000010DEd00000371sv00001043sd000081F6bc04sc0 3i00"
Driver Info #0:
Driver Status: snd_hda_intel is active
Driver Activation Cmd: "modprobe snd_hda_intel"
Config Status: cfg=no, avail=yes, need=no, active=unknown

and ethernet controller:

22: PCI 08.0: 0200 Ethernet controller
[Created at pci.301]
UDI: /org/freedesktop/Hal/devices/pci_10de_373
Unique ID: rBUF.Y5mXWaT8m_A
SysFS ID: /devices/pci0000:00/0000:00:08.0
SysFS BusID: 0000:00:08.0
Hardware Class: network
Model: "ASUSTeK MCP55 Ethernet"
Vendor: pci 0x10de "nVidia Corporation"
Device: pci 0x0373 "MCP55 Ethernet"
SubVendor: pci 0x1043 "ASUSTeK Computer Inc."
SubDevice: pci 0x8239
Revision: 0xa2
Driver: "forcedeth"
Driver Modules: "forcedeth"
Device File: eth0
Memory Range: 0xfe02a000-0xfe02afff (rw,non-prefetchable)
I/O Ports: 0xb000-0xb007 (rw)
Memory Range: 0xfe029000-0xfe0290ff (rw,non-prefetchable)
Memory Range: 0xfe028000-0xfe02800f (rw,non-prefetchable)
IRQ: 17 (no events)
HW Address: 00:17:31:8b:d9:f4
Link detected: yes
Module Alias: "pci:v000010DEd00000373sv00001043sd00008239bc06sc8 0i00"
Driver Info #0:
Driver Status: forcedeth is active
Driver Activation Cmd: "modprobe forcedeth"
Config Status: cfg=no, avail=yes, need=no, active=unknown

i have another LAN card and my network connectivity isn't a problem right now, but i really need sound. How to fix this problem with this audio device in Leopard 10.5.2 ?