PCI/internal sound card not detected

Ubuntu 12.04 LTS

Sound card work until update August, 24.
After the update and restart the sound card is not working anymore.
No sound card listed in System settings "Audio" (only dummy output)

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.25+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-29.46-generic-pae 3.2.24
Uname: Linux 3.2.0-29-generic-pae i686
AlsaDevices:
 total 0
 crw-rw---T 1 root audio 116, 1 Aug 24 19:54 seq
 crw-rw---T 1 root audio 116, 33 Aug 24 19:54 timer
AplayDevices: aplay: device_list:252: no soundcards found...
ApportVersion: 2.0.1-0ubuntu12
Architecture: i386
ArecordDevices: arecord: device_list:252: no soundcards found...
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
Date: Fri Aug 24 20:45:54 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Title: PCI/internal sound card not detected
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/20/2006
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: 6.00 PG
dmi.board.name: MS-7181
dmi.board.vendor: MICRO-STAR INTERNATIONAL CO., LTD
dmi.board.version: 2.0
dmi.chassis.type: 3
dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd01/20/2006:svnMICRO-STARINTERNATIONALCO.,LTD:pnMS-7181:pvr2.0:rvnMICRO-STARINTERNATIONALCO.,LTD:rnMS-7181:rvr2.0:cvn:ct3:cvr:
dmi.product.name: MS-7181
dmi.product.version: 2.0
dmi.sys.vendor: MICRO-STAR INTERNATIONAL CO., LTD