Pas de son Acer 5680 help :(

Bonjour,
Bonjour, J'ai un portable Acer Aspire 5680, j'ai du reformater en utilisant windows xp pro et depuis je n'est plus de son. Je ne sais pas de ou le probleme vien mais je sais que ce n'est pas une question de mauvais driver audio car sur le site acer tout les drivers compatible au model de mon ordinateur son disponible.

j'ai reformater plusieur fois en utilisant differente copie de windows XP et jai toujour le meme probleme, quand j'installe le driver Audio realtek high defenition ils naparait pas dans gestion des périphérique et dans l'onglet son dans panneau de configuration... je n'est aucun choix d'audio meme si jai installer le driver. Depuis le formatage mon leteur CD ne marche plus d'ailleur comme si il n'etait plus present dans mon ordinateur.

Voici les specification de mon ordinateur.

Computer:
Computer Type ACPI Multiprocessor PC (Mobile)
Operating System Microsoft Windows XP Media Center Edition
OS Service Pack Service Pack 3
Internet Explorer 6.0.2900.5512
DirectX 4.09.00.0904 (DirectX 9.0c)
Computer Name KAITOU
User Name David
Logon Domain KAITOU
Date / Time 2010-10-30 / 23:37

Motherboard:
CPU Type Mobile DualCore Intel Core 2 Duo T7200, 2000 MHz (12 x 167)
Motherboard Name Acer Grapevine
Motherboard Chipset Mobile Intel Calistoga-PM i945PM
System Memory 2048 MB (DDR2-533 DDR2 SDRAM)
DIMM1: Samsung M4 70T2864AZ3-CD5 1 GB DDR2-533 DDR2 SDRAM (5-4-4-11 @ 266 MHz) (4-4-4-11 @ 266 MHz) (3-3-3-8 @ 200 MHz)
DIMM3: Samsung M4 70T2864AZ3-CD5 1 GB DDR2-533 DDR2 SDRAM (5-4-4-11 @ 266 MHz) (4-4-4-11 @ 266 MHz) (3-3-3-8 @ 200 MHz)
BIOS Type Phoenix (08/12/08)

Display:
Video Adapter NVIDIA GeForce Go 7600 (128 MB)
Video Adapter NVIDIA GeForce Go 7600 (128 MB)
3D Accelerator nVIDIA GeForce Go 7600
Monitor Quanta QD15TL072 [15.4" LCD]

Multimedia:
Audio Adapter Intel 82801GBM ICH7-M - High Definition Audio Controller [B-0]

Storage:
IDE Controller Intel® 82801GBM/GHM (ICH7-M Family) Serial ATA Storage Controller - 27C4
Storage Controller ENE PCI Memory Stick Card Reader Controller
Storage Controller ENE PCI Secure Digital / MMC Card Reader Controller
Storage Controller ENE PCI SmartMedia / xD Card Reader Controller
Disk Drive Hitachi HTS541616J9SA00 (160 GB, 5400 RPM, SATA)
Disk Drive Ut163 USB2FlashStorage USB Device (1927 MB, USB)
SMART Hard Disks Status OK

Partitions:
C: (NTFS) 70001 MB (53597 MB free)
D: (NTFS) 82615 MB (72747 MB free)
Total Size 149.0 GB (123.4 GB free)

Input:
Keyboard Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
Mouse HID-compliant mouse
Mouse PS/2 Compatible Mouse

Network:
Primary IP Address 192.168.2.13
Primary MAC Address 00-18-DE-70-45-9A
Network Adapter Intel® PRO/Wireless 3945ABG Network Connection (192.168.2.13)

Peripherals:
FireWire Controller VIA VT6306/6307 Fire II IEEE1394 Host Controller (PHY: VIA VT6307)
Infrared Controller Infrared Port
USB1 Controller Intel 82801GBM ICH7-M - USB Universal Host Controller [B-0]
USB1 Controller Intel 82801GBM ICH7-M - USB Universal Host Controller [B-0]
USB1 Controller Intel 82801GBM ICH7-M - USB Universal Host Controller [B-0]
USB1 Controller Intel 82801GBM ICH7-M - USB Universal Host Controller [B-0]
USB2 Controller Intel 82801GBM ICH7-M - Enhanced USB2 Controller [B-0]
USB Device Acer OrbiCam
USB Device USB Human Interface Device
USB Device USB Mass Storage Device
Battery Microsoft AC Adapter
Battery Microsoft ACPI-Compliant Control Method Battery

DMI:
DMI BIOS Vendor Acer
DMI BIOS Version V3.60
DMI System Manufacturer
DMI System Product Aspire 5680
DMI System Version V3.60
DMI System Serial Number LXAFQ0J0176461DF841601
DMI System UUID DF9B7B04-BFEE227C-5781001B-385C5DBE
DMI Motherboard Manufacturer Acer
DMI Motherboard Product Grapevine
DMI Motherboard Version N/A
DMI Motherboard Serial Number LXAFQ0J0176461DF841601
DMI Chassis Manufacturer Acer
DMI Chassis Version N/A
DMI Chassis Serial Number None
DMI Chassis Asset Tag
DMI Chassis Type Notebook