Pb son sur carte mere Intel

Bonjour,
Apres avoir change le DD impossible d'installer le bon driver pour la carte son integree a la carte mere: sur le rapport d'Everest carte son et carte graphique semblent avoir la meme ref:
Computer:
Computer Type ACPI Multiprocessor PC
Operating System Microsoft Windows XP Professional
OS Service Pack [ TRIAL VERSION ]
Internet Explorer 7.0.5730.13 (IE 7.0)
DirectX 4.09.00.0904 (DirectX 9.0c)
Computer Name BURAK (STOCK)
User Name Administrator
Logon Domain [ TRIAL VERSION ]
Date / Time 2009-03-03 / 16:26

Motherboard:
CPU Type DualCore Intel Core 2 Duo E4600, 2400 MHz (12 x 200)
Motherboard Name Asus P5LD2-X/GBL (3 PCI, 2 PCI-E x1, 1 PCI-E x16, 2 DDR2 DIMM, Audio, Gigabit LAN)
Motherboard Chipset Intel Lakeport-G i945GC
System Memory [ TRIAL VERSION ]
BIOS Type AMI (10/07/08)
Communication Port Communications Port (COM1)
Communication Port ECP Printer Port (LPT1)

Display:
Video Adapter ASUS EAH2600 Series (1024 MB)
Video Adapter ASUS EAH2600 Series (1024 MB)
3D Accelerator ATI Radeon HD 2600 Pro (RV630)
Monitor Plug and Play Monitor [NoDB] (HMDQ313588)

Multimedia:
Audio Adapter ATI Radeon HDMI @ ATI Radeon HD 2600 - High Definition Audio Controller
Audio Adapter Realtek ALC662 @ Intel 82801GB ICH7 - High Definition Audio Controller [A-1]
QQ'un a t'il une solution ou bien le prob a deja ete traite?

MERCI d'avance