• Realtek* ALC Audio Driver
• Ver:5964
• Date:11/2/2009
• OS:Windows 7, 32-bit*, Windows 7, 64-bit*, Windows Vista 32*, Windows Vista 64*, Windows XP Home Edition*, Windows XP Media Center Edition*, Windows XP Professional x64 Edition*, Windows XP Professional*

This download Supports following Intel Motherboards

• Intel® Desktop Board D945GCLF
• Intel® Desktop Board D101GGC
• Intel® Desktop Board D102GGC2
• Intel® Desktop Board D410PT
• Intel® Desktop Board D510MO
• Intel® Desktop Board D945GCCR
• Intel® Desktop Board D945GCLF
• Intel® Desktop Board D945GCLF2
• Intel® Desktop Board D945GCNL
• Intel® Desktop Board D945GCPE
• Intel® Desktop Board D945GRW
• Intel® Desktop Board D945GSEJT
• Intel® Desktop Board D945PDK
• Intel® Desktop Board DB43LD
• Intel® Desktop Board DG31GL
• Intel® Desktop Board DG31PR
• Intel® Desktop Board DG33BU
• Intel® Desktop Board DG33FB
• Intel® Desktop Board DG35EC
• Intel® Desktop Board DG41KR
• Intel® Desktop Board DG41MJ
• Intel® Desktop Board DG41RQ
• Intel® Desktop Board DG41TY
• Intel® Desktop Board DG43GT
• Intel® Desktop Board DG43NB
• Intel® Desktop Board DG43RK
• Intel® Desktop Board DH55HC
• Intel® Desktop Board DH55TC
• Intel® Desktop Board DH57JG
• Intel® Desktop Board DP43TF
• Intel® Desktop Board DP55KG
• Intel® Desktop Board DP55SB
• Intel® Desktop Board DP55WB
• Intel® Desktop Board DP55WG
• Intel® Desktop Board DQ33HS
• Intel® Desktop Board DQ35JO
• Intel® Desktop Board DQ35MP
• Intel® Desktop Board DQ43AP
• Intel® Desktop Board DQ57TM
• Intel® Desktop Board DX58SO

You can download windows 7 driver from here.

Note: Audio drivers may fail to install in Windows* XP 64-Bit Edition. Symptoms may include error messages, such as “Error in installation” or “Unknown error”. Microsoft’s Update for Windows XP x64 Edition (KB901105) fixes this issue. After installing this update, the audio drivers for Windows XP 64-Bit Edition will successfully install.

Windows 7 Drivers | Windows Vista Drivers | Windows XP Drivers