Sigmatel Driver for Win 7

The Vista driver, on the Dell downloads, should work for Win 7.  I've upgraded several different PC's, a laptop of my own and several client's PC's and the Vista drivers, including sound, worked for all of these.  Win 7 is basically Vista "Improved".

What indication or error are you getting?  Have you tried installing the Dell driver? 

I'm not sure if they're compatible but I'm running Windows 7 on my Inspiron 9300 and her's my info:

R99254 dell windows 7 sigmatel c-major audio driver:

Title      : Audio:SIGMATEL STAC 975X AC97 Driver
Version    : A03
OEM Name   : SIGMATEL
OEM Ver    : 5.10.0.4255
Computers  : Inspiron - 6000, 9300, 9200, 2200, 1200, XPS Gen 2;
Latitude - D610, D810, 110L, D510, D410, X1;
Precision - M20, M70;
XPS - MXG051
Oses       : Windows 2000 Professional, Windows 3.x Pro-SBE, Windows Vista 32-bit Business, Windows Vista 32-bit Home Basic, Windows Vista 32-bit Home PremiumWindows Vista 32-bit UltimateWindows XP Home EditionWindows XP Professional
Languages  : Brazilian Portuguese, Chinese-S, Chinese-T, English, French, German, Japanese, Korean, Spanish
Created    : Tue Jan 23 13:52:44 CST 2007

Normal 0 false false false EN-US ZH-CN X-NONE MicrosoftInternetExplorer4

1. decompresses (email me at  for the new driver )

2. to open your system first, in the window directory entered c:\Windows\system32\Driverstore\FileRepository to find the folder wdmaudio.inf_x86_neutral_aed2a4456700dfde

3. a right click to  obtains the administrator property rights of the folder (wdmaudio.inf_x86_neutral_aed2a4456700dfde)

4. open (wdmaudio.inf_x86_neutral_aed2a4456700dfde) the folder to delete all files.

5. returns to the folder which you just decompressed

6. Copy all 7 files of new driver to folder "wdmaudio.inf_x86_neutral_aed2a4456700dfde"

7. re-installs the sound card

Any question, email me

Good Luck

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