Missing Realtek HD Audio device in XP after BIOS update

I have a PC with a Gigabyte EP43-UD3L motherboard with RealTek HD audio on board.  I recently updated the BIOS to the F9 version (latest) and now the RealTek device is not functioning.

I look at the device manager and there is no RealTek audio device.  I've tried forcing an install with "Add hardward" and installing the device driver.  I get a "Error 10 - device could not start".   When I boot, I see a "multimedia device" listed.  The Bio has the audio device set to "Auto".

Any help appreciated!
wefalkAsked:
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jrobillardConnect With a Mentor Commented:
-Disable the  Sound into the Bios then Save&exit
-Boot in windows
-After a complete load, reboot into the bios and Enable the sound then Save&Exit.
-Boot in windows

I had similar issue with a intel board
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grogmanCommented:
Possibly a BIOS setting that has somehow accidentally disabled the device or changed a port setting so that your system no longer sees the device. Not familiar enough with this particular BIOS, but try checking all of the built-in device options settings, see if there is anything that could be related to this.
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willcompCommented:
Clear CMOS to force BIOS to re-enumerate devices and refresh ESCD.
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Paul SmartSenior Support EngineerCommented:
If none of the above solutions work i would suggest re flashing the bios to a previous version. But the above fix'es by the other experts have covered every possibility.
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AntonInfCommented:
I know this may be a silyl answer to give... but have you Windows XP SP3 installed as I know previous support packs do not work correctly with sound
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wefalkAuthor Commented:
Worked like a charm.  Thanks to all who made suggestions. They may have worked, but this worked as well...
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