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Problem with sound on Asus laptop

Dustin23
Dustin23 used Ask the Experts™
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I am having trouble with the onboard sound on my Asus G60VX laptop.  It just went out one day and regardless of what I do, I can't seem to get it back.  I have uninstalled the driver and rebooted the machine twice.  Each time, Windows 7 recognizes the missing driver and installs it automatically.  This did not fix the issue, so I went out to Asus' site and found two different drivers for the G60VX model.  I tried each one of them separately, to no avail.  The headphone jack works just fine, and what is strange is that when the machine boots (right after POST) there is a graphic that shows up pertaining to the Republic of Gamers line of laptops from Asus.  There is a sound that plays with this graphic, which is somehow not affected by the audio problem.  So it seems the issue must be confined to Windows itself.  Can anyone provide some insight into this?  What should I try next?  Thanks in advance for any help!!
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Top Expert 2013
Commented:
See if  my sound procedure checklist helps :
-check if the device is enabled in the bios
-in device manager, check if the card is installed without errors
-look if there are driver updates available, and install them
-if needed, install / uninstall the  UAA HD Audio Bus driver    http://support.microsoft.com/kb/888111
-start>run>services.msc  and check if the Windows Audio service started and set to automatic?
        then, from Device Manager>view   click "show hidden devices" , now  right click your sound devices, and select Uninstall.
        Reboot, and cancel the wizard to reinstall
        Install your latest drivers, and reboot to complete the install......
-in the audio and sound applet>audio tab check if the sound card is selected
-in the volume section, check if the sound is turned up enough, and NOT muted
-in the audio and sound applet>sounds tab select the start windows sound, and check if you can play it
-check if the speakers are connected to the proper sound output (green)
-test the speakers on another PC
Top Expert 2012

Commented:
Boot the laptop with a Knoppix CD to see if the hardware is working.  If it doesn't work on Knoppix, the hardware is probably broken.
Top Expert 2013

Commented:
>>  There is a sound that plays with this graphic  <<   this looks like it is working
Top Expert 2012

Commented:
It's a feature I haven't heard of before, so I wanted to make sure.
Top Expert 2013

Commented:
Top Expert 2012

Commented:
I guess I'm a little behind on this - is it only a feature of Republic of Gamers models?
Top Expert 2013

Commented:
in any case, it looks like it is a sound wave played during post
dustin, are you using external speakers?  if not test with one also
and does that POST sound come from the speakers, or from the external ones?