All audio devices missing using HDMI

September 20, 2011 at 07:19:09
Specs: Windows Vista 32 bit, 4 GB
I've got a home cinema PC that I've hooked up to my TV using a standard HDMI cable. I'm using my onboard audio and it has been working great for almost a year until a few days ago. I decided to upgrade my RAM to 4 GB after which I checked to see if everything was working, it did, no problems.

Then a day later I noticed that every time I start my PC there is no sound! I noticed the red x icon in the task bar and it says there are no audio devices installed whatsoever. I checked my hardware and indeed all my audio devices are gone!

Now comes the really strange part, sometimes when I start the PC I do have sound, my HDMI device is back and working yet whenever I reboot, it's gone again. Now I just can't believe that this has something to do my new RAM but to be honest I'm pretty much at a loss here. I've tried everything from removing/re-installing video card drivers (Nvidia Geforce 8500 GT) to updating my motherboard drivers etc.

Does anyone have an idea on how to fix this?

Thanks in advance to anyone who's willing to help.

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September 20, 2011 at 12:40:52
Try a restore point and see if the symptoms change.

Yes, ram could have done any number of things from being bad ram to moving bad ram into needed areas. Use memory diagnostics.

Also any component or part could have been bumped or damaged in your process. It may have been bad to begin with.

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