what OS you installed and from what kind of media. This is often just a driver issue. The best clue comes from device manager showing yellow exclamation marks for devices found that were not configured due to missing drivers.
After a op system re-installation i no longer have any sound capability. I checked all wiring etc - OK. I accessed control panel - audio devices and sound and all choices were grayed out. Where do I begin to restore the sound capabilities?

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