LightRO1

thank you for you help, osx sierra is successful installed. My next and last Problem ist the Sound Driver. The Computer not found a soundcard. I think i have not the right sound driver.

That's exactly what I did. Then comes the same error as the pictures at the top.

I have now taken the driver from the Sierra E6420 and the Vodo and HDTA driver from El Capitan NVS. However, this did not bring the desired effect. Can you give me the links, what I need for them, and what about them and where to go?