Dell Optiplex has sound outlets, but says no sound installed, fix?

Question

the plugs are on the motherboard, but it's not recognizing its capabilities

Answer 1

Without knowing the model number, I can't be sure, but I'm willing to bet it has built-in sound on the motherboard.

You should be able to get the driver by entering the service tag at:

http://support.dell.com/support/downloads/index.aspx?c=us&l=en&s=gen

Hope that helps!
Stu...