Solved Both Audio Outlets Doesn T Work Anymore Mac Pro First Generation

Chosen Solution

First the outlet on the bach refused to work. after three years the outlet starts humming from time to time. today it ends up with a creak. is it repairable or are there spareparts for it. the mac pro is still working nice. mbo

Here’s how to trouble shoot your MacPro audio problems: http://support.apple.com/kb/ts1574