Cure for the infinite pinwheel

My Problem

Pinwheel showed up every minute, started for 30 seconds and made it impossible to get anything done. Seems to be a common problem in 13" mid 2012 MacBook Pros. I tried nearly everything else including reformatting and running back my os to mavericks but nothing worked until I replaced the hd cable.

My Fix

Super easy

My Advice

If you have a mid 2012 MacBook with a pinwheel problem try this first.