Parallella Problems – Initial Investigations

In my last two posts Building a Parallella Mini-Cluster[1] and Bringing Up a Parallella Mini-Cluster – Trials and Tribulations[2] I described constructing a small cluster of 4 Parallella boards[3] into a case with power and cooling and initial steps at getting the cluster up and running. I finished at the point where I knew of the following problems: One board has serious problems when using the Epiphany III chip[4] tending to lock up the whole system or at least the network (as I am connecting over ssh locking up or crashing the network looked the same as locking up the whole system).