So I have a mid 2010 Mac Pro. 12 Core, initially 16GB of Ram (Recently upgraded to 24GB of RAM). Starting in January of 2012 my machine running Snow Leopard started to go to sleep and not wake up. This would happen every few days but then would increase in frequency. I scoured the boards for an answer but couldn't find one so I ended up taking teh machine to the local Apple Store. They found nothing wrong with the machine but installed a clean copy of Snow Leopard and that seemed to help for a while. The problem persisted. I would reset PRAM and try different approaches in boards on line including repariing permissoins etc. Nothing worked for long. Desperate I tried upgrading to Lion but the problem persisted. I took the machine back to the apple store (same location) and they suggested that carbonite was causing the problem. I did a fresh install of Mountain lion this time, and then slowly added applications back one at a time to see if the problem was truly application based. I never re installed carbonite. I don't believe the problem is application based because I have a 2010 Mac Pro that has the identical software setup ( I freelance and when I work off site I use the laptop) and have never had an issue with any kernel panics. Additionally I have a 2008 Mac pro with the exact same setup and no issues there either. Before long the problem re-appeared but now with Lion and Mountain lion the machine restarts and I get a message that the machine was forced to re-start after an issue. I called Apple support and got a very nice guy name Sean Thorpe who promised to help me. I sent them crash logs, he sent me some applications to install or checks to run so that he could send my crash logs to the engineering department to debug. Nothing. no one has solved this problem. Fed up I demanded a new machine. I have apple care so I am covered but they refused. Sean then suggested that I remove all of my drives and then partition the boot drive and install a clean copy of Mountain lion and see if the problem continues. I did that. Within 24 hours the machine crashed again. It was running off the partition and I didn't install a single application. I don't know that much but the problem has to be hardware. It two visits to the apple store and a detailed study of crash logs by apple's engineers can't figure it out I figure that I just got a lemon. I am fed up. I spent a lot of money on this machine and it isn't dependenable. I have owned at least four other macs and have loved every one of them and every one has been a great machine.
I am at my whit's end and considering trying something desparate like trying to contact someone who runs customer service or Tim Cook himself. I don't have any idea how I can get that contact information nor do I actually think it will get me anywhere so I am turning to this community for one last attempt to solve what ever is going on with my machine