Hello please . Can anybody help me? e bought an E5-2690v2 for my mac pro 6.1 all the perfect change but when it takes a long time of stress working with 4k it shuts down and throws me an error. I do not know what to do I'm desperate I bought it instead of the 2697 for the many comments and for the money I had available now I'm very disappointed I can not find a solution and changed the processor 4 times to discard more components but with the serial 1620 there are no errors but it is much slower please help me :) sorry my english use translator I only speak spanish. thanks greetings