Hi,
I had the same problem with my R3. In six months changed motherboard (2), GPU (3), display (1), fans (1), sink (2). However, the changes did not solve the problem .... it was frustrating because I had new problems. Every time the technician came had a new problem.
Call support (4 times) to ask for the solution to my problems and the answer "we are studying your problem" ... two weeks later the answer was always the same.
It was very frustrating, so as a final option wrote an email to Michael Dell (
[email protected]) explaining in detail my problem. The next day I received a call from the department scaled cases. I wonder what was the problem and the solution that I like. I explained all the problems and that I wanted more repairs or replacements of parts .... I asked directly by the replacement of a new computer.
Within 24 hours approved the replacing my R3, coming soon my new R4.