Not relevant. All stress testing does is run a set of vectors, the vectors may run fine and you have created noise at some other point in the system. It may be running a particular set of instructions fine and another set maybe not even under high load causes it to fall on its face. It's why some people can run Prime95 for 24 hours straight and then the system bombs playing a game or some other stress test. You could be putting noise on a bus that is only present under certain load conditions...a test is just a test, it does not mean you are problem free.