I think your problem lies in the memory. G.Skill says "Unfortunately not all AMD CPU/motherboards will be capable of DDR3-1600 CL7. This is why the memory is for Intel platforms, but as you know, as long as it is set to CL8, it will work just fine as well".
Unfortunately not all AMD systems are capable DDR3-1600 CL7, which may be the problem you are having. Some have found stability manually setting timings to 8-8-8-24, 1.4v Apparently, this is a wide spread thing with AMD boards.
Jakeman97