To be honest just do the overclock your self. the manufacturer does it to a point they know its still safe but really just download the MSI after burner and move it up slowly and it will automatically control the fan speed too
Use CPI-d to manage the temps for your GPU.
Also very common thing since you have the 560 unlock it to make it a 570 or better :O
Iam working on making my 570 and 580 but the fan sucks on it for me.
Hope this helps!