I am going to build a new rig pretty soon and plan on overclocking. For my i7-4770k, I've heard that the highest safe temperature the CPU should be around is 70 degrees Celsius, but what should the max temperatures be for overclocking my 16 GB DDR3 1600mhz RAM and AMD Radeon R9 280X GPU (basically a re-branded 7970 ghz edition)?