the cx series isn't really a very good series of power supplies but, you can go online and search 760 overclock guide and see roughly what you can reach. I would use either msi afterburner or evga precisionX for the overclocking. Note that all the silicon is different so make sure you monitor your temps. Blue screen could mean either its overheating (to much voltage) or not enough power (not enough voltage) so when you start your overclock make sure to test it. You can run benchmarks or games like gta v and try to stress your hardware just make sure to not push your hardware to much.