Changed CPU to an i5 (4 cores but each core is far more powerful). The i5 4460 is locked so it cannot be overclocked.
Changed PSU to a XFX 550w. Corsair CX/VS/CSM/RM series all use cheap capacitors (cx series is the worst of the lot), I don't really recommend them. Only good corsairs are the HX/TX/AX series but they are all overpriced.