Power supply is big enough. (or at least I think it is) But it still crashes. I have many power hungry parts, GTX970, V8 CPU cooler and fans with LEDs. All were accounted for. By crash I mean locks up, freezes during games and displays windows error message and says I need to restart. I have it overclocked to 4.4 when its standard is 3.5. I tried under clocking it and Re-seating the ram and it still crashed. any ideas? I feel like my Power Supply is to small. I have a 550 watt. But pc part picker says it is enough by about 60 to 100 watts. Parts on computer to consider: CPU is Intel Core i5-4690K Devil's Canyon Quad-Core 3.5GHz. Mother Board is MAXIMUS VII FORMULA. Power supply is Antec Earthwatts 550 watt 80 Plus Bronze Power Supply. GPU is Twin frozr MSI GTX 970