I have a Cooler Master Case with a 550 wat psu, Asus Sabertooth 990FX MB Amd 9590 CPU a cheap radeon R5 220 XFX 16GB KINGSTON HYPEREX RAM kINGSTON SSD 120GB AND A HITACHI 2tb 64/7200 HDD. My cooler is a corsair Hi80 Rieght now, I have it clocked just over 4700 and it is stable. I had to mess around with the settings just to get it to this point and, I thought that my proble was over heating but, it was the memory timing and voltage that was causing the crashes. It will run hot if I try to push it over 5ghz and will freeze up, if I can even get it to boot. I'm wondering if I need a better psu? Most builds I've seen have at least 750 watts and some are even up to 1250 watts, My temps seem normal and when I have crashed, most of the time it was pretty cooll. I am not so much interested in over clocking my system but I do want to maintain the ideal setting with solid stability. If anyone has a similar setup and has had success then please, by all means tell me what I can do to make my system the best it can be. Thank you