Thank you very much for the replies, I appreciate it. I have much to learn. I never considered a Noctua cooler, or fans, because of pure vanity on my part. I hated the ugly brown color of the fans, and truth be told, I still do, but as far as what I've been able to find out, if they're not the best, they are very close. Performance, I've learned, is all about keeping temps as low as possible, and Noctua comes through in spades. I did a 3hr+ 4K render from PP, and with the Noctua cooler, my CPU temps never broke 60C. I'm absolutely impressed. I've come to realize that the reason my temps stayed around 68C when the Enermax TR4 was new, is because 68C is where in auto settings, the pc automatically ramps down the voltage of the CPU down as far as it takes, to keep temps from going above 68C.