I'm going to buy the Noctua NH-D14 because I have been running my FX-6300 on stock speeds and the stock cooler and I want cooler temperatures as well as some overclocking before I purchase a FX-8350 in a few months. I have a Corsair Carbide 200R case, a GTX 760, 8GB G.SKILL Ripjaws X Series DDR3 1600 MHz RAM, and an Asus M5A99X EVO R2.0. I heard that the NH-D15 won't fit in the case without it rumbling against the side, and I've heard differing statements on whether the NH-D14 will fit. I also need to know whether I'll have clearance to add another 8 gigs of the same RAM. I assume my GPU will still fit in the pcie x16 slot. Any help would be appreciated!