I'll be putting my old hardware in a case I bought off ebay called the AeroCool QX-2000 unfortunately it being a dual chamber case space is limited, when I take a tape measure I have exactly 4.5" 120mm> of headroom for a cooler, however a guide said I can at least put a cooler 140mm in height in there, this wouldn't be a problem except it will be a i7 980x (tdp 130w) and low profile coolers are known to be insufficient, I've tried the cnps8900 quiet but it idles at 50C, the Noctua NH-L12 looks promising but how will it handle a 6 core i7? What is the absolute best low profile cooler out there? I'm leaning towards the NH-U9B SE2.