Thermalright say on their website, http://www.thermalright.com/, that it is compatible with nf4 chipsets, but that on some it may interfere with the graphics card. You might try emailing their tech support, or checking these dimensions from their site:
L29 x W48.5 x H41 (mm) Fin only, without fan
W41.5 x H40 (mm) heat sink base
I can tell you for sure that it is a great cooler with a good fan.