Hardware secrets reviewed that cooler and made a note about the fact that it covered all of their memory slots. It should work with standard size ram like that HyperX, but would not work with ram like the Ripjaws series which has the heatsink fins above the memory http://www.hardwaresecrets.com/article/Phanteks-PH-TC14PE-CPU-Cooler-Review/1615/4
Make sure the fan on the cooler is on the left or rear side when inserting into the case. The memory is okay with the heatsink, but you may notice that the first stick may be right up against the cooler. This wouldn't be okay.