New
#31
Check the clearance for the RAM slot closest to your CPU.
You might consider getting new fans for your Frio. Look for low noise, high volume and high pressure, the pressure is important for a CPU cooler.
I was looking at freeing up my first RAM slot (blocked by the Coolermaster Hyper 212+ CPU cooler, good cooler but blocked any RAM with a heatsink) so I got a Corsair H80. Great water cooler, very noisy fans when on high. Got Noctua NF P12 (quiet, high volume, high pressure - made for CPU coolers) and they are very quiet.
There are other quiet CPU cooler fans on the market now.
Any of these should work fine.
Top 5 Heatsinks