Is it possible to replace one of the 120mm fans with smaller ones on this cpu cooler? The size of them prevents access to one of the PCI-Express RAM slots on my Asus P8P67 Deluxe mobo. I just need about a 1/4 " to squeeze in that last RAM module. I'm using Corsair Vengence sticks, and they have a high cooling ridge. I removed one CPU fan, and it runs in the high-30s to mid-40s when I'm gaming (about 10-15 degrees hotter with two CPU fans attached). I'm using a Core i5-2500K OC'd to 4.0GHz.