Hi, I recently helped someone plan a Ryzen build with the r7 1700 and msi b350 tomahawk but they are having problems mounting the stock cooler. I haven't tried the new am4 coolers so I am of little help but I was wondering if anyone out there could give me a run down of how it goes on that board so I could pass the tips along. He says that what ever "rectangular" piece came on the board and he took it off and mounted it to the holes.