Did you overclock? That would explain the temperatures. Depending on your setup Arctic Liquid Freezer 240 is a good choice, however for that budget I recommend a large air cooler: Noctua NH-D15/D14 (best performance which matches an AIO)- but much more quiet; or If you don't like the look of the fans, get a beQuiet Dark Rock Pro 3 (very quiet-like the Noctua; performance like 2C worse than the Noctua, and beautiful to look at). P.S. I have a beQuiet Dark Rock Pro 3 so I am speaking from experience.