CB1878 4 I originally had it on an overclocked ryzen 3100, and it did well. A bit noisy, but you can't win em all. Apparently a lot of users have issues with the pump running itself at 10,000rpm's, so be sure to check it after you install, you should be setting the pump to run at 2800~3200 rpm's. I am still using it, but I've replaced the original fans with a high grade of fan, and I it runs about 6C cooler than stock. The lighting is nice.