Hey all, just got the IS-47K installed into my SM560 using an ASUS ROG Strix B550-i board and a Ryzen 5600X. I replaced my Asetek 645LT with this since 1. with a giant graphics card I was struggling to fit it around the tubes and 2. the graphics card exhaust dumping into the radiator made the cooling seemingly much less efficient.
Using suggestions from this thread, the cooler is mounted with the Noctua bracket for better pressure, and the fan is swapped out with an NF-A9-14 flipped as intake, and is using NT-H2 paste. Two case fans are exhausting at the bottom of the SM560.
This is the 5600X with manual PBO at +100, stock voltages, and a PPT of 120W (boosts to 4750MHz). Running at about 4150MHz effective clocks it settles at about a 105W PPT and ~82C with the cooler fan running at about 70%. I've found this to be a lot better than the 645LT which would go up towards 90C with the same overclocking. Idle temps are 51C at 21C ambient.