Just moved from a NH-D14 over to a custom loop, EK Coolstream PE 360 rad, with Noctua NF-F12 industrial (3000rpm) fans, D5 pwm pump, EK velocity CPU block, in a Define R6. Ryzen 2700 @3.8ghz 1.325v. Ambient temp 24c Idle CPU temp 33c, rad fans 600rpm, pump 4750rpm (pwm 100%) Prime95 (Small FFTs), Max CPU temp, 66c, rad fans 2000rpm, pump 4750rpm (pwm 100%) With the NH-D14 max CPU temp was 76c, I was expecting better out of this loop, have double checked the CPU mounting, heatsink paste (hydronaut) looks fine. Run it for a few hours, pretty sure I've got all the air out. Any ideas what to try next, or am I just expecting to much? Thanks.