Here is a run with "How Duty" set to 0. Seems to be working fine. FYI... FAN2 and FAN3 took a dump recently. 3rd one in the last 3 weeks. I guess they all die at about the same age. The replacement fans will arrive today.
Code:
****** SETTINGS ****** CPU zone 1; Peripheral zone 0 CPU fans min/max duty cycle: 15/100 PER fans min/max duty cycle: 15/100 CPU fans - measured RPMs at 30% and 100% duty cycle: 500/1500 PER fans - measured RPMs at 30% and 100% duty cycle: 900/2500 Drive temperature setpoint (C): 35 Kp=4, Kd=40 Drive check interval (main cycle; minutes): 5 CPU check interval (seconds): 3 CPU reference temperature (C): 40 CPU scalar: 6 Assuming fan duty as set Getting CPU temperatures via sysctl Key to drive status symbols: * spinning; _ standby; ? unknown Version 2020-08-20 Wednesday, Oct 28 CPU New_Fan% New_RPM_____________________ da0 da1 da2 da3 da4 da5 da6 da7 ada0 ada1 Tmax Tmean ERRc P D TEMP MODE CPU PER FANA FAN1 FAN2 FAN3 FAN4 08:43:19 *32 *32 *33 *35 *37 *37 *35 *38 *39 *36 ^39 35.40 0.40 1.60 3.20 32 Full 50 55 800 1600 --- --- 1800 08:48:32 *32 *31 *32 *35 *37 *36 *35 *38 *39 *35 ^39 35.00 0.00 0.00 -3.20 34 Full 15 52 200 1500 --- --- 1700 08:53:47 *32 *31 *32 *35 *37 *36 *34 *38 *39 *35 ^39 34.90 -0.10 -0.40 -0.80 33 Full 15 51 200 1500 --- --- 1700 08:59:01 *32 *31 *32 *34 *37 *36 *34 *38 *38 *35 ^38 34.70 -0.30 -1.20 -1.60 34 Full 15 48 200 1400 --- --- 1600 09:04:16 *32 *31 *32 *34 *37 *36 *34 *38 *38 *35 ^38 34.70 -0.30 -1.20 0.00 34 Full 15 47 200 1400 --- --- 1500 09:09:29 *32 *31 *32 *34 *37 *36 *34 *38 *38 *35 ^38 34.70 -0.30 -1.20 0.00 33 Full 15 46 200 1400 --- --- 1500 09:14:45 *32 *31 *32 *34 *37 *36 *34 *38 *38 *35 ^38 34.70 -0.30 -1.20 0.00 34 Full 15 45 200 1300 --- --- 1500 09:20:00 *32 *31 *32 *35 *37 *36 *34 *38 *38 *35 ^38 34.80 -0.20 -0.80 0.80 34 Full 15 45 200 1300 --- --- 1500 09:25:14 *32 *31 *32 *35 *37 *36 *34 *38 *38 *35 ^38 34.80 -0.20 -0.80 0.00 34 Full 15 44 200 1300 --- --- 1500 09:30:27 *32 *31 *32 *35 *37 *36 *34 *38 *38 *35 ^38 34.80 -0.20 -0.80 0.00 34 Full 15 43 200 1300 --- --- 1400 09:35:42 *32 *31 *32 *35 *37 *36 *35 *38 *38 *35 ^38 34.90 -0.10 -0.40 0.80 33 Full 15 43 200 1300 --- --- 1400 09:40:56 *32 *31 *32 *35 *37 *36 *35 *38 *39 *35 ^39 35.00 0.00 0.00 0.80 33 Full 15 44 200 1300 --- --- 1500 09:46:10 *32 *31 *32 *35 *37 *36 *35 *38 *39 *35 ^39 35.00 0.00 0.00 0.00 35 Full 15 44 200 1300 --- --- 1500 09:51:23 *32 *31 *32 *35 *37 *36 *35 *38 *39 *35 ^39 35.00 0.00 0.00 0.00 37 Full 15 44 200 1300 --- --- 1500 09:56:37 *32 *32 *32 *35 *37 *36 *35 *38 *39 *35 ^39 35.10 0.10 0.40 0.80 34 Full 15 45 200 1300 --- --- 1500 10:01:53 *32 *32 *32 *35 *37 *36 *35 *38 *39 *35 ^39 35.10 0.10 0.40 0.00 35 Full 15 45 200 1300 --- --- 1500 10:07:07 *32 *32 *32 *35 *37 *36 *35 *38 *39 *35 ^39 35.10 0.10 0.40 0.00 34 Full 15 45 200 1300 --- --- 1500 10:12:21 *32 *32 *32 *35 *37 *36 *35 *38 *39 *36 ^39 35.20 0.20 0.80 0.80 34 Full 15 47 200 1400 --- --- 1500 10:17:35 *32 *32 *32 *35 *37 *36 *35 *38 *39 *36 ^39 35.20 0.20 0.80 0.00 35 Full 15 48 200 1400 --- --- 1600 10:22:49 *32 *32 *32 *35 *37 *36 *35 *38 *39 *36 ^39 35.20 0.20 0.80 0.00 34 Full 15 49 200 1400 --- --- 1600 10:28:03 *32 *32 *32 *35 *37 *36 *35 *38 *39 *36 ^39 35.20 0.20 0.80 0.00 39 Full 15 50 200 1500 --- --- 1600 10:33:18 *32 *32 *32 *35 *37 *36 *35 *38 *39 *36 ^39 35.20 0.20 0.80 0.00 34 Full 15 51 200 1500 --- --- 1700 10:38:32 *32 *32 *32 *35 *37 *36 *35 *38 *39 *36 ^39 35.20 0.20 0.80 0.00 34 Full 15 52 200 1500 --- --- 1700 10:43:46 *32 *32 *32 *35 *37 *36 *35 *38 *39 *35 ^39 35.10 0.10 0.40 -0.80 36 Full 15 52 200 1500 --- --- 1700 10:49:00 *32 *32 *32 *35 *37 *36 *35 *38 *39 *35 ^39 35.10 0.10 0.40 0.00 34 Full 15 52 200 1500 --- --- 1700 10:54:14 *32 *32 *32 *35 *37 *36 *35 *38 *39 *35 ^39 35.10 0.10 0.40 0.00 34 Full 15 52 200 1500 --- --- 1700 10:59:28 *32 *32 *32 *35 *37 *36 *35 *38 *39 *35 ^39 35.10 0.10 0.40 0.00 35 Full 15 52 200 1500 --- --- 1700 11:04:43 *32 *32 *32 *35 *37 *36 *35 *38 *39 *35 ^39 35.10 0.10 0.40 0.00 35 Full 15 52 200 1500 --- --- 1700 11:09:58 *32 *32 *32 *35 *37 *36 *35 *38 *39 *35 ^39 35.10 0.10 0.40 0.00 35 Full 15 52 200 1500 --- --- 1700 11:15:13 *32 *32 *32 *35 *37 *36 *35 *38 *39 *36 ^39 35.20 0.20 0.80 0.80 35 Full 15 54 200 1600 --- --- 1700 11:20:27 *32 *32 *32 *35 *37 *36 *35 *38 *39 *36 ^39 35.20 0.20 0.80 0.00 35 Full 15 55 200 1600 --- --- 1800 11:25:42 *32 *32 *32 *35 *37 *36 *35 *38 *39 *36 ^39 35.20 0.20 0.80 0.00 34 Full 15 56 200 1600 --- --- 1800 11:30:57 *32 *32 *32 *35 *37 *36 *35 *38 *39 *36 ^39 35.20 0.20 0.80 0.00 35 Full 15 57 200 1600 --- --- 1800