Temps/pwm Survey

[tuxd3v]

it seems that no additional reinvention is required,
in the case, chassis fan is not connected yet, heatsink 30mm with fan, in the room there is no air conditioning, immobile air, air temperature +25С
My board in SOHO NAS server mode, Samba/NFS/Apache/MySQL/Transmission/OpenVPN,
for a personal internet site, torrent download, Veeam backup of three computers, local network video playback, Remote access to the local network.
the second day I observe a temperature of +39...+ 42C
parts of logs:

Code:

2018-09-20,00:06:45,408,408,408,408,816,816,39,190 2018-09-20,00:06:46,408,408,408,408,816,816,40,190 2018-09-20,00:06:47,408,408,408,408,816,816,40,115 2018-09-20,00:06:48,408,408,408,408,408,408,40,115 2018-09-20,00:06:49,408,408,408,408,816,816,39,115 2018-09-20,00:06:50,408,408,408,408,816,816,39,115 2018-09-20,00:06:51,408,408,408,408,816,816,40,115 2018-09-20,00:07:43,408,408,408,408,816,816,39,0 2018-09-20,00:07:44,408,408,408,408,408,408,39,0 2018-09-20,00:07:45,408,408,408,408,816,816,39,0 2018-09-20,00:07:46,408,408,408,408,816,816,39,0 2018-09-20,00:07:47,408,408,408,408,816,816,39,0 2018-09-20,00:07:48,408,408,408,408,816,816,40,0 2018-09-20,00:08:53,408,408,408,408,408,408,40,0 2018-09-20,00:08:54,408,408,408,408,600,600,39,0 2018-09-20,00:08:55,408,408,408,408,408,408,39,190 2018-09-20,00:08:56,408,408,408,408,600,600,39,190 2018-09-20,00:08:57,408,408,408,408,600,600,39,115 2018-09-20,00:08:58,408,408,408,408,600,600,39,115 2018-09-20,00:08:59,408,408,408,408,408,816,39,115 2018-09-20,00:09:00,408,408,408,408,816,816,39,115 2018-09-20,00:09:01,408,408,408,408,816,816,39,0 2018-09-20,00:09:02,408,408,408,408,816,816,39,0 2018-09-20,00:09:03,408,408,408,408,816,816,39,0 2018-09-20,11:46:42,408,408,408,408,816,816,39,38,0 2018-09-20,11:46:43,600,600,600,408,816,816,39,38,0 2018-09-20,11:46:44,408,408,408,408,816,816,39,38,0 2018-09-20,11:46:45,1416,1416,1416,1416,816,816,39,38,0 2018-09-20,11:46:46,1416,1416,1416,1416,816,816,39,38,190 2018-09-20,11:46:47,1416,1416,1416,1416,816,816,40,38,115 2018-09-20,11:46:48,1416,1416,1416,1416,816,816,39,38,115 2018-09-20,11:46:49,408,408,408,408,816,816,39,38,115 2018-09-20,11:46:50,1416,1416,1416,1416,600,600,39,38,115 2018-09-20,11:46:51,408,408,408,408,816,816,39,38,115 2018-09-20,11:46:52,408,408,408,408,816,816,39,38,0 2018-09-20,11:46:53,408,408,408,408,600,600,39,38,0 2018-09-20,11:46:55,408,408,408,408,816,816,39,38,0 2018-09-21,09:46:32,408,408,408,408,816,816,41,40,120 2018-09-21,09:46:34,1416,1416,1416,1416,816,816,41,40,125 2018-09-21,09:46:35,1416,1416,1416,1416,816,816,41,40,125 2018-09-21,09:46:36,1416,1416,1416,1416,816,816,41,40,125 2018-09-21,09:46:37,408,408,408,408,600,600,40,40,125 2018-09-21,09:46:38,600,600,600,600,816,816,40,40,125 2018-09-21,09:46:39,1416,1416,1416,1416,816,816,41,40,120 2018-09-21,09:46:40,408,408,408,408,816,816,41,40,120 2018-09-21,09:46:41,1416,1416,1416,1416,816,816,40,40,120 2018-09-21,09:46:42,1416,1416,1416,1416,816,816,41,40,120 2018-09-21,09:46:43,408,408,408,408,600,600,41,40,120 2018-09-21,09:46:44,408,408,408,408,816,816,41,40,125 2018-09-22,21:18:24,600,600,600,600,816,816,42,42,140 2018-09-22,21:18:25,1416,1416,1416,1416,816,816,42,41,140 2018-09-22,21:18:26,1416,1416,1416,1416,600,600,42,42,140 2018-09-22,21:18:27,600,600,600,600,816,816,43,42,140 2018-09-22,21:18:28,1416,1416,1416,1416,816,816,42,41,140 2018-09-22,21:18:29,1416,1416,1416,1416,408,408,42,41,140 2018-09-22,21:18:30,1416,1416,1416,1416,816,816,42,42,140 2018-09-22,21:18:31,600,600,408,408,816,816,42,42,140 2018-09-22,21:18:32,600,600,600,600,816,816,42,41,140 2018-09-22,21:18:33,1416,1416,1416,1416,816,816,42,42,140 2018-09-22,21:18:34,1416,1416,1416,1416,408,408,42,41,140 2018-09-22,21:18:35,1416,1416,1416,1416,816,816,42,42,140 2018-09-22,21:18:36,1416,1416,1416,1416,408,408,42,42,140 2018-09-23,06:24:31,408,408,408,408,816,816,42,41,135 2018-09-23,06:24:32,408,408,408,408,600,600,41,41,135 2018-09-23,06:24:33,408,408,408,408,816,816,42,41,135 2018-09-23,06:24:34,408,408,408,408,816,816,42,41,135 2018-09-23,06:24:35,408,408,408,408,816,816,42,41,135

Nice Setup 
Yes the need for a Fan only happens when you push the processor for some time.
In your setup, maybe the hard task would be the backup of the 3 machines..
But it would be nothing like running full load during hours, I think.