My IMX8MQ based modules are running a bit hotter than I would like. They have a passive heat sink, but they are outside in a weatherproof enclosure. On the hottest days, some do get past the 95C thermal tipping point. I have lowered my cpu frequency to 1GHz (that helped a lot) and I have turned off two cores (that did not help much). I am constantly using two cores at ~60% load. Still, the modules runs about 20C hotter than a raspberry pi CM4 running similar code which I feel is a pretty comparable processor in terms of process node (28nm) and horespower (quad core, 1.5Ghz). What else can I do to get my temps down? I heard the latest IMX8 silicon revisions are supposed to run a lot cooler. Is that anybody elses experience? Mine are about a year old and are silicon revision B0. I'm running imx linux kernel version 5-15-lf if that matters.
