https://community.nxp.com/t5/i-MX-Processors/IMX8MQ-gets-too-hot/m-p/1686909#M209169 <DIV><DIV><DIV><H1><STRONG><FONT size="2">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.</FONT></STRONG></H1></DIV></DIV></DIV> Wed, 12 Jul 2023 22:37:07 GMT synaption 2023-07-12T22:37:07Z https://community.nxp.com/t5/i-MX-Processors/IMX8MQ-gets-too-hot/m-p/1686909#M209169 <DIV><DIV><DIV><H1><STRONG><FONT size="2">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.</FONT></STRONG></H1></DIV></DIV></DIV> Wed, 12 Jul 2023 22:37:07 GMT https://community.nxp.com/t5/i-MX-Processors/IMX8MQ-gets-too-hot/m-p/1686909#M209169 synaption 2023-07-12T22:37:07Z https://community.nxp.com/t5/i-MX-Processors/IMX8MQ-gets-too-hot/m-p/1687893#M209256 <P>Hi,</P> <P>Thank you for your interest in NXP Semiconductor products,</P> <P>You can refer yourself to Reducing <A href="https://www.nxp.com/docs/en/nxp/application-notes/AN12118.pdf" target="_self">Power Consumption</A> and Chapter 6 Thermal Considerations from <A href="https://www.nxp.com/webapp/Download?colCode=IMX8MMHDG" target="_self">8M Mini Hardware Developers Guide</A></P> <P>Regards</P> Thu, 13 Jul 2023 20:46:11 GMT https://community.nxp.com/t5/i-MX-Processors/IMX8MQ-gets-too-hot/m-p/1687893#M209256 JosephAtNXP 2023-07-13T20:46:11Z https://community.nxp.com/t5/i-MX-Processors/IMX8MQ-gets-too-hot/m-p/1974429#M229716 <P>It turned out to be that different power supplies resulted in wildly different temperatures.&nbsp;&nbsp;</P> Tue, 15 Oct 2024 15:58:40 GMT https://community.nxp.com/t5/i-MX-Processors/IMX8MQ-gets-too-hot/m-p/1974429#M229716 synaption 2024-10-15T15:58:40Z https://community.nxp.com/t5/i-MX-Processors/IMX8MQ-gets-too-hot/m-p/2117751#M238303 <P>Hi,</P><P>May I know more about your possible solution?</P><P>I have an imx8m+ running hot as well and would like to know different considerations of decreasing the heat generated.</P> Tue, 17 Jun 2025 12:20:29 GMT https://community.nxp.com/t5/i-MX-Processors/IMX8MQ-gets-too-hot/m-p/2117751#M238303 AL_186 2025-06-17T12:20:29Z