{"id":16907,"date":"2021-11-12T08:10:28","date_gmt":"2021-11-12T13:10:28","guid":{"rendered":"https:\/\/scruss.com\/blog\/?p=16907"},"modified":"2021-11-12T08:10:28","modified_gmt":"2021-11-12T13:10:28","slug":"raspberry-pi-zero-2-w-slides-and-thermals","status":"publish","type":"post","link":"https:\/\/scruss.com\/blog\/2021\/11\/12\/raspberry-pi-zero-2-w-slides-and-thermals\/","title":{"rendered":"Raspberry Pi Zero 2 W: slides and thermals"},"content":{"rendered":"\n<p>Slides from last night&#8217;s talk: <\/p>\n\n\n\n<div class=\"wp-block-file\"><a href=\"https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/Meet_the_Raspberry_Pi_Zero_2_W.odp\">Meet_the_Raspberry_Pi_Zero_2_W.odp<\/a><a href=\"https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/Meet_the_Raspberry_Pi_Zero_2_W.odp\" class=\"wp-block-file__button\" download>Download<\/a><\/div>\n\n\n\n<p>It\u2019s impossible to have a Raspberry Pi Zero overheat unless you overclock it. That&#8217;s why you don&#8217;t get any cases for it with fans or heat sinks. The quad-core Raspberry Pi Zero 2 W, though, has the potential to do so. Here are some numbers:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Used official case with lid fitted: increases SoC temperature +3 \u00b0C over free air<\/li><li>Test &#8211; CPUBurn: <a href=\"https:\/\/github.com\/pmylund\/cpuburn\">https:\/\/github.com\/pmylund\/cpuburn<\/a><\/li><li>Tested 4, 3 and 2 cores burning in 32-bit and 64-bit modes: time from idle to throttling (80 \u00b0C) measured<\/li><li>GPU overheat not tested.<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"722\" src=\"https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-4cores-64case-1024x722.png\" alt=\"line graph of cpu temperature against time. Temperature rises sharply from about 47 degrees C to 82 degrees C in around four minutes\" class=\"wp-image-16911\" srcset=\"https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-4cores-64case-1024x722.png 1024w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-4cores-64case-320x226.png 320w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-4cores-64case-160x113.png 160w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-4cores-64case-768x541.png 768w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-4cores-64case-1536x1083.png 1536w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-4cores-64case-1568x1105.png 1568w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-4cores-64case.png 1680w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>All 4 cores burning, 64-bit mode: time to overheat = under 3\u00bd minutes<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"722\" src=\"https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-4cores-32case-1024x722.png\" alt=\"line graph of cpu temperature against time. Temperature rises sharply from about 47 degrees C to 82 degrees C in just over four minutes\" class=\"wp-image-16909\" srcset=\"https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-4cores-32case-1024x722.png 1024w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-4cores-32case-320x226.png 320w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-4cores-32case-160x113.png 160w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-4cores-32case-768x541.png 768w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-4cores-32case-1536x1083.png 1536w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-4cores-32case-1568x1105.png 1568w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-4cores-32case.png 1680w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>All 4 cores burning, 32-bit mode: time to overheat = just over 4 minutes<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"722\" src=\"https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-3cores-64case-1024x722.png\" alt=\"line graph of cpu temperature against time. Temperature rises moderately from about 47 degrees C to 81 degrees C in around seven minutes\" class=\"wp-image-16910\" srcset=\"https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-3cores-64case-1024x722.png 1024w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-3cores-64case-320x226.png 320w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-3cores-64case-160x113.png 160w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-3cores-64case-768x541.png 768w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-3cores-64case-1536x1083.png 1536w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-3cores-64case-1568x1105.png 1568w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-3cores-64case.png 1680w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>3 out of 4 cores burning, 64-bit mode: time to overheat = just over 7 minutes<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"722\" src=\"https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-3cores-32case-1024x722.png\" alt=\"line graph of cpu temperature against time. Temperature rises slowly from about 47 degrees C to 81 degrees C in around ten minutes\" class=\"wp-image-16912\" srcset=\"https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-3cores-32case-1024x722.png 1024w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-3cores-32case-320x226.png 320w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-3cores-32case-160x113.png 160w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-3cores-32case-768x541.png 768w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-3cores-32case-1536x1083.png 1536w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-3cores-32case-1568x1105.png 1568w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-3cores-32case.png 1680w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>3 out of 4 cores burning, 32-bit mode: time to overheat = 9\u00bd minutes<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"722\" src=\"https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-2cores-32case-1024x722.png\" alt=\"line graph of cpu temperature against time. Temperature rises very slowly, reach 70 degrees C in 40 minutes and then only rising very slightly to about 73 degrees C in the entire run time of 3 hours 20 minutes\" class=\"wp-image-16908\" srcset=\"https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-2cores-32case-1024x722.png 1024w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-2cores-32case-320x226.png 320w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-2cores-32case-160x113.png 160w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-2cores-32case-768x541.png 768w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-2cores-32case-1536x1083.png 1536w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-2cores-32case-1568x1105.png 1568w, https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-2cores-32case.png 1680w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>2 out of 4 cores burning, 32-bit mode: time to overheat = basically never<\/figcaption><\/figure>\n\n\n\n<p>Unless you&#8217;re doing things that might indicate you should be using a bigger computer, a Raspberry Pi Zero 2 W won&#8217;t overheat and doesn&#8217;t need any form of cooling. If you&#8217;re overclocking, well &#8230; it&#8217;s your choice to have cooling equipment worth more than the computer it&#8217;s trying to cool.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Slides from last night&#8217;s talk: It\u2019s impossible to have a Raspberry Pi Zero overheat unless you overclock it. That&#8217;s why you don&#8217;t get any cases for it with fans or heat sinks. The quad-core Raspberry Pi Zero 2 W, though, has the potential to do so. Here are some numbers: Used official case with lid [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":16908,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"Raspberry Pi Zero 2 W: no, you probably won't overheat it","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[7],"tags":[3103,2510,43,798],"class_list":["post-16907","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-computers-suck","tag-meetup","tag-raspberrypi","tag-toronto","tag-zero"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/scruss.com\/wordpress\/wp-content\/uploads\/2021\/11\/cpuburn-2cores-32case.png","jetpack_shortlink":"https:\/\/wp.me\/pQNZZ-4oH","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/posts\/16907","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/comments?post=16907"}],"version-history":[{"count":1,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/posts\/16907\/revisions"}],"predecessor-version":[{"id":16913,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/posts\/16907\/revisions\/16913"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/media\/16908"}],"wp:attachment":[{"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/media?parent=16907"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/categories?post=16907"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/tags?post=16907"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}