Have you tested it with a fully loaded bus, such as heavily I/O-bound processes? Saturated access to memory, microSD, WiFi, Ethernet, and/or USB? This is not a fact because you have not even remotely demonstrated it to be true. "Using passive cooling in the form of a Flirc means your Pi 4 will never throttle under 100% CPU." It has value, but only limited as a single observation. That is a statement of observation of an apparently limited trial of a single board under unspecified conditions. It hovered around 61º or so without any throttling." "I can say definitively that with the Flirc in a warm room with no direct air movement, the Pi 4 rose gradually to as high as 63º centigrade, but never higher. The best thing? The base model is only $20 $5!.ĭo you know a related subreddit? We'd love to know. Welcome to /r/raspberry_pi, a subreddit for discussing the raspberry pi credit card sized, ARM powered computer, and the glorious things we can do with it. Pi project ideas: There's a huge list right here on this sub! Obviously 100% constant extended use isn't likely but it'd be nice to have a case which can comfortably manage that! I'm just not sure if one exists.Friendly reminder: Please don't just post pictures of unused pis - do a project!Ĭomplete r/raspberry_pi Rules Check the FAQ and Helpdesk here I've not been able to test myself but seeing some benchmarks online I'd seen extended 100% cpu stress tests (when overclocked to 2.0ghz) see the Flirc case to throttle eventually which suggests the level of heat dissipation isn't enough to level out below 80c. I cannot try for myself as I have neither Flirc case, nor desire to overclock my Pi4b as its already more powerful than my requirements. Reports suggest the Flirc case with no fans can already achieve this. Then if the case had 2 low powered fans on the top running quiet.ĭoes such a case exist yet? I feel like this design would easily run at 100% in 2.0ghz for extended periods without any throttling. This would allow a thermal pad to be placed on each of the heatsink pillars for optimal heat transfer to the case itself. I'd love to see an all metal enclosure, like the Flirc case, with 3 heatsink pillars which is screwed fairly tight to the board. At the highest, it runs in the high 50s but normally in the 40s. Nicely made: The instructions are very clear: The fan can be run at 3volt and is almost silent. I consider this the best of the three cases. As this is tucked away behind my desk, aesthetics are not important and goes to show how additional thermal capacity, albeit crude, can help.ģ. I added ALDI hardware corner brackets ("ALDI Angle Set 4 piece" 2.99GBP) top and bottom, which although primitive and steel, brought the temp down into the high 40s, low 50s. I concluded that the case had insufficient thermal capacity (for my liking). My Pi ran up to 68deg and the case felt uncomfortably hot to the touch. It now runs below 60degC, but is a bit noisy and the fan isn't secured. It ran hot so I placed a small fan inside the case, using the existing ventilation holes. The official RPi4 case with a finned heat sink. Results of my non-scientific trial is as follows:ġ. I know that the 'experts' say don't worry, but as an Electronic Engineer, I am uncomfortable running CPUs continuously at some of the temperatures recorded in these threads. I'm most impressed with the Pi4, as a desktop replacement but am concerned over the heat issue. A most useful thread, thank you all, along with the mass of information at
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