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General discussion • Re: Significant CPU temperature difference between 2 almost same hardware and conditions

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under a roof
Is the roof a current fashion of metal sheet painted black on top? The amount of heat radiated from the roof could be enormous.

My interest is an approaching summer 35 ~ 38 air temp. In the shade but no natural breeze. Pi 4 with peak workloads for a short time every few minutes. If that variation is one Pi 4 versus another, I will test both my Pi 4 machines and select the coolest one.

Do you use a heatsink? Which one? I selected a smaller one to allow maximum use of the on board WiFi without blockage from the really big heatsinks. Your post made me rethink heatsinks.

Statistics: Posted by peterlite — Wed Oct 01, 2025 2:56 am



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