![]() If you look at the manual included, or the GPIO pin out schematics, you’ll see that a 5V is available on pin 4, and ground is available right next to it on pin 6. One thing that wasn’t included with the kit, was what pins to connect the PI cooling fan to. Please keep in mind these temperatures are after the latest firmware update which reduces operating temps. ![]() :/home/stephenw# vcgencmd measure_tempĪs you can see, the temperature went from a toasty 83 Celsius, down to 51 Celsius with the fan running. After installing the fan and letting it run for a while, the temperature dropped dramatically. Immediately I decided to hook up the fan and install it in the case. You can see that the CPU was running very hot! I sampled the CPU temp 3 times over a period of a minute to confirm it was running that hot. I could feel the heat coming from the top of the case so I decided to check to see what the temperatures were. ![]() Originally I left the fan unhooked until I was compiling a linux kernel on the Raspberry Pi 4. The PI cooling fan on the CanaKit case for the Raspberry Pi 4 can be somewhat loud once installed, however when doing CPU intensive operations, it’s a must have to keep your Pi cool.
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