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Original file line number Diff line number Diff line change
Expand Up @@ -59,14 +59,22 @@ Thanks to built-in throttling, heatsinks are not necessary to prevent overheatin

=== Fan cases

Raspberry Pi 5 has two official fan options to assist with cooling:
To ensure the best performance for your Raspberry Pi, use an active cooling solution such as a fan. Raspberry Pi firmware manages fan speeds for all official fans.

==== Raspberry Pi 4 fan

For Raspberry Pi 4, add the https://www.raspberrypi.com/products/raspberry-pi-4-case-fan/[Raspberry Pi 4 Case Fan] to the lid of the Raspberry Pi 4 case.

==== Raspberry Pi 5 fans

For Raspberry Pi 5, use one of the official fan options:

* https://www.raspberrypi.com/products/active-cooler/[Active Cooler]
* https://www.raspberrypi.com/products/raspberry-pi-5-case/[Case for Raspberry Pi 5]

Both of these plug into the four-pin JST-SH PWM fan connector located in the upper right of the board between the 40-pin GPIO header and the USB 2 ports. The fan connector pulls from the same current limit as USB peripherals. We recommend the Active Cooler case for overclockers, since it provides better cooling performance.
Both of the Raspberry Pi 5 fan options plug into the four-pin JST-SH PWM fan connector located in the upper right of the board between the 40-pin GPIO header and the USB 2 ports. The fan connector pulls from the same current limit as USB peripherals. We recommend the Active Cooler case for overclockers, since it provides better cooling performance.

Both of the available official accessories are actively managed by Raspberry Pi firmware. As the temperature of the Raspberry Pi increases, the fan reacts in the following way:
As the temperature of the Raspberry Pi 5 increases, the fan reacts in the following way:

* below 50°C, the fan does not spin at all (0% speed)
* at 50°C, the fan turns on at a low speed (30% speed)
Expand All @@ -78,9 +86,9 @@ Temperature decreases use the same mapping with a 5°C **hysteresis**; fan speed

At boot the fan is turned on, and the tachometer input is checked to see if the fan is spinning. If it is, then the `cooling_fan` device tree overlay is enabled. This overlay is in `bcm2712-rpi-5-b.dtb` by default, but with `status=disabled`.

==== Fan connector pinout
==== Raspberry Pi 5 fan connector pinout

The fan connector is a 1mm pitch JST-SH socket containing the following four pins:
The Raspberry Pi 5 fan connector is a 1mm pitch JST-SH socket containing the following four pins:

[cols="1,2,2",width="50"%"]
|===
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Expand Up @@ -189,7 +189,7 @@ a|
* single-lane https://datasheets.raspberrypi.com/pcie/pcie-connector-standard.pdf[PCIe FFC connector]
* https://datasheets.raspberrypi.com/debug/debug-connector-specification.pdf[UART connector]
* RTC battery connector
* xref:raspberry-pi.adoc#fan-connector-pinout[four-pin JST-SH PWM fan connector]
* xref:raspberry-pi.adoc#raspberry-pi-5-fan-connector-pinout[four-pin JST-SH PWM fan connector]
* PoE+-capable Gigabit Ethernet (1Gb/s)
* 2.4/5GHz dual-band 802.11ac Wi-Fi 5 (300Mb/s)
* Bluetooth 5, Bluetooth Low Energy (BLE)
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