// Goes with it

Complete the build

Our own DIYKIT board was made for this — plus what it is usually wired or ordered with.

DKB-0004-B

GPIO Card for Raspberry Pi 4 & 5 - 40-Pin Pinout Reference

53 in stock

// 01

Description

An active cooler for the Raspberry Pi 5: a finned aluminium heatsink that covers the processor, memory, power chip and RP1, with a 30 mm blower fan on top. The fan plugs into the Pi 5’s own 4-pin fan header, so Raspberry Pi OS drives it with PWM - silent while idle, spinning up only when the board gets warm.

Without cooling a Pi 5 reaches its 85 °C throttle point within minutes of sustained load and slows down. With this cooler fitted it holds full clock speed, which matters for compiling, media servers, AI workloads, desktop use and anything running inside a case.

What it does

Keeps the Pi 5 below the thermal throttle under continuous load
Automatic, temperature-based fan speed - no scripts or configuration
Tool-free fit: thermal pads, two spring push pins, one cable
Same footprint as the official Active Cooler, so it fits the official Pi 5 case and most third-party cases made for it

Specifications

Specification	Value
Compatible with	Raspberry Pi 5 only (uses the Pi 5 fan header and mounting holes)
Heatsink	Anodised aluminium, finned, covers SoC, RAM, PMIC and RP1
Fan	30 mm blower, 5 V, PWM speed control with tachometer
Fan connector	4-pin JST-SH, plugs into the Pi 5 FAN header
Fan wires	GND, 5 V, PWM, TACH
Speed control	Automatic from Raspberry Pi OS: off below 50 °C, steps up at 60 °C and 67.5 °C, full at 75 °C
Mounting	2 spring-loaded push pins into the Pi 5 board holes, no screws
Thermal interface	Thermal pads supplied (4 pieces)
Footprint	Same as the official Active Cooler, fits the official Pi 5 case
Weight	About 45 g

Fitting

Power the Pi 5 off and unplug it
Place the thermal pads on the SoC, the RAM chip, the PMIC and the RP1 chip (the heatsink has a raised pad for each)
Line the heatsink up with the two mounting holes on the board and press the spring push pins down until they click
Plug the 4-pin cable into the FAN header (between the USB-C power port and the 40-pin header)
Boot. The fan may run briefly at start-up and then stop until the board warms up - that is normal

Checking it works

Run vcgencmd measure_temp in a terminal. Under a stress test the temperature should settle well below 70 °C and the fan should audibly step up as the board warms. The fan speed thresholds can be changed in /boot/firmware/config.txt if you want it quieter or more aggressive.

// 02

Specifications

Compatible with Raspberry Pi 5 only (uses the Pi 5 fan header and mounting holes)

Heatsink Anodised aluminium, finned, covers SoC, RAM, PMIC and RP1

Fan 30 mm blower, 5 V, PWM speed control with tachometer

Fan connector 4-pin JST-SH, plugs into the Pi 5 FAN header

Fan wires GND, 5 V, PWM, TACH

Speed control Automatic from Raspberry Pi OS: off below 50 °C, steps up at 60 °C and 67.5 °C, full at 75 °C

Mounting 2 spring-loaded push pins into the Pi 5 board holes, no screws

Thermal interface Thermal pads supplied (4 pieces)

Footprint Same as the official Active Cooler, fits the official Pi 5 case

Weight About 45 g

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// From Raspberry Pi