C235

C235 Dimensions

C235 rear view

C235

C235

C235 installation guide

C235: how to install fan?

Overview

This is a 12mm aluminum alloy heatsink specially designed for the Raspberry Pi Compute Module 4 CM4 to slove its heat generation problem, we call it C235. This heatsink can also support intall a 30mm cooling fan above.

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Geekworm Cooler Series:

Picture	Model	Compatible With	Material	Thickness(mm)	Support Fan
	Pi 5 official Active Cooler	Raspberry Pi 5	Aluminum Alloy	10mm	√ with 4-pin 3010 blower fan
	H505	Raspberry Pi 5	Aluminum Alloy	11.6mm	√ with 4-pin 3007 blower fan
	H509	Raspberry Pi 5	Aluminum Alloy	15mm	× don't support fan installation
	Argon THRML 30-AC	Raspberry Pi 5	Aluminum Alloy	9.6mm	√ with 4-pin 3007 blower fan
	H501	Raspberry Pi 5	Aluminum Alloy	9.5mm	√ with 4-pin 3007 blower fan
	H502	Raspberry Pi 5	Copper	4mm	× support 30x30 fan installation
	P165-B	Raspberry Pi 4	Aluminum Alloy	11mm	× support 30x30 fan installation
	P165-A	Raspberry Pi 4	Aluminum Alloy	7mm	× support 25x25 fan installation
	H402	Raspberry Pi 4	Copper	4mm	× don't support fan installation
	C235	Raspberry Pi Computer Module 4 (CM4)	Aluminum Alloy	12mm	× support 30x30 fan installation
	C296	Raspberry Pi Zero 2 W	Aluminum Alloy	10mm	× don't support fan installation

Features

• Compatible with Raspberry pi Compute Module 4 Motherboard
• High quality embedded Armor Aluminum Alloy Heatsink
• Supports to install a 30mm fan to get more cooling down(You can use the 3007 or 3010 fan)
• Heatsink dimensions: 54x39x12mm/2.12x1.53x0.47inch;
• Net weight: 30g/0.07lb

3010 Fan

• Rated voltage: DC5V;
• Working voltage :3.0 ~ 12 V;
• Current: 0.1A;
• Air volume: 5 m3 / h;
• Rpm: about 6000RPM;
• Noise: 18dB
• The interface be change to 2.54 interface;

Packing List

• 1x 12mm heatsink for CM4
• 4x PM2.5x16mm Screws
• 1x Thermal Tape(attach on the CPU of CM4)

User Manual

Installation Video: https://youtu.be/KeEGAsvKkKw

FAQ

Q1. What the clearance is between the rpi compute 4 module and the heatsink?

A: The design clearance is 0.3mm.

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Anonymous user #3

25 months ago

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There is no bump on the heatsink for the second memory chip found on cm4 8GB

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Anonymous user #2

36 months ago

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This heat sink seems not to be suitable for raspberry CM4 modules, because it is not designed to cool all hot components! Namely, your heat sink has touch only to 2 of 4 components that can get very hot. The 2 not cooled ones will break within a short time with your heat sink!!!

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Abby

36 months ago

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Hi, Thanks for your message.

1. The main heat is from CPU, and the heat dissipation of other components is very small, so it is not necessary to put a heat sink on all the components.

2. If the heat dissipation is not achieve, pls check whether the heatsink had touched CPU.

Due to production deviation, a few heatsink may have errors and need to use 2 heat sink pads. If you encounter this problem, please use 2pcs thermal pads and stack them on the CPU of the CM4 module.

3. Pls remember to remove the protective film.

4. It is recommended to consider using CPU grease if need better heat dissipation.

Regards,

Abby / Geekworm

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Anonymous user #1

44 months ago

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height of cpu has changed and cpu is not connected to heatsink. requires additional thermal pad

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Abby

36 months ago

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Hi， The heatsink now equipped with 2pcs thermal pads. If you encounter this problem, please use 2pcs thermal pads and stack them on the CPU of the CM4 module. Pls remember to remove the protective film.

Did you get the thermal pads? Please contact the customer service of the corresponding website and the customer service will help you.

Regards,

Abby / Geekworm

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