\]
## Installation Guide
- Step 1: Apply Thermal Pads
Identify the main heat-generating components on the CM5 board (CPU, RAM, and other ICs).
Peel off the protective film from the thermal pads.
Apply the appropriately sized thermal pads to each component:
Larger pads for the main processor and RAM modules
Smaller pads for auxiliary ICs
Ensure the pads are centered and fully cover the component surfaces.
- Step 2: Align Heatsink with CM5
Position the heatsink over the CM5 board, aligning the mounting holes with the board's screw holes.
Ensure the blower fan cable is oriented correctly for routing to the fan connector.
Gently press the heatsink down to ensure the thermal pads make full contact.
- Step 3: Tighten Screws
Insert the four M2.5 × 10 mm screws through the heatsink mounting holes.
For standalone CM5 installations: fasten the screws from the bottom side of the board.
For base plate mounting (e.g., Super4C): tighten the screws downward from the top.
Tighten the screws in a cross-pattern (diagonal sequence) to ensure even pressure distribution.
Do not overtighten — secure until firm resistance is felt.
- Step 4: Connect Fan Cable
Connect the blower fan's 4-pin PWM cable to the CM5 carrier board's fan header.
Ensure correct pin alignment (typically: GND, 12V, PWM, TACH).
Route the cable neatly to avoid interference with other components.
==Thermal Performance==
Based on controlled testing under the following conditions:
* Test Device: CPU Cooling Module
* Test Duration: 30 minutes
* Ambient Temperature: 25°C
*Measurement Method: IR Thermometer
The cooling system maintains CPU temperatures in the optimal range (45–50°C) under typical workloads, with peak temperatures reaching approximately 54–58°C under sustained stress. The thermal management flow works as follows:
Heat Source: CM5 board generates heat from the CPU and memory
Heat Conduction: Thermal pads efficiently transfer heat from components to the heatsink base
Heat Spreading: Aluminum heatsink distributes heat across its fin array
Heat Removal: 3007 blower fan actively removes heat with strong, directed airflow
Installation Notes Standalone CM5: Always fasten screws from the bottom side to avoid damaging the board. Base Plate Mounting: When using with the Super4C or other baseboards, tighten screws from the top downward. Use the included M2.5 screwdriver to prevent stripping the screw heads. Thermal Pad Handling Do not reuse thermal pads once they have been applied and removed — the included 5 pads are single-use. Ensure the CM5 board surface is clean and free of dust or debris before applying pads. Do not stretch or deform the thermal pads during application.
### Fan Operation
The 3007 blower fan supports PWM control. Ensure your carrier board provides the correct PWM signal.
Verify the fan connector pinout matches your CM5 carrier board before connecting.
The fan is not waterproof — avoid exposure to moisture or conductive liquids.
===General Safety=== Power off the CM5 board completely before installing or removing the heatsink. Allow the module to cool down before handling after extended operation. Do not obstruct the fan intake or exhaust ports — maintain at least 5mm clearance. Avoid dropping or applying excessive mechanical force to the heatsink assembly.
### Compatibility
| Platform | Compatibility |
|-------------------------------------|----------------------------------------------|
| Raspberry Pi Compute Module 5 (CM5) | ✅ Native Support |
| Super4C Cluster Baseboard | ✅ Verified |
| Generic CM5 Carrier Boards | ✅ Compatible (with standard mounting holes) |
| Raspberry Pi CM4 / CM3 | ❌ Not Compatible (different form factor) |
### Technical Specifications
| Specification | Value |
|---------------------|--------------------------------------------|
| Product Model | CM5 Aluminum Heatsink with 3007 Blower Fan |
| Heatsink Material | Aluminum Alloy |
| Heatsink Dimensions | 55 × 40 × 16 mm |
| Fan Size | 3007 (30 × 30 × 7 mm) |
| Fan Type | Blower (Centrifugal) |
| Fan Control | 4-pin PWM |
| Mounting | 4-point M2.5 screw mounting |
| Thermal Pad Count | 5 pieces (various sizes) |
| Included Tools | M2.5 Screwdriver |
| Weight | \~35g (heatsink + fan) |
## Support
For additional support, installation guidance, or compatibility questions, please refer to your product documentation or contact us by Email: support@52pi.com.
## Features
- Active + Passive Cooling
- Combines a high-efficiency 3007 blower fan with a premium aluminum heatsink for superior thermal performance
- Dual cooling mechanism ensures rapid heat removal under both idle and load conditions
- 3007 Blower Fan
- Compact 30mm × 30mm × 7mm form factor
- Strong, stable airflow with directed air channeling
- Supports PWM speed control via Raspberry Pi OS
- Low noise operation with high static pressure
- Aluminum Heatsink
- Premium-grade aluminum construction
- Optimized fin array design for fast heat spreading
- Large surface area for efficient thermal dissipation
- Anodized black finish for durability and aesthetics
### Thermal Interface
- Includes 5 high-performance thermal pads for efficient heat transfer
- Pre-cut pads match CM5 board component layout precisely
- Ensures optimal thermal conductivity between the CM5 board and heatsink
### Easy Installation
- Complete mounting kit included — no additional tools required
- Four-point mounting system ensures even pressure distribution
- Compatible with standalone CM5 installations and base plate mounting
### System Compatibility
- Designed specifically for Raspberry Pi Compute Module 5
- Compatible with Super4C Cluster Baseboard
- Supports automatic fan control through Raspberry Pi OS thermal management
## Package Contents
| Item | Quantity |
|--------------------------------------------|----------|
| CM5 Aluminum Heatsink with 3007 Blower Fan | x 1 |
| M2.5 × 10 mm Phillips Flat Head Screws | × 4 |
| M2.5 Nuts | × 4 |
| Thermal Pads (various sizes) | × 5 |
| M2.5 Screwdriver | × 1 |
### Thermal Pad Specifications
The included thermal pads are pre-sized to match the CM5 board layout:
- 12 mm × 15 mm × 1 mm
- 12 mm × 15 mm × 2.5 mm
- 12 mm × 12 mm × 2.5 mm
- 7 mm × 7 mm × 2.5 mm (× 2)
### Heat dissipation Effect
## Application Scenario
- Compatible with DeskPi Super4C mainboard
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