Thermal Grizzly AMD AM5 High Performance Heatspreader
Thermal Grizzly AMD AM5 High Performance Heatspreader SPECIFICATIONS:
- Color: Silver nickel-plated
- Material: Nickel-plated copper
- Socket Manufacturer: AMD
- Socket Type: AM5
Overview
The AM5 High Performance Heatspreader (HPHS) is an advanced upgrade heatspreader designed for AMD Ryzen 7000 processors. Featuring a 240% larger surface area and a diamond-milled precision finish , this nickel-plated copper heatspreader maximizes heat dissipation for both air and water cooling systems. Its ultra-smooth surface ensures optimal thermal contact with the CPU cooler, improving cooling efficiency and lowering operating temperatures.
Key Features
- Upgraded Design : Replaces the stock Socket Actuation Mechanism (SAM) and heatspreader for enhanced cooling performance.
- Surface Area : 240% larger surface area (22 cm²) compared to the original heatspreader, enabling superior heat transfer.
- Material : Constructed from nickel-plated copper , combining excellent thermal conductivity with corrosion resistance.
- Precision Surface : Diamond-milled for extremely low surface roughness, ensuring optimal contact with the CPU cooler.
- Compatibility : Works seamlessly with both air coolers and water coolers .
Technical Specifications
- Material : Nickel-plated copper
- Surface Finish : Diamond-milled precision surface
- Surface Area Increase : 240% larger than the stock heatspreader (22 cm² total surface area)
- Thermal Interface Compatibility : Compatible with traditional thermal pastes, gallium-based liquid metals, and KryoSheet graphene thermal pads .
- Nickel Barrier Layer : Prevents liquid metal diffusion into the copper, minimizing alloy formation and reducing the need for frequent reapplication.
- Thickness : Thinner than the stock AMD heatspreader, resulting in a 2 mm lower Z-height .
Scope of Delivery
- 1x AM5 High Performance Heatspreader
- 1x Insulation Sheet
- 4x Pan-head screws (UNC thread 1/4″)
- 1x Hexagon socket wrench (5/64″)
- 1x Angle wrench (Torx T20)
Benefits
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Improved Cooling Efficiency : The 240% larger surface area and precision-milled finish ensure maximum heat dissipation, lowering CPU temperatures during demanding tasks.
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Versatility : Compatible with both air and water cooling systems, making it suitable for a wide range of builds.
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Liquid Metal Support : The nickel-plated surface acts as a barrier layer, preventing gallium-based liquid metals from diffusing into the copper and maintaining long-term stability.
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Graphene Thermal Pad Option : Includes an insulation sheet for use with KryoSheet graphene thermal pads , providing a maintenance-free solution while protecting electronic components on the CPU package.
Compatibility
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Supported Processors :
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Incompatible Processors :
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Ryzen 8000G Series APUs (e.g., Ryzen 5 8500G, Ryzen 5 8600G, Ryzen 7 8700G). For more details, refer to the video: “AMD Ryzen 8000 Delidded – Liquid Metal Changes Everything!”
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Important Notes on Usage
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Cooler Compatibility :
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The AM5 High Performance Heatspreader is 2 mm thinner than the stock heatspreader. Ensure that your CPU cooler’s mounting kit allows for a deeper installation.
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If adjustments are needed, consider using the AM5 Adapter & Offset Mounting Kit for compatibility.
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Nickel Plating Update (Post-August 2024) :
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The nickel plating process was updated in August 2024. New units may appear slightly duller, with visible copper due to a thinner nickel layer. However, this improves thermal conductivity by up to 5°C .
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Warranty and Risk Disclaimer
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Delidding Risks : Removing the heatspreader (“delidding”) is performed at your own risk and voids the manufacturer’s warranty . Any damage caused by delidding is not covered by the manufacturer.
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SAM Removal : Removing the Socket Actuation Mechanism (SAM) may also invalidate the motherboard manufacturer’s warranty. Proceed with caution.
Use Cases
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Enthusiast Builds : Ideal for overclockers and enthusiasts seeking to maximize thermal performance for higher sustained clock speeds.
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Custom Cooling Loops : Perfect for users building custom water-cooling setups with improved heat dissipation.
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High-Performance Workstations : Suitable for professionals running intensive workloads, such as video editing, 3D rendering, and scientific simulations.
Safety and Warranty Disclaimer
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Warning : Installation of the heatspreader requires technical expertise. Mishandling may result in permanent damage to the processor.
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Warranty Void : Delidding and replacing the heatspreader invalidates the manufacturer’s warranty. Proceed at your own risk.
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Disclaimer : Always follow the provided instructions carefully and ensure proper safety precautions are taken.


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