Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Cooler Master Hyper 212 Halo Black CPU Air Cooler. Please read this manual thoroughly before installation to ensure proper setup and optimal performance.
Key Features
- Minimalistic Revamped: Refreshed jet-black aesthetic with a minimalistic design.
- Optimal Cooling: Four copper heat pipes and a copper base ensure efficient cooling for AMD R7 and Intel i7 processors.
- MF120 Halo² Fan: Optimized PWM blade design for premium airflow and stable cooling performance.
- Dynamic PWM Fan: 4-pin PWM header allows adjustable fan speeds from 690 to 1,800 RPM for balanced noise and airflow.
- Dual-Loop ARGB Rings: Dual-loop design with 50% larger LED rings for vibrant, customizable lighting.
- Simplified Brackets: Redesigned brackets for easy installation on AM5 and LGA 1851|1700 platforms.
- Versatile Compatibility: 154mm tall design ensures wide chassis compatibility.
Package Contents
The Cooler Master Hyper 212 Halo Black CPU Air Cooler package includes:
- CPU Cooler (Heatsink and Fan)
- Mounting Brackets for AMD (AM5/AM4)
- Mounting Brackets for Intel (LGA 1851/1700/1200)
- Thermal Paste
- Installation Screws and Accessories
- User Manual
Setup & Installation
Before beginning installation, ensure your system is powered off and unplugged. Refer to your motherboard manual for specific CPU socket information.
General Preparation
- Unpack all components and verify against the package contents list.
- Remove the protective film from the cooler's base.
- Clean the CPU surface with isopropyl alcohol to remove any old thermal paste or residue.
AMD Installation (AM5 / AM4)
Follow these steps for installing the cooler on AMD AM5 or AM4 motherboards:
- Remove the pre-installed retention brackets from the motherboard.
- Attach the AMD retention brackets to the cooler base using the provided screws.
- Apply a small amount of thermal paste to the center of the CPU's integrated heat spreader (IHS).
- Carefully place the cooler onto the CPU, aligning the screws with the motherboard's backplate.
- Tighten the screws in a diagonal (X-pattern) fashion until secure. Do not overtighten.
- Attach the MF120 Halo² fan to the heatsink using the included fan clips.
- Connect the 4-pin PWM fan cable to the CPU_FAN header on your motherboard.
- Connect the 3-pin ARGB cable to an available 3-pin ARGB header on your motherboard for lighting control. If no ARGB header is available, the fan will display a default rainbow spectrum.
Video Description: Official Cooler Master installation guide for the Hyper 212 Black on AMD platforms. This video demonstrates the step-by-step process of attaching the mounting brackets, applying thermal paste, securing the heatsink, and connecting the fan and ARGB cables.

Image Description: The Cooler Master Hyper 212 Halo Black heatsink with the fan removed, displaying the various mounting brackets for different CPU sockets, including Intel LGA 1700/1200/115X and AMD AM5/AM4.
Intel Installation (LGA 1851 / 1700 / 1200)
Follow these steps for installing the cooler on Intel LGA 1851, 1700, or 1200 motherboards:
- Position the backplate behind the motherboard, ensuring the correct holes are aligned for your specific LGA socket (1851, 1700, or 1200).
- Attach the Intel mounting brackets to the cooler base, adjusting the screw ends to match your LGA socket type (inward for LGA 1200/115X, outward for LGA 1700/1851).
- Apply a small amount of thermal paste to the center of the CPU's integrated heat spreader (IHS).
- Carefully place the cooler onto the CPU, aligning the screws with the backplate.
- Tighten the screws in a diagonal (X-pattern) fashion until secure. Do not overtighten.
- Attach the MF120 Halo² fan to the heatsink using the included fan clips.
- Connect the 4-pin PWM fan cable to the CPU_FAN header on your motherboard.
- Connect the 3-pin ARGB cable to an available 3-pin ARGB header on your motherboard for lighting control. If no ARGB header is available, the fan will display a default rainbow spectrum.
Video Description: Official Cooler Master installation guide for the Hyper 212 Black on Intel platforms. This video demonstrates the step-by-step process of attaching the mounting brackets, applying thermal paste, securing the heatsink, and connecting the fan and ARGB cables.

Image Description: Close-up view of the redesigned mounting brackets for both AMD (left) and Intel (right) platforms, highlighting their simplified design for easier installation.
Operation
Fan Speed Control (PWM)
The MF120 Halo² fan uses a 4-pin PWM connector, allowing your motherboard to dynamically adjust fan speed based on CPU temperature. This ensures optimal cooling performance while minimizing noise. You can configure fan curves through your motherboard's BIOS/UEFI settings or dedicated software.

Image Description: Graphic illustrating the dynamic PWM fan control, showing adjustable fan speeds from 650 to 1800 RPM to balance noise and airflow.
ARGB Lighting Control
The dual-loop ARGB lighting can be controlled via a compatible 3-pin ARGB header on your motherboard and its associated software (e.g., ASUS Aura Sync, MSI Mystic Light, Gigabyte RGB Fusion, ASRock Polychrome Sync). If no ARGB header is connected, the fan will automatically display a default rainbow spectrum.

Image Description: Close-up of the MF120 Halo² fan, showcasing its dual-loop ARGB lighting with vibrant colors.
Maintenance
Cleaning the Heatsink and Fan
Regular cleaning is essential for maintaining optimal cooling performance. Dust accumulation can impede airflow and reduce efficiency.
- Frequency: Clean every 3-6 months, or more frequently in dusty environments.
- Procedure:
- Power off your computer and unplug it from the wall.
- Carefully remove the fan from the heatsink by detaching the fan clips.
- Use compressed air to blow dust out of the heatsink fins. Hold the can upright to prevent propellant discharge.
- Wipe fan blades and frame with a soft, dry cloth. Avoid using liquid cleaners on electronic components.
- Reattach the fan to the heatsink.
Thermal Paste Reapplication
Thermal paste typically lasts for several years. However, if you notice increased CPU temperatures or if you remove the cooler for any reason, reapplication is recommended.
- Procedure:
- Carefully remove the CPU cooler from the motherboard.
- Use a lint-free cloth and isopropyl alcohol to gently wipe off all old thermal paste from both the CPU IHS and the cooler base.
- Apply a pea-sized dot of new thermal paste to the center of the CPU IHS.
- Reinstall the CPU cooler following the installation steps for your specific socket type.
Troubleshooting
Fan Not Spinning / No RGB Lighting
- Check Connections: Ensure the 4-pin PWM fan cable is securely connected to the CPU_FAN header on the motherboard. Verify the 3-pin ARGB cable is connected to a compatible ARGB header.
- BIOS Settings: Check your motherboard's BIOS/UEFI settings to ensure the CPU fan header is enabled and configured correctly (e.g., not set to "disabled" or "manual" with 0 RPM).
- Software: If using ARGB software, ensure it is installed and updated, and that the lighting effects are enabled.
High CPU Temperatures
- Thermal Paste: Ensure thermal paste was applied correctly and evenly. Reapply if necessary.
- Mounting Pressure: Verify the cooler is securely mounted and tightened evenly. Uneven pressure can lead to poor contact.
- Airflow: Check for proper airflow within your PC case. Ensure case fans are correctly oriented (intake/exhaust) and not obstructed.
- Dust Buildup: Clean the heatsink fins and fan blades as described in the Maintenance section.
Excessive Noise
- Fan Speed: Adjust fan speed curves in your motherboard's BIOS/UEFI or software to find a balance between cooling and noise.
- Obstructions: Ensure no cables or other components are touching the fan blades.
- Fan Condition: Check if the fan is damaged or has excessive wobble.
Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 4.88"L x 2.87"W x 6.06"H (124mm L x 73mm W x 154mm H) |
| Brand | Cooler Master |
| Model Number | RR-S4KK-20PA-R1 |
| Power Connector Type | 4-Pin PWM |
| Voltage | 12 Volts |
| Wattage | 3.6 watts |
| Cooling Method | Air (Fan) |
| Compatible Devices | Desktop CPUs (AMD Ryzen AM5/AM4, Intel LGA 1851/1700/1200) |
| Noise Level | 27 Decibels (Max) |
| Material | Aluminum (fins), Copper (heat pipes/base) |
| Maximum Rotational Speed | 2050 RPM |
| Air Flow Capacity | 51.88 Cubic Feet Per Minute (CFM) |
| Item Weight | 1.52 pounds |
Warranty & Support
Cooler Master products come with a limited warranty. For detailed warranty information, technical support, or to register your product, please visit the official Cooler Master website or contact their customer service. Keep your proof of purchase for warranty claims.
Official Cooler Master Website: www.coolermaster.com







