1. Introduction and Overview
The ARCTIC Freezer 4U-M Ampere is a high-performance CPU air cooler designed for server environments. It provides efficient cooling for a range of processors, including Ampere Altra and Altra Max, as well as various AMD and Intel server CPUs. This cooler is engineered for continuous operation and features a compact design to ensure broad compatibility within 4U server cases and with dual-CPU motherboards.
Key features include:
- Ampere Ready: Includes mounting kit for Ampere Altra and Altra Max processors.
- Compact Design: Optimized for 4U server cases and dual-CPU motherboards, ensuring RAM slot clearance.
- High-Performance Cooling: Equipped with two custom 120 mm fans in a push-pull configuration with PWM control.
- Durable Construction: Fans feature double ball bearings for extended lifespan and 24/7 operation.
- Easy Installation: Comes with pre-installed mounting brackets and thermal paste.
Image: The ARCTIC Freezer 4U-M Ampere CPU Cooler, showcasing its compact design and dual fan setup.
2. What's in the Box
The ARCTIC Freezer 4U-M Ampere package includes the following components:
- ARCTIC Freezer 4U-M (Rev. 2) CPU Cooler with Ampere Clips
- Pre-applied thermal paste (ARCTIC MX-6)
- Pre-installed mounting brackets
Image: A close-up of the cooler's heat pipes and the included ARCTIC MX-6 thermal paste syringe.
3. Setup and Installation
The Freezer 4U-M is designed for straightforward installation. Follow these general steps for mounting the cooler onto your CPU.
3.1 Compatibility
This cooler is compatible with a variety of CPU sockets, including:
- AMD: SP6, SP3, sTR5, TR4, sWRX8, sTRX4
- Intel: LGA4677, LGA4189, LGA4710
- Ampere: LGA4926 (Mounting Kit for Ampere Altra and Altra Max Processors included)
Image: Visual representation of compatible CPU sockets including AMD EPYC (SP6, SP3), Intel Xeon (LGA4677, LGA4189, LGA4710), AMD Ryzen Threadripper (sTR5, TR4, sWRX8, sTRX4), and Ampere Altra Max (LGA4926).
3.2 Installation Steps
- Prepare CPU: Ensure your CPU is correctly seated in its socket. The cooler comes with pre-applied thermal paste; if you prefer to use your own, clean the CPU surface thoroughly before application.
- Position Cooler: Align the cooler's pre-installed mounting brackets with the CPU socket's mounting points.
- Secure Cooler: Gently press down and secure the cooler using the provided screws. Tighten screws evenly in a cross pattern to ensure balanced pressure. Avoid overtightening.
- Connect Fans: Connect the 4-pin PWM fan cables to the appropriate CPU fan headers on your motherboard.
Image: The ARCTIC Freezer 4U-M Ampere installed on a motherboard within a server chassis, demonstrating its compact fit and optimal compatibility with surrounding components.
4. Operating Instructions
The ARCTIC Freezer 4U-M Ampere is designed for optimal thermal performance and quiet operation in server environments.
4.1 Fan Control
The two 120 mm fans support Pulse Width Modulation (PWM) control. This allows your motherboard or system software to dynamically adjust fan speed based on CPU temperature, optimizing cooling performance and noise levels. Ensure the fans are connected to PWM-compatible headers for this functionality.
Image: Diagram illustrating the push-pull fan configuration of the ARCTIC Freezer 4U-M Ampere, showing airflow direction for efficient heat dissipation.
4.2 Continuous Operation
The fans are equipped with double ball bearings, engineered for continuous 24/7 operation, making them suitable for demanding server applications.
Image: Cross-section diagram of a fan, highlighting the impeller, dual ball bearings, and steel shaft, indicating a design optimized for continuous operation.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your ARCTIC Freezer 4U-M Ampere CPU cooler.
- Dust Removal: Periodically inspect the heatsink fins and fan blades for dust accumulation. Use compressed air or a soft brush to gently remove dust. Ensure the system is powered off before cleaning.
- Fan Inspection: Check fan blades for any obstructions or damage. The double ball bearings are designed for durability, but ensure free rotation.
- Thermal Paste: While the pre-applied thermal paste offers long-term performance, if you ever remove the cooler, it is recommended to clean off old thermal paste and apply a fresh layer before reinstallation.
6. Troubleshooting
If you encounter issues with your ARCTIC Freezer 4U-M Ampere, consider the following troubleshooting steps:
- High CPU Temperatures:
- Verify that the cooler is securely mounted and making proper contact with the CPU.
- Check if thermal paste was applied correctly and evenly.
- Ensure fans are spinning and connected to the correct motherboard headers.
- Confirm adequate airflow within the server chassis.
- Fan Noise:
- Check for dust buildup on fan blades.
- Ensure fan cables are not obstructing fan rotation.
- Adjust fan speed settings in your motherboard's BIOS/UEFI or system software.
- Mounting Difficulties / Component Interference:
- Some motherboard designs (e.g., with tall VRM heatsinks) may require careful positioning or minor adjustments.
- Ensure the cooler is compatible with your specific motherboard model and server case dimensions.
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | ACFRE00171A |
| Product Dimensions (L x W x H) | 6.14" x 4.88" x 5.71" |
| Cooling Method | Air |
| Fan Size | 2 x 120 mm |
| Maximum Rotational Speed | 2300 RPM |
| Air Flow Capacity | 72 Cubic Feet Per Minute |
| Power Connector Type | 4-Pin PWM |
| Voltage | 12 Volts |
| Wattage | 1.44 watts |
| Material | Metal, Plastic, Rubber |
| Item Weight | 2.81 pounds |
| Compatible Devices | Desktop (Server CPUs) |
| UPC | 840033402699 |
8. Warranty and Support
For warranty information or technical support, please refer to the official ARCTIC website or contact ARCTIC customer service directly. Keep your proof of purchase for warranty claims.
ARCTIC Official Website: www.arctic.ac
