1. Introduction
The Jonsbo NF-1 and NF-2 are active memory module heat sinks designed to enhance the cooling performance of your RAM, ensuring stable operation and extending component lifespan. The ARGB versions feature addressable RGB lighting for aesthetic customization, synchronizable with compatible motherboards. The NF-1 model is suitable for ATX motherboards, while the NF-2 is designed for MATX motherboards.
2. Package Contents
Please verify that all components are present in your package:
- Jonsbo NF-1 or NF-2 Memory Module Active Heat Sink unit (depending on model purchased)
- Mounting bracket
- Two 50mm x 50mm x 20mm fans (pre-installed or separate, depending on model)
- Mounting screws and standoffs
- User Manual (this document)
For non-visual users: This image displays all individual parts of the NF-2 ARGB cooler, including the main heatsink, two cooling fans, a mounting bracket, and various screws and standoffs required for assembly and installation.
3. Specifications
| Feature | Specification |
|---|---|
| Model | NF-1 (ATX compatible), NF-2 (MATX compatible) |
| Color Options | Black, White |
| Dimensions | 146mm x 65mm x 28.1mm |
| Material | Aluminum |
| Thickness | 1mm |
| Weight | 0.5g (Note: This value may be a typo and should be verified with the manufacturer if accuracy is critical.) |
| Thermal Conductivity | 1 |
| Applicable To | Memory Modules (RAM) |
| RGB Support | 5v-3pin ARGB (for ARGB versions), No RGB (for standard versions) |
Fan Specifications
| Feature | Specification |
|---|---|
| Fan Dimensions | 50mm x 50mm x 20mm (x2) |
| Fan Speed | 600 - 3600 RPM (±10%) |
| Fan Air Flow | (1.30 - 9.11) CFM (MAX) per fan, total (1.30 - 9.11) * 2 CFM (MAX) |
| Fan Air Pressure | 0.17 - 1.6 mmH2O |
| Fan Noise Level | 22.4 dB(A) (MAX) |
| Fan MTTF (Mean Time To Failure) | ≥20000h @ 25℃ |
| Fan Connector | 4-Pin PWM |
| LED Connector | 3-Pin ARGB (for ARGB versions) |
| Rated Voltage (Fan) | 12V |
| Rated Voltage (LED) | 5V |
| Rated Current (Fan) | 0.06A |
| Rated Current (LED) | 0.24A |
| Power Consumption (Fan) | 0.72W (MAX) |
| Power Consumption (LED) | 1.2W |
For non-visual users: This image contains a table detailing the dimensions (146mm x 65mm x 28.1mm), material (aluminum), thickness (1mm), and weight (0.5g) of the NF-1 and NF-2 models. It also specifies compatibility for ATX (NF-1) and MATX (NF-2) motherboards.
For non-visual users: This image presents a table with detailed fan specifications, including fan dimensions (50x50x20mm), speed (600-3600 RPM), airflow (1.30-9.11 CFM x2), air pressure (0.17-1.6 mmH2O), noise level (22.4 dB(A) MAX), MTTF (≥20000h), connector types (4-Pin PWM for fan, 3-Pin ARGB for LED), rated voltages (12V for fan, 5V for LED), rated currents (0.06A for fan, 0.24A for LED), and power consumption (0.72W MAX for fan, 1.2W for LED).
4. Installation Guide
Before beginning installation, ensure your computer is powered off and unplugged from the wall outlet. It is recommended to wear an anti-static wrist strap to prevent damage to components.
4.1 Component Assembly
- If not pre-assembled, attach the two 50mm fans to the heatsink unit using the provided small screws. Ensure the fan cables are routed neatly.
- Secure the mounting bracket to the heatsink unit using the appropriate screws.
For non-visual users: This image illustrates the assembly process. Step 1 shows removing screws from the heatsink. Step 2 shows attaching the mounting bracket. Step 3 shows installing the fans onto the heatsink. Step 4 shows securing the entire heatsink assembly.
4.2 Motherboard Installation
- Locate the appropriate mounting holes on your motherboard, typically near the RAM slots.
- Align the assembled Jonsbo NF-1/NF-2 unit with the mounting holes.
- Use the provided standoffs and screws to secure the heatsink unit to the motherboard. Ensure it is firmly attached but do not overtighten.
- Verify that the heatsink does not interfere with other components such as the CPU cooler or graphics card. Refer to compatibility diagrams below.
For non-visual users: This diagram illustrates the necessary clearance between the installed memory cooler and a typical CPU cooler, highlighting potential interference points.
For non-visual users: This diagram shows the clearance required between the memory cooler and a graphics card, indicating how the cooler sits relative to the GPU slot.
4.3 Wiring Connections
For proper functionality, connect the fan and ARGB cables to your motherboard or a compatible controller.
- Fan Power (PWM): Connect the 4-Pin PWM fan connector from the Jonsbo NF-1/NF-2 to an available 4-Pin fan header on your motherboard (e.g., "CPU_FAN", "SYS_FAN"). This allows for fan speed control.
- ARGB Lighting: For ARGB versions, connect the 3-Pin ARGB connector to a compatible 5V 3-Pin ARGB header on your motherboard (e.g., "D_LED", "ARGB_HEADER"). Do NOT connect to a 12V 4-Pin RGB header, as this will damage the LEDs.
For non-visual users: This diagram illustrates the correct connection points for the fan's 4-pin PWM cable and the ARGB LED's 3-pin cable to a motherboard. It clearly distinguishes between the 5V ARGB header and a standard 12V RGB header, emphasizing the correct choice for ARGB functionality.
5. Operation
Once installed and connected, the Jonsbo NF-1/NF-2 will operate automatically upon system startup.
- Fan Control: The 4-Pin PWM connection allows your motherboard to control the fan speed based on system temperature, typically RAM temperature if supported, or a general system temperature. You can usually adjust fan curves in your motherboard's BIOS/UEFI settings or through motherboard-specific software.
- ARGB Lighting Control: For ARGB versions, the 5V 3-Pin ARGB connection enables synchronization with your motherboard's lighting software (e.g., ASUS Aura Sync, MSI Mystic Light Sync, Gigabyte RGB Fusion, ASRock Polychrome Sync). This allows you to customize lighting effects, colors, and patterns. Ensure your motherboard's ARGB software is installed and up-to-date.
6. Maintenance
Regular maintenance helps ensure optimal performance and longevity of your Jonsbo NF-1/NF-2 heat sink.
- Dust Cleaning: Periodically (e.g., every 3-6 months), power off your computer and unplug it. Use compressed air to gently blow dust out of the fan blades and heatsink fins. Hold the fan blades to prevent them from spinning rapidly during cleaning, which can damage the bearings.
- Visual Inspection: Check for any loose cables or mounting screws. Ensure the fans are spinning freely and quietly.
7. Troubleshooting
If you encounter issues with your Jonsbo NF-1/NF-2, refer to the following common problems and solutions:
- Fans Not Spinning:
- Ensure the 4-Pin PWM connector is securely plugged into a motherboard fan header.
- Check your motherboard's BIOS/UEFI settings to ensure the fan header is enabled and configured correctly (e.g., not set to "disabled" or "manual 0%").
- Test the fan by connecting it to a different, known-working fan header if available.
- ARGB Lights Not Working (ARGB versions only):
- Verify the 3-Pin ARGB connector is correctly plugged into a 5V 3-Pin ARGB header on your motherboard. Double-check that it is not connected to a 12V 4-Pin RGB header.
- Ensure your motherboard's ARGB software is installed and running.
- Check the software settings to confirm the ARGB header is enabled and lighting effects are selected.
- If using an external ARGB controller, ensure it is powered and configured correctly.
- Poor Cooling Performance:
- Ensure the fans are spinning at an appropriate speed. Adjust fan curves in BIOS/UEFI if necessary.
- Clean any dust accumulation from the heatsink fins and fan blades.
- Verify that there is adequate airflow within your PC case.
8. User Tips
- Compatibility Check: Always check the dimensions of the NF-1/NF-2 against your CPU cooler and graphics card to ensure sufficient clearance before purchase and installation. The NF-1 is generally for ATX boards, and NF-2 for MATX, but physical space can vary.
- Cable Management: Route the fan and ARGB cables carefully to avoid interfering with other components or airflow.
- ARGB Synchronization: For the best aesthetic experience, ensure your motherboard's ARGB software is properly configured to synchronize the cooler's lighting with other ARGB components in your system.
9. Warranty and Support
Jonsbo products are manufactured to high standards and undergo rigorous quality control. For warranty information, technical support, or service inquiries, please contact your retailer or the official Jonsbo support channels. Keep your proof of purchase for warranty claims.