1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Thermalright Assassin X 120 R SE CPU Air Cooler. This high-performance air cooler is designed to efficiently dissipate heat from your CPU, ensuring stable and optimal system performance. It features 4 heat pipes and a TL-C12C PWM quiet fan with an S-FDB bearing, offering effective cooling with low noise levels. The cooler is compatible with various Intel and AMD platforms.
2. Safety Information
Please read and understand all safety instructions before installation and use. Failure to do so may result in damage to the product or other components.
- Ensure your computer system is powered off and unplugged from the wall outlet before beginning installation.
- Handle components with care to avoid damage.
- Keep thermal paste away from skin and eyes. In case of contact, rinse thoroughly with water.
- Do not attempt to modify the cooler or its components.
- If you are unsure about any step, consult a qualified technician or refer to online resources.
3. Package Contents
Verify that all items listed below are present in your package:
- Thermalright Assassin X 120 R SE Heatsink
- TL-C12C PWM Fan (120mm)
- Intel Mounting Kit (LGA1700/115X/1200)
- AMD Mounting Kit (AM4/AM5)
- Fan Clips
- Thermal Compound
- Installation Manual (this document)
4. Setup and Installation
The installation process involves mounting the heatsink and fan onto your CPU. Ensure you have the correct mounting hardware for your CPU socket type (Intel LGA1700/115X/1200 or AMD AM4/AM5).
4.1. Installation Video Guide
For a visual guide, please refer to the official installation video below. While the video title mentions an ARGB series cooler, the core installation steps for the heatsink and fan are identical for the Assassin X 120 R SE model.
4.2. Step-by-Step Installation (Intel LGA1700 Example)
Follow these steps for installing the cooler on an Intel LGA1700 motherboard. Steps for other sockets will be similar, using the appropriate mounting hardware.
- Prepare Motherboard: Place the Intel 1700 backplate on the backside of your motherboard, aligning it with the CPU socket holes.
- Install Standoffs: From the front side of the motherboard, install the four Intel 1700 plastic standoffs into the backplate.
- Attach Mounting Brackets: Secure the two metal mounting brackets onto the plastic standoffs using the provided Intel screws. Ensure the brackets are oriented correctly according to the LGA1700 mounting holes. Tighten them evenly.
- Apply Thermal Compound: Apply a small amount of thermal compound (thermal paste) to the center of your CPU's Integrated Heat Spreader (IHS). Use the included spreader or a similar tool to spread it into a thin, even layer across the entire surface.
- Position Heatsink: Remove the protective plastic sticker from the heatsink base. Carefully place the heatsink onto the CPU, aligning the mounting nuts on the heatsink with the screws on the metal brackets.
- Secure Heatsink: Using a screwdriver, alternately tighten the nuts on both sides of the heatsink until it is firmly secured. Do not overtighten.
- Install Fan Clips: Attach the fan clips to the TL-C12C PWM fan.
- Mount Fan: Using the fan clips, attach the fan to the heatsink. Ensure the fan is oriented to blow air through the heatsink fins towards the rear or top of your computer case.
- Connect Fan Cable: Connect the fan's 4-pin PWM cable to the CPU_FAN header on your motherboard.
- Connect Lighting Cable (if applicable): If your fan or cooler has RGB lighting (this model does not feature RGB), connect the lighting signal cable to the appropriate +5V ARGB 3PIN lighting socket on your motherboard.
5. Operation
Once installed, the Thermalright Assassin X 120 R SE CPU Air Cooler operates automatically. The TL-C12C PWM fan's speed is controlled by your motherboard based on CPU temperature, ensuring optimal cooling performance while minimizing noise.
- Ensure the fan cable is securely connected to the CPU_FAN header.
- Monitor CPU temperatures using system monitoring software to confirm proper cooling.
- Adjust fan curves in your motherboard's BIOS/UEFI settings if you wish to customize fan behavior (e.g., for quieter operation or maximum cooling).
6. Maintenance
Regular maintenance helps ensure the longevity and optimal performance of your CPU cooler.
- Dust Cleaning: Periodically clean dust from the heatsink fins and fan blades using compressed air or a soft brush. Ensure the fan is not spinning during cleaning.
- Thermal Paste: The thermal compound typically lasts for several years. If you notice a significant increase in CPU temperatures, consider reapplying fresh thermal paste. This involves carefully removing the heatsink, cleaning off old thermal paste from both the CPU and heatsink base, and applying new thermal paste.
- Fan Inspection: Check the fan for any signs of wear or unusual noise. The S-FDB bearing is designed for long service life, but extreme conditions can affect it.
7. Troubleshooting
If you encounter issues with your CPU cooler, refer to the following common problems and solutions:
- Fan Not Spinning:
- Check if the fan's 4-pin PWM cable is securely connected to the CPU_FAN header on the motherboard.
- Verify fan settings in your motherboard's BIOS/UEFI.
- Ensure the fan is not obstructed by cables or other components.
- High CPU Temperatures:
- Confirm the heatsink is securely mounted and making good contact with the CPU.
- Check if thermal paste was applied correctly and evenly. Reapply if necessary.
- Ensure adequate airflow within your computer case.
- Clean any dust accumulation on the heatsink fins and fan blades.
- Excessive Noise:
- Check for loose fan clips or vibrations.
- Adjust fan speed settings in your motherboard's BIOS/UEFI to a quieter profile.
- Ensure no cables are touching the fan blades.
8. Specifications
Detailed technical specifications for the Thermalright Assassin X 120 R SE CPU Air Cooler:
| Feature | Specification |
|---|---|
| CPU Cooler Dimensions | 125(L) x 71(W) x 148(H) mm (4.92 x 2.8 x 5.83 inch) |
| Product Weight | 0.645 kg (1.42 lb) |
| Heat Sink Material | Aluminum fins, Pure Copper Heat Pipes and Base, Nickel Plated |
| Heat Pipes | 4 x 6mm (AGHP technique) |
| Fan Model | TL-C12C |
| Fan Dimensions | 120 x 120 x 25 mm (4.72 x 4.72 x 0.98 inches) |
| Fan Speed (RPM) | 1550 RPM ±10% |
| Air Flow | 66.17 CFM (MAX) |
| Noise Level | ≤25.6 dB(A) |
| Power Connector | 4-Pin PWM |
| Voltage | 12V DC |
| Fan Bearing | S-FDB Bearing |
| Compatibility | Intel: LGA115X/1200/1700/17XX, AMD: AM4/AM5 |
9. Warranty and Support
Thermalright products come with a manufacturer's warranty. For specific warranty terms, duration, and to register your product, please visit the official Thermalright website or contact your local retailer. For technical support, troubleshooting assistance beyond this manual, or inquiries about replacement parts, please contact Thermalright customer service through their official channels.
Official Website: www.thermalright.com
