Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Cooler Master MasterLiquid LC240E RGB Close-Loop AIO CPU Liquid Cooler. This liquid cooling system is designed to deliver efficient cooling performance for your CPU, featuring a 240mm radiator, a dual-chamber RGB pump, and dual MF120R RGB fans. It is compatible with both AMD Ryzen and Intel LGA1151 and other specified sockets. Please read this manual thoroughly before installation and use to ensure proper functionality and longevity of your product.
Image: The Cooler Master MasterLiquid LC240E RGB AIO CPU Liquid Cooler, showcasing its 240mm radiator, dual RGB fans, and pump unit with braided tubing. The fans are illuminated with purple RGB lighting.
What's in the Box
Upon unboxing your Cooler Master MasterLiquid LC240E RGB, please verify that all components are present:
- 1 x AIO CPU Cooler (comprising 240mm radiator, pump, and pre-attached tubing)
- 2 x MF120R RGB Fans
- Mounting hardware for Intel and AMD sockets
- RGB Controller (C10L)
- 1-to-3 RGB Splitter Cable
- Thermal Paste
- User Manual (this document)
Setup and Installation
Proper installation is crucial for optimal cooling performance. Follow these steps carefully.
1. Prepare Your System
- Power Off: Ensure your computer is completely powered off and unplugged from the wall outlet.
- Access: Open your computer case to access the motherboard and CPU area.
- Clean CPU: If replacing an existing cooler, carefully remove it and clean any old thermal paste from the CPU's integrated heat spreader (IHS) using isopropyl alcohol and a lint-free cloth.
2. Install Mounting Hardware
The mounting process varies slightly between Intel and AMD platforms. Refer to the specific instructions provided with the mounting kit for your CPU socket type (Intel: LGA2066, LGA2011 v3, LGA2011, LGA1151, LGA1150, LGA1156, LGA1155, LGA1366; AMD: AM4, AM3+, AM3, AM2+, AM2, FM2+, FM2, FM1).
- Attach the correct backplate to the rear of your motherboard.
- Secure the standoffs through the motherboard's CPU mounting holes.
3. Apply Thermal Paste
Apply a small amount of thermal paste (pea-sized dot) to the center of your CPU's IHS. Do not spread it; the pressure from the pump will distribute it evenly.
4. Mount the Pump
- Carefully align the pump block with the standoffs on the motherboard.
- Gently lower the pump onto the CPU, ensuring even contact.
- Secure the pump with the provided thumb screws or nuts, tightening them in a diagonal pattern until snug. Do not overtighten.
Image: A close-up view of the Cooler Master's dual dissipation pump, highlighting its low-profile dual chamber design which enhances performance compared to single-chamber pump designs.
5. Install the Radiator and Fans
- Attach the two MF120R RGB fans to the 240mm radiator using the longer screws provided. Ensure the fan airflow direction is appropriate for your case (typically exhausting air out or pulling air in).
- Mount the radiator assembly to an available 240mm fan mount location in your PC case (e.g., top, front, or rear). Use the shorter screws to secure the radiator to the case.
Image: A detailed view of the Cooler Master's low-resistance 240mm radiator, designed to maximize cooling surface area for efficient heat dissipation.
6. Connect Cables
- Pump Power: Connect the pump's 3-pin power cable to a CPU_FAN or AIO_PUMP header on your motherboard.
- Fan Power: Connect the two MF120R RGB fans to available fan headers on your motherboard, or use a fan splitter if necessary.
- RGB Lighting:
- Connect the RGB cables from the pump and fans to the included 1-to-3 RGB splitter cable.
- Connect the splitter cable to the wired C10L RGB controller.
- Alternatively, if your motherboard supports RGB sync (e.g., ASUS Aura Sync, ASRock RGB LED, GIGABYTE RGB Fusion, MSI Mystic Light Sync), you can connect the RGB splitter directly to your motherboard's 4-pin RGB header (12VGRB) for software control.
Image: The included 1-to-3 RGB splitter cable, which allows extension of RGB control to multiple devices from a single cable.
Image: The wired C10L RGB controller, used for adjusting RGB lighting effects, brightness levels, and colors without requiring software.
Image: Illustrates the Cooler Master MasterLiquid LC240E RGB's compatibility with various motherboard RGB sync technologies, including ASUS Aura Sync, ASRock RGB LED, GIGABYTE RGB Fusion, and MSI Mystic Light Sync.
Operating Instructions
Once installed, the Cooler Master MasterLiquid LC240E RGB operates automatically to cool your CPU.
Fan and Pump Operation
- The pump and fans will adjust their speed based on CPU temperature, controlled by your motherboard's fan headers and BIOS settings.
- For optimal performance, ensure the CPU_FAN header is set to PWM mode in your motherboard's BIOS, allowing for dynamic speed control.
- The dual 120mm fans are designed for silent operation, with a noise level of approximately 31.5 dB at maximum speed.
Image: Depicts the Cooler Master fans operating quietly, with an indicator showing noise levels below 15 dBA, emphasizing the "Library Quiet" design.
RGB Lighting Control
- Using the C10L RGB Controller:
The included C10L controller allows you to customize the RGB lighting without software. It typically features buttons to cycle through:
- 5 brightness levels
- 6 lighting modes (e.g., static, breathing, color cycle)
- 7 colors
- Using Motherboard Software:
If connected to a compatible motherboard RGB header, you can control the lighting effects through your motherboard's proprietary RGB software (e.g., ASUS Aura Sync, MSI Mystic Light Sync). Refer to your motherboard's manual for specific software instructions.
Maintenance
The Cooler Master MasterLiquid LC240E RGB is a closed-loop system and requires minimal maintenance.
- Dust Cleaning: Periodically clean dust from the radiator fins and fan blades using compressed air or a soft brush. Excessive dust can impede airflow and reduce cooling efficiency.
- Tubing Inspection: Occasionally inspect the sleeved FEP tubing for any signs of kinks or damage. The reinforced tubing is designed to prevent kinks and ensure smooth liquid flow.
- No Refilling: Do not attempt to open or refill the liquid cooler. It is a sealed unit and opening it will void the warranty and may cause damage or leaks.
Troubleshooting
If you encounter issues with your liquid cooler, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| High CPU Temperatures |
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| No RGB Lighting |
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| Unusual Noise from Cooler |
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Specifications
Detailed technical specifications for the Cooler Master MasterLiquid LC240E RGB:
| Feature | Detail |
|---|---|
| Model Number | MLA-D24M-A18PC-R1 |
| Product Dimensions (L x W x H) | 10.9" x 4.7" x 1.1" (27.69 cm x 11.94 cm x 2.79 cm) |
| Item Weight | 2.51 pounds (1.14 kg) |
| Cooling Method | Liquid (All-in-One Closed Loop) |
| Radiator Size | 240mm |
| Fan Type | 2 x MF120R RGB Fans |
| Air Flow Capacity | 66.7 Cubic Feet Per Minute (CFM) |
| Noise Level | 31.5 dB (max) |
| Pump Design | Dual Chamber Pump |
| Tubing Material | Reinforced FEP Tubing (Sleeved) |
| Power Connector Type | 3-Pin (Pump) |
| Voltage | 12 Volts |
| Wattage | 50 Watts |
| Material | Polycarbonate (housing) |
| Compatible CPU Sockets | Intel: LGA2066, LGA2011 v3, LGA2011, LGA1151, LGA1150, LGA1156, LGA1155, LGA1366 AMD: AM4, AM3+, AM3, AM2+, AM2, FM2+, FM2, FM1 |
| UPC | 884102045561 |
Warranty and Support
For warranty information and technical support, please refer to the official Cooler Master website or the warranty card included with your product.
- Official User Manual (PDF): A digital version of the user manual can be found at: Cooler Master MasterLiquid LC240E User Manual PDF
- Cooler Master Support: Visit the Cooler Master official website for the latest drivers, FAQs, and customer support contact information.