Product Overview
The Enermax Liqmax III 240 White A-RGB AIO CPU Liquid Cooler is an all-in-one liquid cooling solution designed for both Intel and AMD CPU platforms. It features addressable RGB lighting that can synchronize with popular motherboard software such as ASUS Aura Sync, Gigabyte RGB FUSION, MSI Mystic Light Sync, ASRock Polychrome, and Razer Chroma, offering 16.8 million colors and dynamic lighting effects. Its dual-chamber water block design, combined with Central Coolant Inlet (CCI) structure and Shunt-Channel Technology (SCT), ensures efficient heat transfer by targeting the hottest spots and shortening the coolant path. The cooler is equipped with dual-convex blade fans engineered to generate high air pressure and volume for optimal cooling performance.
Package Contents
Before beginning installation, please verify that all components are present in the package:
- 1x 240mm Radiator
- 2x 120mm ARGB PWM Fans
- 1x CPU Water Block with Integrated Pump
- Mounting Hardware for Intel Sockets (LGA2066, LGA2011-v3, LGA2011, LGA1700, LGA1200, LGA1151, LGA1150, LGA1156, LGA1155)
- Mounting Hardware for AMD Sockets (AM5, AM4, AM3+, AM3, AM2+, AM2, FM2+, FM2, FM1)
- Thermal Paste
- User Manual (this document)
Setup and Installation
For detailed step-by-step installation instructions, please refer to the official Installation Manual (PDF) provided by Enermax. Below is a general overview and key considerations.
Pre-Installation
- Ensure your system is powered off and unplugged.
- Identify your CPU socket type (Intel or AMD) to select the correct mounting hardware.
- Prepare your PC case for radiator mounting (top or front, depending on case compatibility).
AMD Installation Overview
For AMD platforms, the installation typically utilizes the existing AMD stock backplate that comes with your motherboard. Secure the appropriate AMD mounting brackets to the water block, then align and secure the cooler to the CPU socket using the provided standoffs and screws.

Figure 1: Diagram illustrating the AMD CPU cooler installation process, showing the water block, mounting brackets, and the use of the AMD stock backplate.
Intel Installation Overview
For Intel platforms, install the universal backplate behind the motherboard, then attach the correct Intel mounting brackets to the water block. Apply thermal paste to the CPU, then carefully place the water block onto the CPU and secure it with the provided screws.
Fan and Radiator Mounting
Mount the two 120mm ARGB PWM fans to the 240mm radiator using the long screws. Ensure the fans are oriented to push or pull air through the radiator in your desired airflow configuration. Then, mount the assembled radiator and fan unit to your PC case.

Figure 2: The Enermax Liqmax III 240 White A-RGB AIO CPU Liquid Cooler, showcasing the radiator, two ARGB fans, and the water block.
Cable Connections
- Connect the pump power cable to the CPU_FAN or AIO_PUMP header on your motherboard.
- Connect the fan PWM cables to the CPU_FAN or SYS_FAN headers on your motherboard.
- Connect the ARGB lighting cables from the fans and water block to a 3-pin 5V ARGB header on your motherboard. Ensure correct pin alignment (5V-D-G) to prevent damage.

Figure 3: Illustration of the 3-pin 5V ARGB header connection on a motherboard, essential for synchronizing the cooler's lighting effects.
Operating Instructions
Fan Control and Performance
The included 120mm ARGB PWM fans operate within a speed range of 500 to 1600 RPM. This Pulse Width Modulation (PWM) control allows your motherboard to dynamically adjust fan speed based on CPU temperature, providing optimal cooling performance when needed and quieter operation at idle. The dual-convex blade design enhances both air pressure (max. 1.98mmH2O) and high-volume airflow (max. 72.1CFM).

Figure 4: Close-up view of the Enermax HF120 ARGB PWM fans, highlighting their design for balanced performance and quietness.

Figure 5: Diagram illustrating the powerful airflow generated by the dual-convex blade design, showing air pressure and volume metrics.
ARGB Lighting Synchronization
Once connected to a compatible 3-pin 5V ARGB motherboard header, the cooler's lighting can be controlled and synchronized using your motherboard's RGB software (e.g., ASUS Aura Sync, Gigabyte RGB FUSION, MSI Mystic Light Sync, ASRock Polychrome). This allows for customization of colors and dynamic lighting effects across your system.
Maintenance
Regular maintenance helps ensure the longevity and optimal performance of your liquid cooler.
- Dust Cleaning: Periodically clean dust from the radiator fins and fan blades using compressed air. Accumulated dust can impede airflow and reduce cooling efficiency.
- Cable Management: Ensure all cables are neatly routed and not obstructing airflow within the case.
- System Monitoring: Use system monitoring software to regularly check CPU temperatures and pump/fan speeds to ensure they are operating within normal parameters.
- Coolant Check: As this is a closed-loop AIO system, no coolant refilling is typically required. However, be vigilant for any signs of leaks around the tubing or water block.
Troubleshooting
If you encounter issues with your Enermax Liqmax III 240 cooler, consider the following troubleshooting steps:
- No Power/Fans Not Spinning:
- Check all power connections to the pump and fans. Ensure they are securely plugged into the correct motherboard headers.
- Verify that the CPU_FAN header is enabled in your motherboard's BIOS/UEFI settings.
- High CPU Temperatures:
- Ensure the water block is making proper contact with the CPU. Re-seat if necessary, applying fresh thermal paste.
- Check fan orientation on the radiator for optimal airflow.
- Clean any dust buildup on the radiator fins.
- Verify pump operation (listen for a faint hum or check RPM in monitoring software).
- ARGB Lighting Not Working/Incorrect Colors:
- Confirm the ARGB cable is connected to a 3-pin 5V ARGB header, not a 4-pin 12V RGB header. Connecting to a 12V header can damage the LEDs.
- Ensure the ARGB header is enabled in your motherboard's BIOS/UEFI.
- Use your motherboard's RGB software to control the lighting. Update the software if issues persist.
- Excessive Noise:
- Check fan speeds; higher RPMs will generate more noise. Adjust fan curves in BIOS/software if desired.
- Ensure no cables are interfering with fan blades.
- A gurgling sound might indicate air bubbles in the loop. Gently tilt your PC case to help move air bubbles to the pump.

Figure 6: Chart illustrating the low noise level of the cooler, optimized for quiet operation.
Specifications
| Feature | Specification |
|---|---|
| Model Number | ELC-LMT240-W-ARGB |
| Radiator Size | 240mm |
| Fan Size | 120mm |
| Fan Type | ARGB PWM Fan |
| Fan Speed | 500 - 1600 RPM (Max. Rotational Speed) |
| Air Flow Capacity | 72.1 CFM (Cubic Feet Per Minute) |
| Air Pressure | 1.98 mmH2O |
| Noise Level | 14 dB |
| Cooling Method | Water |
| Material | Aluminum |
| Voltage | 5 Volts |
| Power Connector Type | 4-Pin (PWM) |
| Compatible Devices | Desktop |
| Product Dimensions (L x W x H) | 10.79 x 2.09 x 4.72 inches (27.4 x 5.3 x 12 cm) |
| Weight | 3.97 Pounds (1.8 kg) |
| Intel CPU Socket Support | LGA2066, LGA2011-v3, LGA2011, LGA1700, LGA1200, LGA1151, LGA1150, LGA1156, LGA1155 |
| AMD CPU Socket Support | AM5, AM4, AM3+, AM3, AM2+, AM2, FM2+, FM2, FM1 |
Warranty Information
The Enermax Liqmax III 240 White A-RGB AIO CPU Liquid Cooler comes with a 5-Year Warranty. This warranty covers defects in materials and workmanship under normal use. For specific terms, conditions, and to initiate a warranty claim, please refer to the official Enermax website or contact Enermax customer support directly.
Support and Contact
For further assistance, technical support, or inquiries regarding your Enermax product, please visit the official Enermax website or their Amazon Brand Store:
- Enermax Official Website: www.enermaxusa.com (Please note: URL is an example, refer to product packaging or official sources for exact URL)
- Enermax Amazon Store: Visit Enermax Store on Amazon
You may also find additional resources and FAQs on their support pages.
Official Product Videos
No official product videos with 'Seller' as creator type were found in the provided data to embed directly into this manual. Please refer to the Enermax official website or their YouTube channel for any available product videos.





