ASUS ROG Strix LC II 240 AIO Liquid CPU Cooler Instruction Manual

1. Product Overview

The ASUS ROG Strix LC II 240 is an all-in-one liquid CPU cooler designed to provide efficient cooling for high-performance processors. It features a closed-loop design, a 240mm radiator, and two 120mm 4-pin PWM fans. The pump head includes an individually addressable RGB lighting element with an NCVM coating, enhancing the aesthetic appeal of your system.

Key Features:

• Seventh Gen Asetek pump for exceptional cooling and minimal noise.
• ROG-designed radiator fans optimized for airflow and static pressure.
• Individually addressable RGB and NCVM-coating pump cover for modern aesthetics.
• Designed to complement ROG motherboards.
• Reinforced, sleeved tubing for increased durability.
• CPU Socket Support: AMD AM4, TR4; Intel LGA 1700, 1200, 115x, 1366, 2011, 2011-3, 2066.

Figure 1: ASUS ROG Strix LC II 240 Liquid CPU Cooler with labeled components including the illuminated ROG logo, 380mm sleeved rubber tubing, and ROG radiator fans.

2. Setup and Installation

Package Contents:

• ROG Strix LC II 240 Liquid Cooler (Thermal Compound Pre-applied)
• 2 x 120mm ROG Radiator Fans
• Fan Cable for Fan Connection
• ARGB Cable for Lighting Control
• USB Cable for Software Control
• Accessory Pack of Screws and Brackets
• Quick Start Guide
• ROG Sticker

Figure 2: All components included in the ASUS ROG Strix LC II 240 retail package.

Compatibility:

The ROG Strix LC II 240 cooler supports a wide range of CPU sockets:

• Intel: LGA 1700, 1200, 115x, 1366, 2011, 2011-3, 2066
• AMD: AM4, TR4

Installation Steps:

1. Prepare the Motherboard: Install the appropriate mounting brackets for your CPU socket type onto the pump block.
2. Mount Radiator and Fans: Attach the two 120mm ROG radiator fans to the 240mm radiator using the provided screws. Ensure the fans are oriented for optimal airflow (typically pushing air through the radiator).
3. Install Radiator: Secure the assembled radiator and fans to your PC case in the desired location (e.g., top, front, or rear). Ensure sufficient clearance.
4. Mount Pump Block: Carefully place the pump block onto your CPU, aligning it with the mounting holes. Secure it with the provided screws, tightening them in a diagonal pattern until snug. The cooler comes with pre-applied thermal compound, so no additional application is needed unless reapplying.
5. Connect Cables:
   • Connect the fan cables to the fan headers on the pump block or directly to your motherboard's CPU_FAN/CHA_FAN headers.
   • Connect the ARGB cable from the pump block to an available addressable RGB header on your motherboard.
   • Connect the USB cable from the pump block to an internal USB 2.0 header on your motherboard for software control.
   • Connect the pump power cable to the dedicated AIO_PUMP or CPU_OPT header on your motherboard.
6. Cable Management: Route all cables neatly to ensure proper airflow and a clean build.

3. Operation

Pump and Fan Control:

The ROG Strix LC II 240 utilizes a 7th generation Asetek pump, known for its quiet operation and efficient liquid circulation. The two 120mm fans are 4-pin PWM controlled, allowing for precise speed adjustments based on CPU temperature. This ensures optimal cooling performance while minimizing noise levels. The cooler's noise level is rated at 37.6 Decibels.

Figure 3: Illustration of the optimized fan design, highlighting 4-pin PWM control, 81 CFM airflow, and 5.00mmH2O static pressure.

RGB Lighting and Customization:

The pump head features customizable Aura Sync RGB LED lighting. This allows you to synchronize the cooler's lighting effects with other Aura Sync compatible components in your system, creating a unified aesthetic. The lighting can be controlled via ASUS's software.

Figure 4: Close-up of the customizable Aura Sync RGB LED pump head, showcasing its vibrant lighting capabilities.

4. Maintenance

Regular maintenance helps ensure the longevity and optimal performance of your liquid CPU cooler.

• Dust Removal: Periodically clean the radiator fins and fan blades to prevent dust buildup, which can impede airflow and reduce cooling efficiency. Use compressed air or a soft brush.
• Inspect Tubing and Connections: Occasionally check the tubing for any signs of kinks, leaks, or damage. Ensure all connections to the pump, radiator, and motherboard are secure.
• Software Updates: Keep your ASUS software (e.g., Armoury Crate) updated to ensure the latest features, performance optimizations, and bug fixes for fan and RGB control.

5. Troubleshooting

If you encounter issues with your ROG Strix LC II 240 cooler, consider the following:

• No Power/RGB: Verify all power and RGB cables are securely connected to the motherboard and pump. Check motherboard BIOS settings for fan and pump control.
• High CPU Temperatures: Ensure the pump block is properly seated on the CPU and the mounting screws are tightened evenly. Check for adequate airflow in your PC case and ensure radiator fans are spinning correctly. Verify thermal paste coverage if the cooler was reinstalled.
• Excessive Noise: Check fan speeds in your control software. Ensure no cables are obstructing fan blades. If pump noise is unusual, contact ASUS support.
• Software Issues: Reinstall or update ASUS control software. Ensure your operating system and drivers are up to date.

6. Technical Specifications

7. Warranty and Support

Warranty Information:

The ASUS ROG Strix LC II 240 Liquid CPU Cooler comes with a 6-year warranty, providing assurance for its quality and durability.

Customer Support:

For further assistance, technical support, or warranty claims, please visit the official ASUS support website or contact their customer service department. You can find detailed support resources, FAQs, and contact information on their website.