darkFlash DG240

darkFlash DG240 240mm All-in-One Liquid CPU Cooler Instruction Manual

Model: DG240

1. Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of your darkFlash DG240 240mm All-in-One (AIO) Liquid CPU Cooler. Please read this manual thoroughly before installation to ensure proper setup and optimal performance.

The darkFlash DG240 is designed to provide efficient cooling for your CPU, featuring a high-performance pump, ARGB lighting, and PWM-controlled fans. It is compatible with various Intel and AMD CPU sockets.

2. Package Contents

Verify that all components are present in the package:

  • DG240 AIO Cooler (Radiator, Pump, and Fans pre-attached)
  • Mounting Brackets for Intel and AMD Sockets
  • Backplates for Intel and AMD Sockets
  • Mounting Screws and Standoffs
  • Thermal Paste (pre-applied or in a tube)
  • User Manual
darkFlash DG240 AIO Liquid CPU Cooler

Image 2.1: darkFlash DG240 240mm AIO Liquid CPU Cooler with ARGB fans and pump.

3. Installation Guide

Before beginning installation, ensure your system is powered off and unplugged. Refer to your motherboard manual for specific header locations.

3.1. CPU Socket Compatibility

The darkFlash DG240 supports the following CPU sockets:

  • Intel: LGA 1200, 115X, 1700, 1851
  • AMD: AM4, AM5
Intel and AMD CPU Socket Compatibility Brackets

Image 3.1: Mounting brackets for Intel and AMD CPU sockets.

3.2. Preparing the Motherboard

  1. Identify the correct backplate for your CPU socket (Intel or AMD).
  2. Attach the backplate to the rear of your motherboard, aligning the holes with the CPU cooler mounting holes.
  3. Insert the appropriate standoffs through the motherboard from the front, securing them to the backplate.

3.3. Installing the Radiator and Fans

The DG240 features a 240mm radiator with two fans. The fans are designed for high wind pressure and efficient airflow.

High Wind Pressure Thickened Fans

Image 3.2: Illustration of the high wind pressure fans, indicating fan speed, air capacity, and pressure.

Efficient Heat Dissipation Radiator

Image 3.3: Diagram showing the high-density cooling radiator with optimized airflow and IIR+EPDM dual-material tubing.

  1. Determine the optimal mounting location for the radiator within your PC case (e.g., top, front, or rear). Ensure adequate clearance.
  2. Secure the radiator to the case using the provided screws.
  3. Ensure the fans are oriented to push or pull air as desired for optimal case airflow.

3.4. Mounting the Pump/Cold Plate

The pump features a 3-phase 6-pole motor and a ceramic bearing for efficient and durable operation.

3-Phase 6-Pole Motor Water Pump Diagram

Image 3.4: Exploded view of the pump, highlighting the 3-phase 6-pole motor, ceramic bearing, and copper cold plate.

Optimized Copper Cooling Plate

Image 3.5: Close-up of the optimized copper cooling plate, showing its dimensions and micro-channel design for improved heat transfer.

  1. If thermal paste is not pre-applied, apply a small, pea-sized amount to the center of your CPU's integrated heat spreader (IHS).
  2. Carefully place the pump/cold plate assembly onto the CPU, aligning the mounting holes with the standoffs.
  3. Secure the pump with the provided thumb screws or nuts, tightening them in a diagonal pattern until snug. Do not overtighten.

3.5. Cable Connections

The DG240 features ARGB lighting and PWM fan control.

ARGB Sync Setup

Image 3.6: Example of the DG240 cooler installed in a PC case, demonstrating ARGB lighting synchronization with other components.

Streamlined ARGB and PWM Connection

Image 3.7: Diagram illustrating the daisy-chain connection for the cooling fans and the consolidated PWM connection cable.

  1. Connect the pump's 3-pin power cable to an available 3-pin or 4-pin fan header on your motherboard (usually labeled "AIO_PUMP" or "CPU_FAN"). Ensure it receives full power.
  2. Connect the fans' PWM cable to the CPU_FAN header on your motherboard. The fans support daisy-chain connection for simplified wiring.
  3. Connect the 5V 3-pin ARGB cable from the pump and fans to a compatible 5V 3-pin ARGB header on your motherboard. This allows for synchronized lighting effects.
  4. Organize cables to ensure proper airflow and a clean build.

4. Operating Instructions

4.1. Initial Power-Up

After installation, double-check all connections before powering on your system. Upon first boot, monitor CPU temperatures using system monitoring software.

4.2. PWM Fan Control

The fans are PWM-controlled, meaning their speed adjusts automatically based on CPU temperature. This provides optimal cooling performance when needed and quieter operation during lighter loads. You can configure fan curves in your motherboard's BIOS/UEFI settings or through compatible software.

4.3. ARGB Lighting Synchronization

The DG240 supports 5V 3-pin Addressable RGB (ARGB) synchronization. Connect the ARGB cable to a compatible motherboard header (e.g., ASUS Aura Sync, MSI Mystic Light Sync, Gigabyte RGB Fusion, ASRock Polychrome RGB) to control lighting effects through your motherboard's software. This allows for unified lighting across your system components.

5. Maintenance

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

  • Dust Removal: Periodically clean dust from the radiator fins and fan blades using compressed air. Ensure fans are not spinning during cleaning.
  • Cable Management: Verify that all cables are securely connected and not obstructing airflow.
  • Coolant Check: As an AIO unit, the coolant is sealed and does not require refilling. However, inspect the tubing for any signs of leaks or damage.
  • Pump Noise: A slight hum from the pump is normal. Excessive noise or grinding sounds may indicate an issue and should be investigated.

6. Troubleshooting

If you encounter issues with your darkFlash DG240 cooler, refer to the following common problems and solutions:

ProblemPossible CauseSolution
High CPU Temperatures
  • Insufficient thermal paste or improper application.
  • Pump not functioning or running at low speed.
  • Fans not spinning or oriented incorrectly.
  • Radiator fins clogged with dust.
  • Reapply thermal paste.
  • Check pump power connection and ensure it's connected to a full-power header.
  • Verify fan connections and orientation. Clean radiator.
Fans Not Spinning
  • Loose or incorrect fan power connection.
  • Fan curve settings in BIOS/UEFI.
  • Ensure fans are securely connected to the CPU_FAN header.
  • Adjust fan speed settings in BIOS/UEFI.
ARGB Lighting Not Working
  • Incorrect ARGB header connection (e.g., connected to 12V RGB instead of 5V ARGB).
  • Loose ARGB cable connection.
  • Motherboard ARGB software not configured.
  • Verify connection to a 5V 3-pin ARGB header.
  • Ensure ARGB cables are fully seated.
  • Use motherboard's ARGB software to control lighting.
Unusual Pump Noise
  • Air bubbles in the loop.
  • Pump running at an unstable voltage.
  • Orient the radiator higher than the pump if possible. Gently tilt the PC case to help dislodge air bubbles.
  • Ensure the pump is connected to a stable power source (e.g., AIO_PUMP header set to 100% in BIOS).

7. Specifications

Detailed technical specifications for the darkFlash DG240 Liquid CPU Cooler:

FeatureSpecification
Model NumberDG240
Product Dimensions10.91"L x 4.72"W x 1.06"H (Radiator)
WeightApproximately 3.68 Pounds
CPU Socket CompatibilityIntel LGA 1200/115X/1700/1851, AMD AM4/AM5
Cooling MethodLiquid (Water)
Radiator MaterialAluminum
Cold Plate MaterialCopper, Micro Skived Fins
Pump SpeedUp to 3000 RPM
TDP SupportUp to 315W
Fan AirflowUp to 81.5 CFM
Fan Noise Level33 dBA (Maximum)
Maximum Rotational Speed (Fans)1800 RPM
Power Connector Type5-Pin (for pump/fans, typically splits to 3-pin pump and 4-pin PWM fan)
Voltage12 Volts
Wattage1.8 watts (Pump)
ARGB Sync5V 3-pin ARGB compatible with major motherboard brands
Tubing Length400mm (15.75 inches)
darkFlash DG240 Dimensions

Image 7.1: Diagram showing the dimensions of the darkFlash DG240 cooler, including radiator and water block size.

8. Warranty and Support

8.1. Warranty Information

The darkFlash DG240 All-in-One Liquid CPU Cooler comes with a 3-year warranty. This warranty covers defects in materials and workmanship under normal use. For warranty claims, please retain your proof of purchase.

For additional protection, extended protection plans may be available through your retailer:

  • 3-Year Protection Plan
  • 4-Year Protection Plan
  • Complete Protect (monthly plan)

8.2. Technical Support

For technical assistance, troubleshooting, or further inquiries, please visit the official darkFlash website or contact their customer support. Refer to the product packaging or the darkFlash brand store on Amazon for the most current contact information.

darkFlash Brand Store: Visit darkFlash Store on Amazon

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