Graphics card cooler Alphacool Core for GeForce RTX 4090 Master V.2, compatible, 24GB GDDR6X systems, with backplate

The Alphacool Core cooler for GeForce RTX 4090 Master V.2 is a full-coverage liquid-cooling solution designed to replace the stock air cooler on compatible RTX 4090 24GB GDDR6X graphics cards. It provides direct liquid contact with the GPU and critical PCB components, while the included backplate adds structural support and additional passive heat dissipation. The product is intended for integration into custom water-cooling loops in high-performance desktop systems where lower GPU temperatures and reduced acoustic noise are desired.

Advantages

The Alphacool Core cooler offers improved thermal conductivity through a full-cover cold plate that targets the GPU die, memory modules and VRM components. Compatibility with standard G1/4 fittings allows easy integration into existing custom loops. The included backplate helps reinforce the PCB and contributes to heat spreading across the card’s rear. The design reduces fan reliance and can lower operating temperatures and noise levels compared with stock cooling solutions when properly installed in a liquid loop.

Suitable for

• Custom water-cooled gaming PCs using GeForce RTX 4090 Master V.2 cards with 24GB GDDR6X memory
• Workstations and rendering rigs requiring sustained high GPU performance with stable operating temperatures
• Users replacing air coolers to achieve quieter operation and better thermal headroom
• Systems where a backplate is needed to increase PCB rigidity and aid passive cooling

Key specifications

• Full-cover liquid cooler for GPU, memory and VRM components
• Material: cold plate with micro-channel surface for improved heat transfer
• Fitting standard: G1/4 compatible inlet and outlet ports
• Includes rear backplate for additional board support and passive heat spreading
• Compatibility: designed for GeForce RTX 4090 Master V.2 form-factor and 24GB GDDR6X configurations
• Mounting hardware and thermal interface materials included for direct replacement installation

How to use

Power down the PC, disconnect all power sources and remove the graphics card from the system. Follow the included installation guide to remove the factory cooler and clean thermal residue from the GPU die and memory chips using appropriate solvent and lint-free cloths. Apply the supplied thermal pads and paste where indicated, align the Alphacool Core cooler on the card, and fasten using the provided screws. Connect the cooler’s inlet and outlet to the custom loop using G1/4 fittings, perform a pressure test and leak check before powering the system. Reinstall the card and verify operation and temperatures under load to ensure proper cooling performance.

Usage recommendations

Use only non-conductive, manufacturer-recommended coolant in your loop and ensure all fittings are securely tightened. Maintain regular loop maintenance—periodic coolant replacement and inspection for leaks or blockages improves long-term performance. Verify physical compatibility with your case and other components before installation, and follow static-safe handling procedures when touching PCB components.