Astralcooler GPU Water Block for NVIDIA RTX 4090D 24G/48G

Compatible Platform(with illustrations)

• NVIDIA RTX 4090D 24G/48G

Cooling Position

• Components with high heat generation, such as GPU cores, VRAM, power MOSFETs, inductors, and tantalum capacitors.

Heat Dissipation Principle

• The high-purity oxygen-free copper base plate of the graphics card's water block covers key high-heat components, including the GPU core, VRAM, power MOSFETs, and tantalum capacitors. The heat absorbed by the water block is then carried away by the flowing coolant.

Block Features

• High thermal conductivity:
  
  • Made of T2 oxygen-free copper, the base plate delivers a high thermal conductivity of 401 W/m·K, improving heat transfer efficiency and increasing heat dissipation area.
    
• High-density jet micro-channel design:
  
  • The waterway area is enlarged with up to 176 micro-channels, each featuring a bottom groove. The asymmetric 5+3 channel configuration (0.5 mm slot width + 0.01 mm spacing) increases the contact area between the coolant and the base plate, enhancing the heat dissipation efficiency of the water block.
    
• Full metal coverage:
  
  • The copper plate is extended to 157 mm in length to maximize coolant flow coverage.
    
• Lightweight design:
  
  • Reduces the weight of the water block, preventing PCB deformation. A more reliable passivation process ensures faster heat conduction while effectively resisting corrosion and erosion.

Installation Guide (with illustrations)

1. Graphics card top cover *1
   
2. 1.5mm thermal pad *6
   
3. Graphics card
   
4. Graphics Card Backplate *1
   
5. Phillips screws *14