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Electroplated copper and clear acrylic GPU water block with active backplate for RTX 3090

Bykski

Bykski Full-Coverage GPU Water Block with Active Backplate for Galaxy RTX 3090 Gamer

SKU CH-JWYX-KJY72

Full-coverage water block with active backplate cools GPU, memory and VRM on both sides of Galaxy RTX 3090 Gamer cards

  • TypeCPU Block
  • Cools GPU, VRAM and VRM for lower load temps
  • Electroplated copper resists corrosion over long use
  • Integrated active backplate cools both PCB sides
  • High-flow design supports multiple blocks in series
  • Fits Galaxy RTX 3090 Gamer and compatible models

Compatibility & Fit

This full-coverage water block is designed specifically for Galaxy RTX 3090 Gamer, Gamer OC, Shinyo and Shinyo OC graphics cards. It cools the GPU core, memory modules and voltage regulators on both sides of the PCB. Buyers must verify their exact board layout against the reference photos before ordering.

Who It Suits & Who Should Look Elsewhere

Custom-loop builders who own one of the listed Galaxy models and want lower temperatures for higher overclocks or longer component life will benefit. Users with any other RTX 3090 design, different brand cards or air-cooling setups cannot use this block and should seek a compatible alternative.

Included Parts & Practical Impact

The package supplies the main block and an active backplate, both made from electroplated high-purity copper with clear acrylic tops. G 1/4-inch threaded ports on both pieces allow high-flow series plumbing. No fittings, tubing or coolant are included, so plan those separately to complete the loop.

Highlights

  • Cools GPU, VRAM and VRM for lower load temps
  • Electroplated copper resists corrosion over long use
  • Integrated active backplate cools both PCB sides
  • High-flow design supports multiple blocks in series
  • Fits Galaxy RTX 3090 Gamer and compatible models

Specifications

TypeCPU Block

Questions about this item

What custom-loop parts do I already need to install this water block?

You need a pump, reservoir, radiator, tubing and G 1/4in fittings to complete the loop before mounting the block and active backplate on the Galaxy RTX 3090 Gamer.

Will the block fit if I keep the factory backplate on my Galaxy RTX 3090 Gamer?

No, the factory backplate must be removed because this kit includes an active backplate that replaces it and contacts the VRM and memory on the reverse side of the PCB.

How can I verify the block is seated correctly after installation?

Check that coolant flows through both the main block and active backplate without leaks, then monitor GPU core, memory and VRM temperatures under load to confirm they stay below stock air-cooled levels.

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