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Full-coverage GPU water block with integrated active backplate for RTX 3090

Bykski

Bykski Full Coverage GPU Water Block Integrated Active Backplate AIC Reference RTX 3090

SKU CH-MWFS-SMMPS

Full-coverage water block with integrated active backplate cools the GPU core, memory and VRMs on compatible RTX 3090 cards for lower temperatures and higher overclocks

  • TypeCPU Block
  • Cools GPU core, memory and VRM on both sides
  • Integrated active backplate adds extra cooling surface
  • Supports AIC reference and 12 partner RTX 3090 models
  • Includes water block, backplate, fittings, hardware and thermal grease
  • Built-in 5 V addressable RGB lighting for system sync

Direct-Contact Cooling

This full-coverage water block mounts directly on the GPU die, memory chips and voltage regulators on both sides of the printed circuit board. An integrated active backplate adds cooling to the rear of the card. The assembly is designed for AIC reference RTX 3090 layouts and the specific partner models listed by the manufacturer.

Custom-Loop Builders

Enthusiasts assembling an open-loop system who own one of the listed ZOTAC, GALAXY, LEADTEK, Manli, PNY, Palit, KFA2 or Gainward variants can use this block. Buyers with a Founders Edition card, a different partner design or an air-cooling setup should look elsewhere because the mounting pattern and PCB component placement will not match.

Compatibility Verification

The single specification that decides fitment is the exact printed circuit board layout of your graphics card. You must compare the manufacturer’s PCB reference photo with your own card before purchase; even cards sharing the same model name can differ in component placement and prevent the block from seating correctly.

Highlights

  • Cools GPU core, memory and VRM on both sides
  • Integrated active backplate adds extra cooling surface
  • Supports AIC reference and 12 partner RTX 3090 models
  • Includes water block, backplate, fittings, hardware and thermal grease
  • Built-in 5 V addressable RGB lighting for system sync

Specifications

TypeCPU Block

Questions about this item

Will the full-coverage block and active backplate fit the PCB of my Gainward RTX 3090 Phoenix GS?

The block supports Gainward Phoenix and Phoenix GS models; compare the supplier PCB photo to your card before installation.

How can I verify the 5 V A-RGB lighting is functioning after mounting the block?

Connect the 5 V A-RGB header to a compatible motherboard or controller; the LEDs will illuminate immediately if the connection is correct.

Does the package include fittings and thermal pads, or must I buy them separately?

The box contains the water block, active backplate, two stop fittings, mounting hardware, and thermal grease; compression fittings and coolant are not included.

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