Bykski GPU Water Block For Inno3D / Galax / Gainward / AIC(Reference) RTX 4080, Full Cover With Backplate PC Water Cooling Cooler, N-RTX4080H-X
Bykski GPU Water Block For Inno3D / Galax / Gainward / AIC(Reference) RTX 4080, Full Cover With Backplate PC Water Cooling Cooler, N-RTX4080H-X
SKU:N-RTX4080H-X_RBW
Couldn't load pickup availability
The Bykski N-RTX4080H-X is a full-cover water block engineered for the Inno3D / Galax / Gainward RTX 4080 reference PCB, targeting home AI builders running Stable Diffusion, Ollama, and local LLMs. At 320W sustained load, stock fans scream at 45–65 dBA—untenable for bedroom or home office inference rigs. This block drops acoustic output below 30 dBA while delivering the thermal headroom 24/7 AI workloads demand.
Silence is mandatory, not optional. AI inference runs for hours or days, not minutes. Air-cooled 4080s spike fan speeds unpredictably during token generation; water cooling eliminates this entirely. VRAM protection is critical: GDDR6X modules throttle at 92°C under sustained attention-layer computation. The Bykski block presses nickel-plated copper directly onto every memory chip, not just the GPU core—stabilizing inference on 16GB models that cache large models borderline.
Dual-GPU necessity. Two RTX 4080s (640W combined) cannot coexist in one case on air—no cooler exists that fits. This block enables parallel inference setups for larger model sharding or batch throughput. Used GPU revival applies here too: aging 4080s from the first production run suffer thermal pad degradation; a fresh water block acts as a complete thermal reset, restoring base clocks and eliminating thermal-induced stuttering in long-generation tasks.
Full nickel-plated copper construction, G1/4 threading, integrated aluminum backplate for VRM cooling. Ships worldwide.
Frequently Asked Questions
Is this waterblock compatible with my RTX 4080?
This Bykski waterblock is designed for the RTX 4080. Check the product title for specific card brand compatibility — non-reference PCB designs (ASUS Strix, MSI Suprim, etc.) require model-specific blocks. Reference/Founders Edition cards use a different block.
How much quieter will my RTX 4080 be with water cooling?
Stock RTX 4080 coolers run at 45-65 dBA under sustained AI workloads like Ollama or Stable Diffusion. A full-cover waterblock reduces noise to under 30 dBA — quieter than a refrigerator. VRAM temperatures also drop from 90°C+ to 60-70°C, preventing thermal throttling during long inference sessions.
What else do I need for a complete loop?
Besides this waterblock, a complete custom loop needs: a radiator (360mm minimum for 320W TDP), a D5 or DDC pump with reservoir, G1/4 fittings (8-12 pieces), tubing (soft or hard), and coolant. FormulaMod carries all components — browse our AI Workstation Cooling collection for complete setups.
Can I run this 24/7 for AI inference?
Yes. Water cooling is designed for sustained loads, unlike air coolers which rely on fan speeds that create noise. A properly maintained loop can run 24/7 indefinitely with coolant changes every 12-18 months.
Does FormulaMod ship to the USA and Europe?
Yes. We ship worldwide from our Shenzhen warehouse. USA and EU orders typically arrive within 7 days. All products are covered by our return policy.
Why Water Cool the RTX 4080?
- Waterblock unlocks dual-4080 configurations
Full-cover water blocks cool GPU die + VRAM + VRM simultaneously — unlike air coolers that only target the GPU die.
Share
