Bykski GPU Block For Colorful RTX 4090 Single Turbine, High Heat Resistance Material POM + Full Metal Construction, With Backplate Full Cover GPU Water Cooling Cooler Radiator Block, N-IG4090-X
Bykski GPU Block For Colorful RTX 4090 Single Turbine, High Heat Resistance Material POM + Full Metal Construction, With Backplate Full Cover GPU Water Cooling Cooler Radiator Block, N-IG4090-X
SKU:N-IG4090-X
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The Bykski N-IG4090-X is a full-cover water block engineered specifically for the Colorful RTX 4090 Single Turbine, built for AI enthusiasts running Stable Diffusion, Ollama, and local LLMs at 450W sustained loads. Stock triple-fan coolers scream at 50–60 dBA under continuous inference—this block replaces that noise with near-silent pump flow, critical for bedroom and home office deployments.
VRAM PROTECTION: GDDR6X junction temps spike past 90°C during hours-long model loads, triggering hard throttles that corrupt generation quality. The nickel-plated copper cold plate presses directly onto every VRAM module, maintaining thermal headroom for 24/7 reliability without clock degradation.
MULTI-GPU NECESSITY: Dual RTX 4090s in one chassis dump 900W of heat—no air solution exists. This block's POM + full metal construction integrates into custom loops that tame multi-GPU AI workstations. For used 4090s with degraded factory pads, installation performs a complete thermal reset, restoring original boost behavior.
Nickel-plated copper base, G1/4 threading, integrated aluminum backplate included. Ships worldwide.
Frequently Asked Questions
Is this waterblock compatible with my RTX 4090?
This Bykski waterblock is designed for the RTX 4090. 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 4090 be with water cooling?
Stock RTX 4090 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 450W 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 4090?
- 24/7 Stable Diffusion inference pushes VRAM to 90°C+ junction; full-cover waterblocks eliminate throttling
- Dual-4090 builds (900W total GPU) are physically impossible in normal cases without water cooling — 3-slot air coolers block each other
- The #1 used-GPU-to-waterblock conversion target — buyers snagging secondhand 4090s want silent 24/7 AI rigs
Full-cover water blocks cool GPU die + VRAM + VRM simultaneously — unlike air coolers that only target the GPU die.
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