Bykski All-in-one GPU water cooling, For RTX4090/4080/4070/3090, Water Cooling System Liquid Cooler,120 240 360 Radiator, B-FRDGPU-X-V2
Bykski All-in-one GPU water cooling, For RTX4090/4080/4070/3090, Water Cooling System Liquid Cooler,120 240 360 Radiator, B-FRDGPU-X-V2
SKU:B-FRDGPU-X-V2-240
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The Bykski copper radiator is the heat-rejection backbone of any custom water cooling loop. High-density fin stacks and full copper construction maximize thermal transfer to the air while keeping flow restriction low enough for quiet, low-speed fans.
AI inference is a continuous heat source — not a gaming spike. A properly sized radiator keeps loop temperatures stable across multi-hour LLM sessions, protecting VRAM and GPU die from the slow thermal creep that causes throttling. Sized for single-GPU or multi-GPU configurations depending on fan mount count.
Material: copper core, aluminum or copper header tanks. Fittings: G1/4 ports. 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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