{"product_id":"bykski-gpu-water-block-for-inno3d-galax-gainward-ax-aicreference-rtx-4090-full-cover-with-backplate-pc-water-cooling-cooler-n-rtx4090h-x","title":"Bykski GPU Water Block For Inno3D \/ Galax \/ Gainward \/ AX \/ AIC(Reference) RTX 4090, Full Cover With Backplate PC Water Cooling Cooler, N-RTX4090H-X","description":"\u003cp\u003eThe \u003cstrong\u003eBykski N-RTX4090H-X\u003c\/strong\u003e is a full-coverage water block engineered for \u003cstrong\u003eInno3D, Galax, Gainward, AX and AIC reference RTX 4090\u003c\/strong\u003e cards running local LLMs, Stable Diffusion, and Ollama workloads. At 450W sustained AI inference, stock triple-fan coolers scream at 50–60 dBA—untenable for bedroom or home office rigs. This block drops noise below 30 dBA while delivering the thermal headroom that 24\/7 operation demands.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eVRAM PROTECTION\u003c\/strong\u003e is critical: GDDR6X junction temperatures hit 90°C+ during prolonged model loading and token generation, triggering hard throttles that crater inference speed. The N-RTX4090H-X presses nickel-plated copper directly onto every memory module, VRM, and the AD102 core—elimating hotspots that air coolers cannot touch. For \u003cstrong\u003eUSED GPU REVIVAL\u003c\/strong\u003e, aging RTX 4090s with degraded factory thermal pads regain full thermal performance; a fresh water block is a complete thermal reset.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMULTI-GPU NECESSITY\u003c\/strong\u003e makes this block essential: dual RTX 4090s pull 900W+ in a single case, a load no air solution can manage. Whether you're scaling LLaMA 70B across two cards or running continuous batch inference, \u003cstrong\u003e24\/7 RELIABILITY\u003c\/strong\u003e requires sustained sub-70°C core temps that only custom liquid cooling guarantees.\u003c\/p\u003e\n\n\u003cp\u003eNickel-plated copper cold plate, G1\/4 threading, integrated aluminum backplate for VRM cooling. Ships worldwide.\u003c\/p\u003e\n\u003cdiv class=\"product-faq\"\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs this waterblock compatible with my RTX 4090?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis 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.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow much quieter will my RTX 4090 be with water cooling?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStock 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.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat else do I need for a complete loop?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBesides 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 \u003ca href=\"\/en-ca\/collections\/ai-workstation-cooling\"\u003eAI Workstation Cooling\u003c\/a\u003e collection for complete setups.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I run this 24\/7 for AI inference?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. 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.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes FormulaMod ship to the USA and Europe?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. We ship worldwide from our Shenzhen warehouse. USA and EU orders typically arrive within 7 days. All products are covered by our return policy.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Bykski","offers":[{"title":"RBW(5v 3pin) \/ With backplane \/ None","offer_id":40822331211912,"sku":"N-RTX4090H-X_RBW","price":131.94,"currency_code":"USD","in_stock":true},{"title":"RBW(5v 3pin) \/ With backplane \/ Additional light controller (optional for without light sync)","offer_id":41797313298568,"sku":"N-RTX4090H-X_RBW*1+B-RBW-C8-V5*1","price":141.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0335\/6554\/0488\/products\/z1_f0ed3388-2847-41fe-be06-8e9f3ddae3b7.jpg?v=1666345558","url":"https:\/\/www.formulamod.net\/en-ca\/products\/bykski-gpu-water-block-for-inno3d-galax-gainward-ax-aicreference-rtx-4090-full-cover-with-backplate-pc-water-cooling-cooler-n-rtx4090h-x","provider":"FormulaMod","version":"1.0","type":"link"}