{"product_id":"bykski-gpu-water-block-for-colorful-rtx-4090-battle-axe-full-cover-with-backplate-pc-water-cooling-cooler-n-ig4090zf-x","title":"Bykski GPU Water Block For Colorful RTX 4090 Battle Axe, Full Cover With Backplate PC Water Cooling Cooler, N-IG4090ZF-X","description":"\u003cp\u003eThe Bykski N-IG4090ZF-X full-cover water block is engineered specifically for the Colorful RTX 4090 Battle Axe, transforming a 450W AI inference heater into a near-silent thermal solution. For local LLM and Stable Diffusion enthusiasts running Ollama or ComfyUI at home, this block replaces the stock triple-fan cooler that screams at 50-60 dBA under sustained load with whisper-quiet water cooling below 30 dBA — critical when your \"server\" sits in your bedroom or home office.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eVRAM PROTECTION\u003c\/strong\u003e and \u003cstrong\u003e24\/7 RELIABILITY\u003c\/strong\u003e are non-negotiable for AI workloads. The RTX 4090's 24GB GDDR6X hits 90°C+ junction temperatures during hours-long inference sessions, triggering aggressive throttling that cripples token generation speed. This full-cover block presses nickel-plated copper directly against every VRAM module and VRM stage, eliminating thermal bottlenecks that air coolers cannot address under continuous load.\u003c\/p\u003e\n\n\u003cp\u003ePlanning \u003cstrong\u003eMULTI-GPU\u003c\/strong\u003e scaling? Dual 4090s pull 900W+ — no air solution exists that fits two cards in a standard case without thermal compromise. Water cooling is mandatory. The included aluminum backplate adds structural rigidity and passive cooling for rear VRAM, while the integrated design simplifies loop planning for dual-card AI rigs.\u003c\/p\u003e\n\n\u003cp\u003eNickel-plated copper cold plate, G1\/4 threading, full coverage backplate included. 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=\"\/de\/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":40822375022728,"sku":"N-IG4090ZF-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":41797295669384,"sku":"N-IG4090ZF-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_53df14aa-943a-4736-9e9e-58385c4afd6c.jpg?v=1665644139","url":"https:\/\/www.formulamod.net\/de\/products\/bykski-gpu-water-block-for-colorful-rtx-4090-battle-axe-full-cover-with-backplate-pc-water-cooling-cooler-n-ig4090zf-x","provider":"FormulaMod","version":"1.0","type":"link"}