{"product_id":"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","title":"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","description":"\u003cp\u003eThe 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.\u003c\/p\u003e\u003cp\u003eAI 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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e copper core, aluminum or copper header tanks. \u003cstrong\u003eFittings:\u003c\/strong\u003e G1\/4 ports. 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=\"\/ja\/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":"240mm \/ Black","offer_id":44359926055048,"sku":"B-FRDGPU-X-V2-240","price":213.47,"currency_code":"USD","in_stock":true},{"title":"360mm \/ Black","offer_id":44359926087816,"sku":"B-FRDGPU-X-V2-360","price":244.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0335\/6554\/0488\/files\/W1_5a935559-fc6c-4620-a25b-17d661a1b5e6.jpg?v=1765434773","url":"https:\/\/www.formulamod.net\/ja\/products\/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","provider":"FormulaMod","version":"1.0","type":"link"}