{"product_id":"granzon-full-armor-gpu-block-for-nvidia-rtx-4090-founders-edition-aic-metal-master-glare-full-coverage-full-wrap-cooling-armor-gbn-rtx4090h","title":"Granzon Full Armor GPU Block For Nvidia RTX 4090 Founders Edition AIC\/ Metal Master Glare, Full Coverage Full Wrap Cooling Armor, GBN-RTX4090H","description":"\u003cp\u003eThe \u003cstrong\u003eGranzon Full Armor GPU Block\u003c\/strong\u003e is purpose-built for the NVIDIA RTX 4090 Founders Edition and compatible AIC variants running \u003cstrong\u003e450W sustained AI workloads\u003c\/strong\u003e—Ollama LLM hosting, Stable Diffusion batch generation, and local model training that runs for hours or days, not minutes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSilence is non-negotiable\u003c\/strong\u003e for bedroom and home office AI rigs. Stock triple-fan coolers scream at 50–60 dBA under constant load; this full-coverage water block drops operation below 30 dBA so you can work, sleep, and iterate without noise fatigue. \u003cstrong\u003eVRAM protection\u003c\/strong\u003e is equally critical: GDDR6X junction temperatures hit 90°C+ during prolonged inference, triggering throttling that extends generation times. The Granzon block presses nickel-plated copper directly against every VRAM module, maintaining thermal headroom for uninterrupted 24\/7 reliability.\u003c\/p\u003e\u003cp\u003eRunning \u003cstrong\u003edual RTX 4090s\u003c\/strong\u003e for larger model parallelism? Two 450W GPUs in one case is physically impossible to air-cool. This block integrates into a loop that handles 700–900W+ without clearance conflicts. For \u003cstrong\u003eused GPU revival\u003c\/strong\u003e, aging RTX 4090s with degraded factory thermal pads see immediate thermal reset—full performance restored with fresh cooling contact.\u003c\/p\u003e\u003cp\u003ePrecision-machined nickel-plated copper core, G1\/4 standard 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 Granzon 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":"Granzon","offers":[{"title":"Default Title","offer_id":43144065024136,"sku":"GBN-RTX4090H","price":258.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0335\/6554\/0488\/files\/z1_f2023d26-e7fe-440d-8259-65c288b6d388.jpg?v=1733988931","url":"https:\/\/www.formulamod.net\/de\/products\/granzon-full-armor-gpu-block-for-nvidia-rtx-4090-founders-edition-aic-metal-master-glare-full-coverage-full-wrap-cooling-armor-gbn-rtx4090h","provider":"FormulaMod","version":"1.0","type":"link"}