Granzon Full Armor GPU Block For Nvidia RTX 4090 Founders Edition AIC/ Metal Master Glare, Full Coverage Full Wrap Cooling Armor, GBN-RTX4090H
Granzon Full Armor GPU Block For Nvidia RTX 4090 Founders Edition AIC/ Metal Master Glare, Full Coverage Full Wrap Cooling Armor, GBN-RTX4090H
SKU:GBN-RTX4090H
Verfügbarkeit für Abholungen konnte nicht geladen werden
The Granzon Full Armor GPU Block is purpose-built for the NVIDIA RTX 4090 Founders Edition and compatible AIC variants running 450W sustained AI workloads—Ollama LLM hosting, Stable Diffusion batch generation, and local model training that runs for hours or days, not minutes.
Silence is non-negotiable 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. VRAM protection 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.
Running dual RTX 4090s 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 used GPU revival, aging RTX 4090s with degraded factory thermal pads see immediate thermal reset—full performance restored with fresh cooling contact.
Precision-machined nickel-plated copper core, G1/4 standard threading, integrated aluminum backplate for VRM cooling. Ships worldwide.
Frequently Asked Questions
Is this waterblock compatible with my RTX 4090?
This 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.
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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