Bykski N-EV3090FTW3-TC-V2 Full Coverage GPU Block w/ Active Backplate for EVGA RTX 3080/3080Ti/3090 FTW3 Ultra Gaming, G1/4
Bykski N-EV3090FTW3-TC-V2 Full Coverage GPU Block w/ Active Backplate for EVGA RTX 3080/3080Ti/3090 FTW3 Ultra Gaming, G1/4
SKU:N-EV3090FTW3-TC-V2_RBW
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The Bykski N-EV3090FTW3-TC-V2 is a full-cover GPU water block with active waterway backplane engineered specifically for the EVGA RTX 3090/3080Ti/3080 FTW3 Ultra Gaming. Unlike standard blocks, its integrated backplate cooling directly contacts the rear-mounted GDDR6X memory modules—addressing the critical thermal gap that causes reference 3090s to hit 104-110°C VRAM junction temps and throttle at 92°C under sustained LLM inference loads.
Silence is mandatory for home AI labs. Stock FTW3 coolers ramp to 45-65 dBA during hours-long Stable Diffusion or Ollama sessions; this water block drops operation below 30 dBA, transforming bedroom or home office rigs from audible distractions to invisible infrastructure. For used GPU revival, 2-4 year old 3090s—whether previously-deployed—suffer degraded thermal pads that perpetuate throttling. Installing this block performs a complete thermal reset, restoring full 350W TDP headroom for 24GB model serving.
24/7 reliability demands sustained thermal headroom. AI inference isn't bursty gaming; it runs continuous token generation for days. The active backplane maintains GDDR6X at 60-70°C versus 92°C+ air-cooled limits, preventing performance degradation and extending hardware lifespan. For multi-GPU necessity, dual 3090 configurations (700-900W combined) physically cannot be air-cooled in standard cases—water cooling becomes the only viable path to dense local LLM hosting.
Nickel-plated copper construction, G1/4 threading, precision-machined microfins, and included aluminum backplate. Ships worldwide. Verify PCB compatibility via product images before ordering.
Frequently Asked Questions
Is this waterblock compatible with my RTX 3090?
This Bykski waterblock is designed for the RTX 3090. 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 3090 be with water cooling?
Stock RTX 3090 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 350W 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 3090?
- Thermal pads on 2-4 year old used 3090s are degraded; installing a waterblock = complete thermal reset, revives ex-mining/ex-gaming cards for AI duty
- 350W sustained for 24/7 Ollama inference = 55 dBA fan noise from the triple-fan FE cooler — unacceptable for home office/bedroom
- Dual-3090 builds (700W total GPU) are the cheapest path to 48GB VRAM for 70B LLMs — water cooling is the only way to fit both in a normal case
- #1 target for FormulaMod — the largest used-GPU waterblock upgrade market in existence
Full-cover water blocks cool GPU die + VRAM + VRM simultaneously — unlike air coolers that only target the GPU die.
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