Bykski GPU Water Block For ASUS PRIME RTX5080 O16G, Full Cover With Backplate PC Water Cooling Cooler, N-AS5080PM-X
Bykski GPU Water Block For ASUS PRIME RTX5080 O16G, Full Cover With Backplate PC Water Cooling Cooler, N-AS5080PM-X
SKU:N-AS5080PM-X_RBW_RBW
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The Bykski N-AS5080PM-X is a full-coverage water block purpose-built for the ASUS PRIME RTX 5080 O16G, transforming Blackwell's 360W sustained AI inference loads from a 45+ dBA fan scream into near-silent operation. For local LLM enthusiasts running Ollama or Stable Diffusion 24/7, this block replaces the stock dual-fan cooler that struggles under continuous load with a whisper-quiet loop.
Silence is non-negotiable for home AI rigs. Stock RTX 5080 coolers ramp to 45-65 dBA during hours-long model inference; water cooling drops this below 30 dBA—critical for bedroom or home office deployments where you live next to your hardware. The full-coverage cold plate presses directly onto the 16GB GDDR7 VRAM modules, preventing the 92°C throttling threshold that cripples sustained throughput on memory-bound LLM workloads.
Built for 24/7 reliability and multi-GPU scaling. AI inference runs continuously, not in gaming bursts—this block maintains thermal headroom hour after hour. Planning dual 5080s for larger parameter models? Two 360W cards in one case physically exceed air cooling limits; water cooling becomes mandatory. Nickel-plated copper construction, G1/4 threading, integrated backplate included. Ships worldwide.
Frequently Asked Questions
Is this waterblock compatible with my RTX 5080?
This Bykski waterblock is designed for the RTX 5080. 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 5080 be with water cooling?
Stock RTX 5080 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 360W 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 5080?
- Blackwell dual-fan FE cooler still struggles with 24/7 workloads
- Single-slot water cooling enables packing 2x 5080 in mid-tower cases
Full-cover water blocks cool GPU die + VRAM + VRM simultaneously — unlike air coolers that only target the GPU die.
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