Will this reduce noise on my RTX 3090 during AI workloads?

Yes. Stock RTX 3090 air coolers run at 45-65 dBA under sustained AI inference loads (Ollama, Stable Diffusion, ComfyUI). A full-cover waterblock like this mounted to a 360mm radiator typically reduces noise to under 30 dBA while also lowering VRAM temperatures from 90°C+ to 60-70°C, preventing throttling during long generation runs.

What else do I need for a complete water cooling loop?

A complete custom loop requires: this GPU waterblock, a radiator (360mm recommended for single GPU, 480mm for GPU+CPU), a D5 or DDC pump with reservoir combo, G1/4 fittings, tubing, and premixed coolant. FormulaMod sells complete kits starting at $249 USD including pump, radiator, and fittings.

Does this waterblock cover the VRAM and VRM chips?

Full-cover waterblocks cool the GPU die, VRAM modules, and VRM components simultaneously via a single block with an integrated cold plate. This is essential for AI workloads where sustained 100% VRAM utilization can cause memory junction temperatures to exceed 110°C on air cooling. The full-cover design distributes coolant flow across the entire PCB thermal zone.

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Bykski GPU Block With Active Waterway Backplane Water Cooling Cooler For GiGabyte RTX 3090 3080 3080Ti Aorus Master, N-GV3090AORUS-TC

Name: Bykski GPU Block With Active Waterway Backplane Water Cooling Cooler For GiGabyte RTX 3090 3080 3080Ti Aorus Master, N-GV3090AORUS-TC
Brand: Bykski
SKU: N-GV3090AORUS-TC_RBW
Price: 222.27 USD
Availability: InStock

$222.27 USD

Sale Sold out

Taxes included. Shipping calculated at checkout.

Lighting system RBW(5v 3pin)

Option GPU block + Active backplane + Bridge

SKU:N-GV3090AORUS-TC_RBW

Compatibility:

(Including but not limited to the following models)

Gigabyte Aorus RTX 3090 Master 24G

Gigabyte Aorus RTX 3090 Xtreme Waterforce

Gigabyte Aorus RTX 3080 Ti Master

Gigabyte Aorus RTX 3080 Ti Xtreme Waterforce

Gigabyte Aorus RTX 3080 Master 10G

Gigabyte Aorus RTX 3080 Xtreme Waterforce

After narrowing your selection, please check the entire PCB picture to ensure compatibility. If you have any questions, don't hesitate to contact support for confirmation.
Compatibility based on this(these) PCB designs only.
Inlet/outlet port size: G1/4" thread.

The copper plate of the block is processed by CNC machines. The machining marks and slightly uneven on the copper plate are normal and do not affect the use of the block. Please pay attention to this.

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?

350W TDP under AI load

24GB VRAM (throttles at 92°C)

<30dB With water cooling

- CRITICAL: backside GDDR6X memory modules have no heatsink contact on reference PCB — junction temps hit 104-110°C under sustained load, the root cause of the infamous '3090 VRAM throttle at 92°C' — full-cover waterblocks directly resolve this
- 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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Bykski GPU Block With Active Waterway Backplane Water Cooling Cooler For GiGabyte RTX 3090 3080 3080Ti Aorus Master, N-GV3090AORUS-TC