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Best liquid cooling loops for high‑end GPUs
TechGuru
Sep 16, 2025 · 2:15 PM

Hey everyone, I'm planning a new build with an RTX 4090 and want the best cooling solution. I've heard about custom loops using EK‑WB3 and Swiftech pumps. Any recommendations on block combos, radiator sizes, or coolant additives?

CoolMaster
Sep 16, 2025 · 3:02 PM

For a 4090 I’d stick with a 360 mm radiator at the front and a 240 mm on the top. EK‑WB3 with the EK‑WBZ‑30 GPU block works great. Use a D5 pump with a flow meter so you can fine‑tune the pressure.