I just finished my first custom water build. Unfortunately I reversed the inlet and outlet cpu block ports (ek velocity 2 AM4). But my main concern is the Gpu temp which is
Amazon.com: EKWB EK-Quantum Magnitude CPU Water Block, AMD CPU (AM4), D-RGB, Nickel/Plexi : Electronics
EK reveals the new Socket AM5 QuantumVelocity² CPU Water Blocks for the next-gen AMD products
EK Water Blocks EK-Velocity CPU Water Block Review | Gaming Gorilla