Copper, Nickel, Brass and Aluminum: The Mixed-Metal Check Before You Fill

Quick AnswerList the materials that actually touch coolant. Copper, brass and nickel-plated copper are commonly used together in PC loops; aluminum belongs in an all-aluminum ecosystem unless the manu...

First Fill, First Leak Test: A Calm Checklist for a New Custom Loop

Quick AnswerCheck every port and fitting before testing. Use an air tester only within component limits, or isolate the pump and hardware during a liquid test. Never let the pump run dry, and inspect ...

Control the Fans From Coolant Temperature, Not Every CPU Spike

Quick AnswerCPU package temperature can change in seconds while coolant moves more slowly. A coolant sensor gives radiator fans a steadier control signal. Set conservative limits from component rating...

RTX 5090 Hotspot Too High After Water Blocking? Diagnose Contact Before Buying More Radiators

Quick AnswerA high RTX 5090 hotspot is not automatically a radiator problem. Compare ambient, coolant, core, hotspot and memory temperatures, then inspect mounting pressure, paste spread and thermal-p...