Custom loop for improved liquid cooling performance.
Custom loop for improved liquid cooling performance.
Checking if a new pump or reservoir is needed. Temperatures are rising in your custom loop setup. You're currently using an EK-Quantum Kinetic pump with PWM D-RGB lighting. Your GPU idle temps sit between 35-37°C, but underclocking it brings temps down to 87-89°C—this isn’t typical for a liquid cooling system. Consider whether the pump is working efficiently or if you need a replacement.
Even with a waterblock installed, the GPU can still function properly as long as the cooling system is effective.
A water block merely moves heat away from the GPU rather than cooling the water itself. If the radiator isn't functioning properly due to hot air or failing fans, the system will overheat.
A 240mm unit won’t handle the 4090’s power—4090 delivers over 400W continuously. Aim for at least 360mm, ideally 420mm for better performance.
Choose a bigger radiator or add another similar-sized one alongside the existing cooling parts. The decision depends on balancing generated heat against removal capacity. If the system can't dissipate enough heat, you'll face overheating until the problem escalates. Upgrading fans might assist, but the core issue remains excess heat versus insufficient cooling.