One of the main features any gaming rig needs is good cooling to avoid thermal throttling when gaming or dealing with heavy workloads. While factory-sealed liquid cooling units offer superior thermal conductivity compared to basic air-controlled heatsinks, they're complex, mechanical assemblies operating under constant heat and pressure, making eventual hardware degradation an inevitability. Closed-loop liquid units typically have an operational lifespan of three to six years. Over time, fluid evaporation, mechanical pump wear, and internal corrosion can quietly diminish a cooler's effectiveness. By learning how sealed closed-loop coolers operate compared to custom loops, users can monitor physical and software indicators to keep their rigs running safely.