An IT technician is troubleshooting an all-in-one (AIO) liquid cooling system on a video editing computer that experiences thermal throttling and sudden power-offs under heavy processing loads. During physical inspection while the system is under load, the technician notes that the radiator fans are spinning normally, but one fluid tube connected to the CPU water block feels extremely hot while the return tube feels cool to the touch. Which of the following is the most likely cause of this issue?
- The liquid cooling pump has failed or lost power, preventing coolant circulation.Cevap
- BThe power supply unit is undercalculating peak wattage demand and reducing voltage to the motherboard fans.
- CThe operating system hypervisor is overcommitting CPU cores, causing excessive thread generation.
- DThe CPU POST beep code indicated an uncorrected memory bus timing mismatch during boot.
Cevap
The liquid cooling pump has failed or lost power, preventing coolant circulation.
In an All-in-One (AIO) liquid cooling loop, the pump continuously circulates thermal fluid between the CPU contact plate (water block) and the heat-dissipating radiator. If the pump fails or loses power, fluid movement stops. Heat accumulates rapidly in the stationary fluid near the CPU block, making that side of the tubing extremely hot, while the fluid at the radiator cools down and remains cold because it cannot cycle back.
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Anahtar Kavram
AIO Liquid Cooling Component Functionality and Thermal Troubleshooting