How to stop the ML360 Sub-Zero from locking up in Unreal Engine 5?
Seeing Nanite geometry flow smoothly was amazing until the whole system just froze. The thermoelectric cooling (TEC) module in the ML360 Sub-Zero was overshooting under heavy load, with the cold plate swinging violently between 15C and 45C, which messed up the CPU's internal clock stability. I first tried cranking the rad fans to 2200 RPM, but it only dropped water temps by 2C and did nothing for the TEC delta—a total waste of time. I eventually used the dedicated software to switch the TEC mode from 'Auto' to 'Strong' and flipped my radiator to a front-intake config to maximize airflow. In 3DMark, the CPU peaked at 62-68C with zero freezes. I did have a scare where the power spike from 'Strong' mode triggered my PSU's OCP, until I swapped to higher-gauge power cables. The TEC current now sits steady at 4.2-5.1A. Monitoring confirms the logic is finally working, and frame generation is stable at 5.1-6.4ms.
