PCIe power brake
PCIe power brake (PCIe throttling) quickly reduces the power consumption of high-powered PCIe devices, such as GPU adapters.
The system performs PCIe throttling when a power supply indicates that a momentary overconsumption or high-temperature warning is occurring. The system also proactively performs PCIe power throttling to thermally protect high-powered PCIe devices from damage in unsupported high-temperature environments.
The system performs PCIe throttling based on the maximum power rating of the installed high-powered PCIe adapters. High-powered PCIe device performance is reduced when the total power from high-powered PCIe devices is greater than one third of the sum of active power supply wattages. Proactive mode also includes the PCIe throttling features of Reactive mode.
The system will not perform PCIe throttling. Proactive thermal protections for unsupported high-temperature environments are limited to those supported by the high-powered PCIe devices.