Home > Servers > PowerEdge Components > White Papers > Dell 15G PowerEdge Acoustical Experience and Dependencies > Sound Cap
Sound cap is an iDRAC system profile which provides some system performance capping to achieve reduced acoustics without sacrificing reliability. When sound cap is enabled, acoustics are reduced at the expense of system performance. Designed for scenarios in which the server is redeployed from a data center into a noise-sensitive environment, Sound Cap results in limits to acoustical output by applying a power-capping percentage to the CPU(s). The power cap reduces heat generated by the CPUs during high utilization, which reduces fan speed needed for CPU cooling, which in turn reduces acoustical output.
Sound Cap may be useful in the following scenarios:
Sound Cap applies a percentage-based power cap to the CPU(s) in the server. Sound Cap can limit acoustical output, and it does not impact system cooling performance or any component thermal reliability. It also will not impact fan speeds in moderate CPU workloads or when the system is in idle state. Sound Cap should not be used or may be ineffective in the following scenarios:
Sound Cap is enabled in System Settings of the iDRAC GUI or in iDRAC settings within the BIOS setup. Additional information about Sound Cap feature in iDRAC can be found in the white paper Enabling Sound Cap in PowerEdge 14G Servers.