Technical white paper

HPE ProLiant Server Power Management


Power management is crucial to data center power provisioning. This document provides a brief overview of the processor-based power-saving features supported on HPE ProLiant Gen10 servers, and the power management features that are embedded in HPE ProLiant servers. This document also discusses how these features are used and their relationship to the Red Hat Enterprise Linux 6.x (RHEL 6.x), RHEL 7.x, SUSE Linux Enterprise Server 11 (SLES 11), SLES 12, and SLES 15 operating systems. It includes new features available with HPE ProLiant Gen10 Intel-based servers and AMD-based servers.


The RHEL 6.x, RHEL 7.x, SLES 11, SLES 12, and SLES 15 operating systems running on HPE ProLiant Gen10 servers use processor-based features to achieve better power efficiency. These processor-based features include the following:
  • Performance states (P-states) define a set of fixed operating frequencies and voltages, where P0 represents the highest operating frequency and voltage. You can save power by entering P-states with lower frequency and voltage levels. Either the platform firmware or the operating system controls the P-states.