Disable CPU Power Saving Management in BIOS

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In some cases it is recommended to deactivate the power saving settings of the CPU in the BIOS.[1] In this article we will show you where to find the options and how to disable them, so that the power management options CPU P State Control and CPU C State Control are completely disabled in the BIOS.

This article disables the options on a Supermicro X10DRi motherboard with Intel Xeon E5 2620v4. For more information about the Power Saving settings, see Processor P-states and C-states.

Disable CPU Power Management

  1. During the boot process, press the Delete or Entf button (depending on your keyboard layout) to enter the BIOS
  2. Switch to -> Advanced CPU Configuration -> Advanced Power Management Configuration
  3. Change Power Technology to Custom and Energy Efficient Turbo to Disable.
  4. Switch to CPU P State Control, deactivate EIST (P-States) and Turbo Mode.
  5. Then switch to CPU C State Control, change Package C State Limit to C0/C1 state and deactivate CPU C3 Report, CPU C6 Report and Enhanced Halt State (C1E).

References

  1. Virtual machine application runs slower than expected in ESXi (1018206) (kb.vmware.com)

Author: Sebastian Köbke

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