Penguin Computing R270-B2O, Technical Manual

Page: 74 / 126

- 73 - BIOS Setup
5-3-2-1 CPU P State Control
EIST (P-State)
Conventional Intel SpeedStep Technology switches both voltage and frequency in tandem between high
and low levels in response to processor load.
Options available: Enabled/Disabled. Default setting is
Enabled .
Turbo Mode
When this item is enabled, tje processor will automatically ramp up the clock speed of 1-2 of its
processing cores to improve its performance.
When this item is disabled, the processor will not overclock any of its core.
Options available: Enabled/Disabled. Default setting is
Enabled .
P-state coordination
In HW_ALL mode, the processor hardware is responsible for coordinating the P-state among logical
processors dependencies. The OS is responsible for keeping the P-state request up to date on all
logical processors.
In SW_ALL mode, the OS Power Manager is responsible for coordinating the P-state among logical
processors with dependencies and must initiate the transition on all of those Logical Processors.
In SW_ANY mode, the OS Power Manager is responsible for coordinating the P-state among logical
processors with dependencies and may initiate the transition on any of those Logical Processors.
Options available: HW_ALL/SW_ALL/SW_ANY. Default setting is
HW_ALL .