Select the desired memory speed. Maximum performance mode maximizes
performance. Balanced mode offers a balance between performance and
power. Minimal power mode maximizes power savings.
-
Memory Power Management
Select this choice to enable or disable power management on memory. If
you choose Disabled, it will provide maximum performance but minimum
power savings. If you choose Automatic, it is suitable for most applications.
-
Proc Performance States
Select this choice to enable or disable processor performance states.
Enabling processor performance states (Intel Speedstep Technology) saves
power by reducing speed and voltage as the microprocessor utilized is
reduced.
Note:
Some operating systems must have the correct power profile selected
to take advantage of this feature.
-
C1 Enhance Mode
Select this choice to enable or disable C1E (C1 Enhanced) state. Enabling
C1E (C1 Enhanced) state can save power by halting CPU cores that are
idle.
Note:
An operating system that supports C1E state must be installed to
take advantage of this feature. Changing this setting will be effective after
the next system reboot.
-
QPI Link Frequency
Select this choice to determine the desired microprocessor QPI link
frequency. Maximum performance mode maximizes performance. Balanced
mode offers a balance between performance and power. Minimal power
maximizes power savings.
-
Turbo Mode
Select this choice to enable or disable turbo mode. Enabling turbo mode
can boost the overall microprocessor performance when all microprocessor
cores are not fully utilized. A microprocessor core can run above its rated
frequency for a short period of time when it is in turbo mode.
-
CPU C-States
Select this choice to enable or disable ACPI C2 Processor Power states. It
will be effective after the next system reboot.
-
Package ACPI CState Limit
Select this choice to determine the level of C-state. Selecting a higher
C-state limit allows the microprocessors to consume less power when they
are idle. If you experience problems with legacy operating systems, set the
ACPI Cstate limit to C2.
-
Power/Performance Bias
Select this choice to determine how the power management of the
microprocessor is controlled. You can choose either Platform Controlled
(system) or OS Controlled (operating system) to control the setting. Not all
operating systems support this feature.
-
Platform Controlled Type
Select this choice to determine how to balance between performance and
power consumption. Choosing Maximum Performance will disable power
management functions and allow the most aggressive use of turbo.
94
System x3650 M4 BD Type 5466: Installation and Service Guide
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