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QUADMO747-E6xx
Page 28
User Manual - Rev. First Edition: 1.0 - Last Edition: 1.2- Author: S.B. - Reviewed by G.M.
4.5 Power Management
After the selection of this submenu, it will appear the following table:
The selections above shown are an example and they can be different from the default values.
4.5.1 ACPI tables
This option allows enabling or disabling ACPI tables, used in power management from the
Operative System to administrate different power states.
4.5.2 Hyper Threading
This feature has to be used to enable or disable HyperThreading capabilities of the CPU.
4.5.3 SpeedStep
This option allows you to enable or disable Speed Step functionality, i.e. the possibility for the
board to vary CPU operative frequency, according to augmented or reduced workload, in order to
decrease power consumption when the CPU is not idle.
4.5.4 C-States Handling
Use this option to enable or disable the handling of CPU's C-States from the O.S.
LID wake configuration
4.5.5
On notebook systems, it is typical that when the notebook is closed, the display is shut down and
the system is in a Suspend state. By correctly setting this option, it is possible to specify if the
system has to detect a closure event when Lid signal is at High or Low level.
4.5.6 Power Failure Resume Type
This option allows you to determine how the board must act after a power failure event: in case the
option is "Always ON", the board will start every time the power supply is present; when the option
is "Always OFF", the board will not start automatically when the power supply returns.
Finally, with Last State option, the board will remember its state before power failure event. In this
way, when power supply returns, the board will start automatically if it was turned on, and will
remain off if it was turned off.
Copyright © 2012 SECO s.r.l.
QUADMO747-E6xx
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