Acer Aspire 4520 Service Manual page 55

Power
The Power screen displays a summary of your computer power settings, and also includes advanced setup
parameters. It allows the user to enable and disable the power management options on the computer and
specify standard power parameters for specific components.
Information
C State Configuration
C1E Configuration
CPU Throttle :
CPU Spread Spectrum : [0.50% H.Kiss Up]
iGPU Spread Spectrum : [2.00% Triangular Center]
SATA Spread Spectrum : [Triangular Down]
SATA Spread Spectrum : [Triangular Down]
PState Configuration
USB CSC Resume
DIPM
HIPM
PCI Clocks :
AltVid
Power Saver
ASPM (L0s/L1)
F1 Help
Exit
Esc
The table below describes the parameters in this screen. Settings in boldface are the default and suggested
parameter settings.
Parameter
C State Configuration
C1E Configuration
CPU Throttle
CPU Spread Spectrum
iGPU Spread Spectrum
SATA Spread Spectrum
PState Configuration
USB CSC Resume
DIPM
HIPM
Chapter 2
PhoenixBIOS Setup Utility
Main Security
[Auto]
[Auto]
[Disabled]
[Enabled]
[Disabled]
[Disabled]
[Enabled]
[Enabled]
[Disabled]
[Enabled]
Select Item
Select Menu
Description
Enables, disables the CPU throttle, to increase
CPU speed and performance.
Enables, disables USB CSC resume.
Enables, disables device initiated power
management on the hard disk.
Boot Power
F5/F6 Change Values
Enter Select Sub-Menu
Exit
Item Specific Help
Enable or Disable
C2/C3 CPU power states.
Auto enables C2 and C3
if single core is
detected and disables
C2+C3 if dual
core is detected.
F9 Setup Defaults
F10 Save and Exit
Format/Option
Disabled
or Enabled
Enabled
or Disabled
Disabled
or Enabled
Disabled
or Enabled
Enabled
or Disabled
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