Processor Performance Controls - HP Pavilion dv9000 - Entertainment Notebook PC User Manual

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Processor performance controls

CAUTION
surface. Do not allow another hard surface, such as a printer, or a soft surface, such as pillows,
thick rugs, or clothing, to block the airflow. Overheating can damage the computer and reduce
processor performance.
NOTE
battery power. If the battery power is extremely low, the computer may attempt to conserve power
by reducing processor speed and graphics performance.
Windows XP enables you to manage the processor performance controls by selecting a power scheme.
The processing speed can be set for optimal performance or for optimal power conservation.
Processor performance controls are managed in the Power Options Properties dialog box.
To access Windows XP processor performance controls:
Select Start > Control Panel > Performance and Maintenance > Power Options.
▲
The power scheme you select determines how the processor performs when the computer is plugged
into external power or is running on battery power. Each power scheme for external power or battery
power sets a specific processor state.
After a power scheme has been set, no other intervention is required to control the performance of the
computer processor. The following table describes the processor performance on external and battery
power for the available power schemes.
Power scheme
Home/Office Desk
Portable/Laptop (default) *
Presentation
Always On
Minimal Power Management Performance state is determined based on
ENWW
To prevent overheating, do not obstruct vents. Use the computer only on a hard, flat
In some cases, a computer may operate at a higher speed on external power than on
Processor performance while on external
power
Always runs at the highest performance
state.
Performance state is determined based on
CPU demand.
Performance state is determined based on
CPU demand.
Always runs at the highest performance
state.
CPU demand.
Processor performance while on battery
power
Performance state is determined based on
CPU demand.
Performance state is determined based on
CPU demand.
Performance state is determined based on
CPU demand.
Always runs at the highest performance
state.
Performance state is determined based on
CPU demand.
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