To Manage Power Manually - HP Pavilion XZ335 Reference Manual

Batteries and Power Management
Managing Power Consumption
Managing CPU power
If your notebook contains a multispeed processor with Intel SpeedStep Technology, the
processor can automatically switch to lower, power-saving speeds or to higher-
performance speeds according to its workload and power source.
You can customize SpeedStep to best suit your working environment: click Start, Control
Panel, Performance and Maintenance, Power Options. On the Power Schemes tab, select
a power scheme. This scheme automatically controls the processor speeds:
• The Max Battery scheme uses the lowest processor speeds while running on battery
• The Portable/Laptop option uses medium and high processor speeds on battery and
• The Presentation option uses the lowest processor speeds on battery and AC power.

To manage power manually

In addition to allowing the notebook to enter its power-saving modes automatically, you
can also put it into any of the following three modes whenever you need to.
Power mode Does this...
Standby
Maintains your current
session in RAM, and turns off
the display and other
components.
Hibernation Saves the current session to
disk, then shuts down.
Provides maximum power
savings while still allowing
you to recover the current
session.
Off
Turns off your notebook,
providing maximum power
savings. The current session
will not be saved, and any
unsaved data will be lost.
You can also turn off the display by closing the lid.
In addition, you can configure the notebook so that closing the lid or pressing the power
button puts the notebook on standby or into hibernation, or turns it off—see "To manage
power manually" on page 48.
48
power, but uses medium and high processor speeds on AC power.
AC power.
Reference Guide
Use when... To enter this mode...
You will be away Click Start, Turn Off Computer,
from your notebook Stand By
for up to several – or –
hours. press the power button.
You will be away Click Start, Turn Off Computer,
from your notebook then press and hold Shift and click
Hibernate.
for a day or more,
but want to
continue your
session.
You're done with Click Start, Turn Off Computer,
your work.
Turn Off.
– or –
press and hold the power button
for about four seconds. (Do this
only if the Start menu procedure
doesn't work.)