User's Manual Part 2

2–14 Hardware and Software Guide
Power
DRAFT Revised: 8/24/04
File: Chap2.fm
PN: HP-367186-001
hp CONFIDENTIAL
August 24, 2004 4:01 pm
The power scheme you select determines how the processor
performs when the tablet PC is connected to external power or is
running on battery power. Each power scheme for external power
or battery power sets a specific processor state.
Different states may be used, depending on whether the tablet PC
is running on external or battery power. After a power scheme
has been set, no other intervention is required to control the
performance of your tablet PC processor. The following table
describes the processor performance on external and battery
power for the available power schemes.
Power Scheme
Processor
Performance While
on External Power
Processor
Performance While
on Battery Power
Home/Office Desk Always runs at the
highest performance
state.
Performance state is
determined based on
CPU demand.
Portable/Laptop Performance state is
determined based on
CPU demand.
Performance state is
determined based on
CPU demand.
Presentation Performance state is
determined based on
CPU demand.
Starts at lowest
performance state,
then uses linear
performance reduction
(stop-clock throttling)
as the battery
discharges.
367426-xx1.book Page 14 Tuesday, August 24, 2004 4:02 PM