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Power Button
You can use the ACPI feature to configure the function of the Microsoft Windows 2000, and Windows XP operating systems.
Power Button Functions for Windows 2000 and Windows XP With ACPI Enabled
Power Button Functions for Windows 2000 and Windows XP With ACPI Disabled
Hung Computer
If the computer does not turn off when you press the power button, the computer may be hung. Press and hold the power button until the computer turns off
completely (this process may take several seconds). If the computer is hung and the power button fails to function properly, unplug the AC power cable from
the computer, wait for the computer to completely stop running, and plug in the AC power cable. If the computer does not restart, press the power button to
restart the computer.
Hyper-Threading
Hyper-Threading is an Intel®technology that can enhance overall computer performance by allowing one physical microprocessor to function as two logical
microprocessors, capable of performing certain tasks simultaneously. It is recommended that you use the Microsoft®Windows®XP SP1 or later operating
system because Windows XP is optimized to take advantage of Hyper-Threading technology. While many programs can benefit from Hyper-Threading, some
programs have not been optimized for Hyper-Threading and may require an update from the software manufacturer. Contact the software manufacturer for
updates and information about using Hyper-Threading with your software.
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NOTICE: To turn off your computer, perform an orderly computer shutdown when possible.
Action
Results
Computer Turned
On
and ACPI Enabled
Computer
in Standby
Mode
Computer
Turned Off
Press
power
button
Computer goes into
standby mode or
turns off (depending
on the operating
system setup)
Computer
turns on
Boots and
computer
turns on
Hold
power
button
for 6
seconds*
Computer turns off
Computer
turns off
Boots and
computer
turns on
*Pressing or holding the power button to shut down the
computer may result in data loss. Use the power button to
shut down the computer only if the operating system is not
responding.
Action
Results
Computer
Turned On and
ACPI Disabled
Computer in
Suspend
Mode
Computer
Turned Off
Press
power
button
Computer
turns off
immediately
Computer
turns off
immediately
Boots and
computer
turns on
Hold power
button for 6
seconds*
Computer
turns off
Computer
turns off
Boots and
computer
turns on
*Pressing or holding the power button to shut down the
computer may result in data loss. Use the power button to
shut down the computer only if the operating system is not
responding.