Hyper-Threading Technology - HP Xw8200 - Workstation - 1 GB RAM Technical Reference Manual

configuration does not imply endorsement by the EPA. As an ENERGY STAR Partner, HP has
determined that products with the ENERGY STAR configuration meet the ENERGY STAR guidelines
for energy efficiency.
The ENERGY STAR Computers Program was created by the EPA to promote energy efficiency and
reduce air pollution through more energy-efficient equipment in homes, offices, and factories. HP
products achieve this by reducing the power consumption when not being used.
ENERGY STAR on HP Workstations uses ACPI power management. The system can wake as a result
of a user action (keyboard or mouse) or from the network or a modem.
The Power Management feature, when used in conjunction with an external ENERGY STAR-compliant
monitor, will support the power-down features of the monitor. The Power Management feature allows an
external monitor to go into low-power mode when the energy save timeout occurs.
CAUTION Using the Energy Save Monitor feature with non-ENERGY STAR-compliant monitors might
cause video distortion when the Energy Save timeout occurs.

Hyper-Threading Technology

Hyper-Threading Technology, developed by Intel®, enables a single processor to execute multiple
threads of instructions simultaneously. Hyper-Threading Technology enables the processor to utilize its
execution resources more efficiently, delivering performance increases and improving user productivity.
Not all systems benefit from the Hyper-Threading Technology.
To see if Hyper-Threading Technology can benefit you, test your system by turning the feature on. To do
this, run Computer Setup (F10) during the boot process and select Advanced>Processors>Hyper-
Threading, and enable the Hyper-Threading Technology.
NOTE The Hyper-Threading Technology is recommended for use with Windows XP systems. This
technology is detected by the system and is turned on in the operating system after it is enabled in the
system BIOS.
NOTE The Hyper-Threading Technology is not recommended for use with Windows 2000-based
workstations.
NOTE With the release of Red Hat Enterprise Linux WS 3.0, Hyper-Threading Technology is compatible
with Linux-based systems. Before this technology can be enabled, an SMP kernel must be installed on
your system.
For more information about the Hyper-Threading Technology, visit the Intel website at
http://www.intel.com.

HYPER-THREADING TECHNOLOGY 25