Power Management And Temperature Control - Matrox 4Sight X Installation And Hardware Reference

ACPI technology
Enhanced Intel
SpeedStep
technology

Power management and temperature control

Matrox 4Sight X is compliant with advanced configuration and power interface
(ACPI) technology. This technology monitors how the BIOS, operating system,
and peripheral devices communicate with each other about power usage. ACPI
allows the Matrox 4Sight X unit to conserve energy by transitioning unused
devices into lower power states. ACPI components gather information about
power consumption from the unit and pass this information onto the operating
system. The operating system then manages power to the unit's different
components on an as-needed basis.
The ACPI features implemented in the Matrox 4Sight X unit include:
• The ability for the unit to perform a complete shut-down, in which it will be
powered off automatically.
• Support for a S4 sleeping state, for which the operating system can be enabled or
disabled to automatically wake the unit from hibernation mode.
• Support for processor power management.
• Support for temperature management using active and passive cooling techniques.
The Intel Celeron 550 and Intel Core 2 Duo T7500 processors use Enhanced
Intel SpeedStep technology (EIST) to enable very high performance while also
meeting the power-conservation needs of the Matrox 4Sight X unit. The
operating system dynamically adjusts processor voltage and core frequency (CPU
speed) based on the CPU's demand for processing power. This results in decreased
average power consumption and decreased average heat production.
For more information on configuring ACPI and EIST for the Matrox 4Sight X
unit, refer to Appendix A: BIOS reference.
Power management and temperature control 103