Power Management And Temperature Control; Acpi Technology - Matrox Supersight Installation And Hardware Reference

66 Chapter 4: Power management and temperature control

Power management and temperature control

Matrox Supersight is compliant with both advanced configuration and power
interface (ACPI) technology and Enhanced Intel SpeedStep technology (EIST).
Combined, these two technologies assist with power management and
temperature control.
To configure ACPI and EIST for the Matrox Supersight unit, refer to Appendix
C: BIOS reference for Matrox Supersight SHB-5520.

ACPI technology

Matrox Supersight 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 Supersight 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 Supersight unit include:
• The ability for the unit to perform a complete shut-down, in which it will be
powered off automatically. This is helpful when, for example, thermal conditions
become excessive.
• Support for processor power management.
• Support for temperature management using active and passive cooling techniques.
❖ To maximize the performance of your PCIe boards (and in rare cases, their
stability), power management for PCIe boards and your Matrox Supersight are
disabled by default. It is not recommended to change these settings. Further
information is provided in the descriptions of the associated power management
BIOS items.