Intel D845GVFN Product Specification - Page 32

Power Management - display driver

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Intel Desktop Board D845GVFN Technical Product Specification 1.12.2 Fan Monitoring Fan monitoring can be implemented using Intel® LANDesk* Client Manager or third-party software. For information about The functions of the fan connectors Refer to Section 1.13.2.2, page 36 1.12.3 Chassis Intrusion and Detection The board supports a chassis security feature that detects if the chassis cover is removed. The security feature uses a mechanical switch on the chassis that attaches to the chassis intrusion connector. When the chassis cover is removed, the mechanical switch is in the closed position. 1.13 Power Management Power management is implemented at several levels, including: • Software support through Advanced Configuration and Power Interface (ACPI) • Hardware support: ⎯ Power connector ⎯ Fan connectors ⎯ LAN wake capabilities ⎯ Instantly Available PC technology ⎯ Resume on Ring ⎯ Wake from USB ⎯ Wake from PS/2 devices ⎯ Power Management Event signal (PME#) wake-up support 1.13.1 ACPI ACPI gives the operating system direct control over the power management and Plug and Play functions of a computer. The use of ACPI with this board requires an operating system that provides full ACPI support. ACPI features include: • Plug and Play (including bus and device enumeration) • Power management control of individual devices, add-in boards (some add-in boards may require an ACPI-aware driver), video displays, and hard disk drives • Methods for achieving less than 15-watt system operation in the power-on/standby sleeping state • A Soft-off feature that enables the operating system to power-off the computer • Support for multiple wake-up events (see Table 13 on page 34) • Support for a front panel power and sleep mode switch Table 11 lists the system states based on how long the power switch is pressed, depending on how ACPI is configured with an ACPI-aware operating system. 32

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Intel Desktop Board D845GVFN Technical Product Specification
32
1.12.2
Fan Monitoring
Fan monitoring can be implemented using Intel
®
LANDesk* Client Manager or third-party
software.
For information about
Refer to
The functions of the fan connectors
Section 1.13.2.2, page 36
1.12.3
Chassis Intrusion and Detection
The board supports a chassis security feature that detects if the chassis cover is removed.
The
security feature uses a mechanical switch on the chassis that attaches to the chassis intrusion
connector.
When the chassis cover is removed, the mechanical switch is in the closed position.
1.13 Power Management
Power management is implemented at several levels, including:
•
Software support through Advanced Configuration and Power Interface (ACPI)
•
Hardware support:
⎯
Power connector
⎯
Fan connectors
⎯
LAN wake capabilities
⎯
Instantly Available PC technology
⎯
Resume on Ring
⎯
Wake from USB
⎯
Wake from PS/2 devices
⎯
Power Management Event signal (PME#) wake-up support
1.13.1
ACPI
ACPI gives the operating system direct control over the power management and Plug and Play
functions of a computer.
The use of ACPI with this board requires an operating system that
provides full ACPI support.
ACPI features include:
•
Plug and Play (including bus and device enumeration)
•
Power management control of individual devices, add-in boards (some add-in boards may
require an ACPI-aware driver), video displays, and hard disk drives
•
Methods for achieving less than 15-watt system operation in the power-on/standby
sleeping state
•
A Soft-off feature that enables the operating system to power-off the computer
•
Support for multiple wake-up events (see Table 13 on page 34)
•
Support for a front panel power and sleep mode switch
Table 11 lists the system states based on how long the power switch is pressed, depending on how
ACPI is configured with an ACPI-aware operating system.