Advanced Configuration and Power Interface Specification

Thermal Management
Element Object Type Description
AC2MaxLevel
AC3MaxLevel
AC4MaxLevel
AC5MaxLevel
AC6MaxLevel
AC7MaxLevel
AC8MaxLevel
AC9MaxLevel
Integer
(DWORD)
Integer
(DWORD)
Integer
(DWORD)
Integer
(DWORD)
Integer
(DWORD)
Integer
(DWORD)
Integer
(DWORD)
Integer
(DWORD)
Indicates the maximum fans speed level in percent (0-100) that OSPM
may engage on the SourceDevice when a temperature exceeds the
_AC2 trip point value.
A value of 0xFFFFFFFF in this field indicates that the SourceDevice is not
to be engaged for the trip point.
Indicates the maximum fans speed level in percent (0-100) that OSPM
may engage on the SourceDevice when a temperature exceeds the
_AC3 trip point value.
A value of 0xFFFFFFFF in this field indicates that the SourceDevice is not
to be engaged for the trip point.
Indicates the maximum fans speed level in percent (0-100) that OSPM
may engage on the SourceDevice when a temperature exceeds the
_AC4 trip point value.
A value of 0xFFFFFFFF in this field indicates that the SourceDevice is not
to be engaged for the trip point.
Indicates the maximum fans speed level in percent (0-100) that OSPM
may engage on the SourceDevice when a temperature exceeds the
_AC5 trip point value.
A value of 0xFFFFFFFF in this field indicates that the SourceDevice is not
to be engaged for the trip point.
Indicates the maximum fans speed level in percent (0-100) that OSPM
may engage on the SourceDevice when a temperature exceeds the
_AC6 trip point value.
A value of 0xFFFFFFFF in this field indicates that the SourceDevice is not
to be engaged for the trip point.
Indicates the maximum fans speed level in percent (0-100) that OSPM
may engage on the SourceDevice when a temperature exceeds the
_AC7 trip point value.
A value of 0xFFFFFFFF in this field indicates that the SourceDevice is not
to be engaged for the trip point.
Indicates the maximum fans speed level in percent (0-100) that OSPM
may engage on the SourceDevice when a temperature exceeds the
_AC8 trip point value.
A value of 0xFFFFFFFF in this field indicates that the SourceDevice is not
to be engaged for the trip point.
Indicates the maximum fans speed level in percent (0-100) that OSPM
may engage on the SourceDevice when a temperature exceeds the
_AC9 trip point value.
A value of 0xFFFFFFFF in this field indicates that the SourceDevice is not
to be engaged for the trip point.
In the case multiple active cooling trip points have been exceeded and _ART entries indicate various
maximum limits for the same SourceDevice, OSPM may operate the SourceDevice up to the highest
ACxMaxLevel value indicated for all exceeded trip points.
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