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25 24BAppendix B: BIOS Operation
Kontron User's Guide
coolMonster/PM
72
25.6
108B
Power Menu
In the BIOS Setup Utility, you can set up an Advance Power Management system (APM 1.2) to reduce the
amount of energy used after specified periods of inactivity. The setup menu supports:
®
Full On State
®
Standby State with Partial Power Reduction
®
Suspend State with Full Power Reduction
In addition you can enable an ACPI 1.0 support in the BIOS setup utility, if you intend to use an
operating system supporting the Advanced Configuration and Power Management Interface. For logical
reasons it is required to use an ATX power supply with the ACPI feature.
The following states are supported from the system:
®
S0 (Working)
®
S1 (Sleeping with processor context maintained)
®
S3 (Suspend to RAM)
®
S5 (Soft off)
The state S2 (sleeping with processor context not maintained) is not supported. The state S4 (Save to
Disk) is a matter of the used operating system.
25.6.1
167B
ACPI Resume Events
The following events resume the system from S1:
®
Power button
®
PME#
®
PS/2 keyboard and mouse
®
USB keyboard and mouse activity
®
USB resume event
The following events resume the system from S3:
®
Power button
Feature
Option
Description
Enable ACPI *
No
Yes
Enables/Disables ACPI BIOS (Advanced
Configuration and Power Interface). IRQ9 is used
for SCI (System Control Interrupt).
8
ACPI Control
sub menu
Opens the ACPI sub menu
8
Thermal Management
sub menu
Opens the Thermal Management sub menu
Max CPU frequency **
1800MHz
1600MHz
1400MHz
1200MHz
1000MHz
800MHz
Warning!
Selecting frequencies higher then the default
may cause the system to reach “critical trip
point” and shut down if a proper cooling solution
is not used. Always ensure that you use proper
cooling when selecting higher frequency
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