User`s guide

Copyright © 2008 congatec AG B915m10 67/92
ACPI Conguration Submenu9.4.1
Feature Options Description
ACPI Aware O/S No
Yes
Set this value to allow the system to utilize the Intel ACPI (Advanced Conguration and Power Interface).
Set to NO for non ACPI aware operating system like DOS and Windows NT.
Set to YES if your OS complies with the ACPI specication (e.g. Windows 2000, XP)
ACPI 2.0 Features No
Yes
Enable or disable extended ACPI 2.0 features.
System Off Mode G3/Mech Off
S5/Soft Off
Select the actual power down mode when the system performs a shutdown with a congatec battery system connected.
Note: This node is only visible when the system is connected to a congatec battery system.
ACPI APIC support Enabled
Disabled
Set to enable to include the APIC support table to ACPI.
Suspend mode S1 (POS)
S3 (STR)
Select the state used for ACPI system suspend.
Repost Video on S3 Resume No
Yes
Determines whether to invoke VGA BIOS post on S3 resume (required by some OS to re-initialize graphics).
USB Device Wakeup From S3/S4 Disabled
Enabled
Enable or disable USB device wakeup from S3 and S4 state.
Active Cooling Trip Point Disabled
50, 60, 70, 80, 90°C
Species the temperature threshold at which the ACPI aware OS turns the fan on/off.
Passive Cooling Trip Point Disabled
50, 60, 70, 80, 90°C
Species the temperature threshold at which the ACPI aware OS starts/stops CPU clock throttling.
Critical Trip Point Disabled, 80, 85, 90,
95, 100, 105, 110°C
Species the temperature threshold at which the ACPI aware OS performs a critical shutdown.
Watchdog ACPI Event Shutdown
Restart
Select the event that is initiated by the watchdog ACPI event. When the watchdog times out a critical but orderly OS
shutdown or restart can be performed (see note below).
Note
In ACPI mode it is not possible for a “Watchdog ACPI Event” handler to directly restart or shutdown the OS. For this reason the congatec BIOS
will do one of the following:
For Shutdown: An over temperature notication is executed. This causes the OS to shut down in an orderly fashion.
For Restart: An ACPI fatal error is reported to the OS.
It depends on your particular OS as to how this reported fatal error will be handled when the Restart function is selected. If you are using
Windows XP/2000 there is a setting that can be enabled to ensure that the OS will perform a restart when a fatal error is detected. After a very
brief blue-screen the system will restart.
You can enable this setting buy going to the “System Properties” dialog box and choosing the “Advanced” tab. Once there choose the “Settings”
button for the “Startup and Recovery” section. This will open the “Startup and Recovery” dialog box. In this dialog box under “System failure”
there are three check boxes that dene what Windows will do when a fatal error has been detected. In order to ensure that the system restarts