Copyright
©
2010
congatec
AG
QTOPm14
38/80
• T
t
is the target temperature = critical trip point
• The two coefficients TC1 and TC2 and the sampling period TSP are hardware dependent constants. These constants are set to fixed values
for the conga-QA6:
• TC1= 1
• TC2= 5
• TSP= 5 seconds
See section 12 of the ACPI Specification 2.0 C for more information about passive cooling.
7.3
ACPI Suspend Modes and Resume Events
conga-QA6 supports the S3 (STR= Suspend to RAM) power state. For more information about S3 wake events see section 10.5.7 “ACPI
Configuration Submenu”. S4 (Suspend to Disk) is not supported by the BIOS (S4_BIOS) but it is supported by some operating systems
(S4_OS= Hibernate). Check with the operating system vendor to determine if S4 (Suspend to Disk) is supported.
This table lists the “Wake Events” that resume the system from S3 unless otherwise stated in the “Conditions/Remarks” column:
Table 9
Wake Events resuming system from S3
Wake Event
Conditions/Remarks
Power Button
Wakes unconditionally from S3 and S5.
Onboard LAN Event
Device driver must be configured for Wake On LAN support. Featured must be enabled in BIOS setup.
PCI Express WAKE#
Wakes unconditionally from S3.
Watchdog Power Button Event Wakes unconditionally from S3 and S5.
Note
The above list has been verified using a Windows XP SP3 ACPI enabled installation.
