User's Manual

Using BIOS Setup 5-7
Active Trip Point controls the temperature of ACPI Active Trip Point –
the point in which OS will turn the CPU fan on.
Passive Cooling Trip Point controls the temperature of ACPI Passive
Trip Point – the point in which OS will begin throttling the CPU.
NOTE: If the DTS is enabled, only values below 97
O
C are valid.
Passive TC1/TC2 Value sets the TC1/TC2 values for the ACPI
Passive Cooling formula.
Passive TSP Value sets the TSP values for the ACPI Passive
Cooling formula. It represents in tenths of a second how often OS
will read the temperature when Passive Cooling is enabled.
Critical Trip Point controls the temperature of ACPI Critical Trip
Point – the point in which OS will shut the system off.
NOTE:
l 100
O
C is POR for all Intel CPUs.
l If value is greater than 100
O
C and DTS is enabled, the Out-of-Spec Bit will be
used.
l The EC value will be set to 127
O
C after ACPI initialization.
FACP – RTC S4 Flag Value is valid only for ACPI. Controls the value
for the RTC S4 Flag in the FACP Table.
FACP – PM Timer Flag Value is valid only for ACPI. Controls the
timer used by the OS through the FACP Table Flags. This is now possible
with Windows XP Service Pack 2 and beyond.
HPET Support is valid only in Windows XP. Controls the High
Performance Event Timer (HPET). When enabled, the HPET Table will
then be pointed to by the RSDT and the proper enable bits will be set.
HPET Base Address selects the Base Address for the HPET.
ALS Support sets the automatic display brightness. When enabled,
LCD backlight will automatically change according to ambient light
luminance for saving power.
EMA/MEF Support is valid only for ACPI. Controls the EMA/MEF
device in an ACPI environment.