to appologize right away; i've started to write drivers w/ RT11, VMS etc, but
then I got too old to do this stuff; now I find myself back in Win XP w/out
clue...

I found out:
sytem proc [4] handle 64h jumps into acpi.sys+10b10h when my CPU P4 2.4 Ghz
Northwood gets around 75C. Unfortunately it starts to consume continuously
50% of CPU power (Hyperthread active) and it does not go to sleep even if the
temp. goes down.
Amazingly, when I start e.g. Sandra or any other program which reads board
and CPU temp, the system proc. goes back to eventually running 1-2% every now
and then as before.
I AM NOT TALKING ABOUT THE SYSTEM IDLE PROC.
Award Bios 6 PG, EPOX Mob 4PDA2+, Win XP SR2 P4 2.4 Ghz Hyperth.active
I assume there is an event telling that the CPU gets hot; ACPI gets involved
and ACPI can than either not read the correct value from the BIOS or cannot
find any release criteria to understand that the temp event has gone away.
Could somebody illuminate my ignorance:
which event triggers the system proc [4] handle 64h to run
can somebody provide the sources of acpi.sys latest build
where can I find documentation, how acpi gets motherboard values for
temperature; I found a lot about power management, but not about temp.
sorry to bother
hk.