>Both active and passive cooling is triggered to BIOS<
See: Windows 98 Does Not Support ACPI Passive Cooling Mode
"Windows 98 does not provide support for Passive Cooling Mode as described in the Advanced Configuration and Power Interface (ACPI) specification. Windows 98 only supports...
Beatle:
I think I found the answer to your question via Intel pub.
Intel® Pentium® 4 Processor
In the 423-pin Package
Thermal Design Guidelines
8.5.1 Thermal Diode
The processor thermal diode should not be relied upon to turn on fans, warn of processor cooling system failure...
Yes, the BIOSes today should have ACPI down pat, but the OSs I wonder. I was looking through ACPI specs (cited earlier) for OS, and it can be done via OS, but there would have to be a thermal spec database (I think) for each motherboard model (like Video Cards). I just don't have the time to...
<<The P4 does that via its internal hardware, you don't even need ACPI for it.>>
Yes, P4 does....but the question is does your motherboard, bios, and OS correctly implement ACPI standard today?
Do you hear your fans [CPU/Pwr/Case] changing speeds, or do they run same speed always?
<<Originally posted by: stevty2889
Thermtrip# is what I believe shuts down the CPU>>
<<Nope. The CPU clocks are controlled by the CPU>>
===============================
First poster is correct..."The processor protects itself from catastrophic overheating by use of an internal thermal...
<AFAIK, there is no way to disable or modify the thermal throttling>
ACPI specs is what handles this process via talking to Bios, but Microsoft didn't get their act together on Win98 OS.
WinXP most likely does...have not checked it to make sure. Also, the motherboard's bios must have...
<<<AFAIK, there is no way to disable or modify the thermal throttling. This is done in hardware, entirely inside the CPU. You couldn't turn it off even if you wanted to. >>>
Throttling can be controled, but...from Intel
"If automatic mode is disabled the processor will be operating out of...
>>My question is if the temp readings are inaccurate<<
Here is some tidbit info:
In the Intel® Pentium® 4 Processor Datasheet (423 pin), Intel notes:
7.3.1 Thermal Diode
The Pentium 4 processor incorporates an on-die thermal diode. A thermal sensor located on the
system board may...
<<<Thermal management, even when supervised by Windows,
>> runs through the ACPI "Thermal Zone" objects
See:
Advanced Configuration & Power Interface
ADVANCED CONFIGURATION AND POWER INTERFACE SPECIFICATION
Revision 3.0, September 2, 2004
http://www.acpi.info/spec.htm
Long story...
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