Is 40 degrees Celcius too hot for CPU?
Posted 02 April 2008 - 06:54 PM
Posted 02 April 2008 - 07:14 PM
Posted 02 April 2008 - 10:09 PM
Posted 03 April 2008 - 02:54 AM
Posted 03 April 2008 - 08:00 PM
(A) Tcase is acquired on the CPU Die from the CPU Case Thermal Diode as an analog level, which is converted to a digital value by the super I/O chip on the motherboard. The digital value is Calibrated in BIOS and displayed by temperature software. BIOS can affect the accuracy of Tcase.
(B) Tjunction is acquired within the Cores from Thermal Diodes as analog levels which are converted to digital values by the Digital Thermal Sensors (DTS) within each Core. The digital values are factory Calibrated and displayed by temperature software. BIOS does not affect the accuracy of Tjunction.
Intel does not read T junction so you are reading the Tcase numbers. For your information, T junction is usually 5 ° higher than Tcase.
You will really notice if your CPU is getting too hot because they start throttling down in speed as they get close to the limit temp. If they get too hot they will shut the computer off to keep from frying. AMD cpu's do not do this.
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