Intel® Pentium® Silver and Intel® Celeron® Processors Datasheet, Volume 1


ID 633935
Date 17/06/2021 00:00:00
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Thermal Trip Signal (PCHHOT_N)

The PCH provides PCHHOT_​N signal to indicate that it has exceeded some temperature limit. The limit is set by BIOS. The temperature limit (programmed into the PHL register) is compared to the present temperature. If the present temperature is greater than the PHL value then the pin is asserted.

PCHHOT_​N is an O/D output and requires a Pull-up on the motherboard.

The PCH evaluates the temperature from the thermal sensor against the programmed temperature limit every one second.