Kontron KTLX800-pITX Manual de usuario descargar pdf (Pagina 20)

KTD-S0023-A Page 17 ACPI Thermal Management

KTLX800/pITX Software Guide

6 ACPI Thermal Management

The ACPI thermal management supports one mode: active cooling (no performance loss, but noise produc-

tion).

6.1 Active Cooling

The operating system continuously polls the temperature using the ACPI method '_TZP' (Thermal Zone

olling). This is done automatically by Linux - for Windows

operating systems an additional tool is needed

as Windows

ignores the ACPI method '_TZP'.

For example the tool

CPUID HWMonitor Vers. 1.14.0 or greater

can be used.

This approach accounts the total control of the fan through the temperature control and the fan can not be

switched seperatly on and off by the ACPI methods. This is only possible when inside the BIOS Setup the

setting Advanced/ACPI Configuration/ACPI Cooling Options/Active Trip Point is set to Disabled.

6.2 Temperature Limits

Both trip points have the setting Disabled. This is not a real deactivating of the trip points but the corres-

ponding value is set to 125°C which is the internal catastrophic temperature.

6.3 Temperature Identifier

Within operating systems (e.g. Linux) the temperature can be determined through the identifier THRM:

cat /proc/acpi/thermal_zone/THRM/temperature

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 36 37

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