Linux Temperature Info: Difference between revisions
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Most ThinkPads include six or more separate temperature sensors but only expose the CPU temperature through the standard ACPI methods. This feature shows readings from up to eight different sensors on older ThinkPads, and up to sixteen different sensors on newer ThinkPads. Readings from sensors that are not available return -128. | Most ThinkPads include six or more separate temperature sensors but only expose the CPU temperature through the standard ACPI methods. This feature shows readings from up to eight different sensors on older ThinkPads, and up to sixteen different sensors on newer ThinkPads. Readings from sensors that are not available return -128. | ||
The mapping of thermal sensors to physical locations varies depending on system-board model. It can be found here | The mapping of thermal sensors to physical locations varies depending on system-board model. It can be found here: http://thinkwiki.org/wiki/Thermal_Sensors. | ||
==T500 Temperature Sensors== | |||
Index in "thermal" Location | |||
Index in "thermal" Location | 1 CPU (also via ACPI THM0) | ||
1 CPU (also via ACPI THM0) | 2 ? (very similar to HDD smart temp) | ||
2 ? (very similar to HDD smart temp) | 3 ? (also via ACPI THM1) | ||
3 ? (also via ACPI THM1) | 4 n/a | ||
4 n/a | 5 Main Battery A | ||
5 Main Battery A | 6 n/a (probably Second Battery A) | ||
6 n/a (probably Second Battery A) | 7 Main Battery B | ||
7 Main Battery B | 8 n/a (probably Second Battery B) | ||
8 n/a (probably Second Battery B) | 9 ? (possibly (integrated) GPU) | ||
9 ? (possibly (integrated) GPU) | 10 ? | ||
10 ? | 11 ? (possibly heatsink) | ||
11 ? (possibly heatsink) | 12 n/a | ||
12 n/a | 13 n/a | ||
13 n/a | 14 n/a | ||
14 n/a | 15 n/a | ||
15 n/a | 16 n/a | ||
16 n/a | |||
Revision as of 03:58, 5 June 2018
External
- https://www.cyberciti.biz/faq/howto-linux-get-sensors-information/
- https://superuser.com/questions/25176/how-can-i-monitor-the-cpu-temperature-under-linux
- http://www.thinkwiki.org/wiki/Thermal_Sensors
Internal
Temperature Monitoring with ACPI
The details below apply to Linux running on Thinkpads.
cat /proc/acpi/ibm/thermal
Most ThinkPads include six or more separate temperature sensors but only expose the CPU temperature through the standard ACPI methods. This feature shows readings from up to eight different sensors on older ThinkPads, and up to sixteen different sensors on newer ThinkPads. Readings from sensors that are not available return -128.
The mapping of thermal sensors to physical locations varies depending on system-board model. It can be found here: http://thinkwiki.org/wiki/Thermal_Sensors.
T500 Temperature Sensors
Index in "thermal" Location 1 CPU (also via ACPI THM0) 2 ? (very similar to HDD smart temp) 3 ? (also via ACPI THM1) 4 n/a 5 Main Battery A 6 n/a (probably Second Battery A) 7 Main Battery B 8 n/a (probably Second Battery B) 9 ? (possibly (integrated) GPU) 10 ? 11 ? (possibly heatsink) 12 n/a 13 n/a 14 n/a 15 n/a 16 n/a