# Tx1 thermal sensor location 

**URL:** <https://forums.developer.nvidia.com/t/tx1-thermal-sensor-location/43348>\
**Category:** Jetson TX1\
**Created:** [June 17, 2016, 6:55am UTC](https://forums.developer.nvidia.com/t/tx1-thermal-sensor-location/43348 "2016-06-17T06:55:15Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![vincent-pega](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@vincent-pega](https://forums.developer.nvidia.com/u/vincent-pega)\
**Post date:** [June 17, 2016, 6:55am UTC](https://forums.developer.nvidia.com/t/tx1-thermal-sensor-location/43348/1 "2016-06-17T06:55:15Z")

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hi NV:

i found Tx1 has 8 thermal zone can read temp. could you show where are these 8 sensor location??

zone0  
AO-therm  
zone1  
CPU-therm  
zone2  
GPU-therm  
zone3  
PLL-therm  
zone4  
PMIC-Die  
zone5  
Tdiode\_tegra  
zone6  
Tboard\_tegra  
zone7  
thermal-fan-est.38

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**Author:** ![kayccc](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/kayccc/32/14043_2.png) [@kayccc](https://forums.developer.nvidia.com/u/kayccc)\
**Post date:** [June 20, 2016, 8:31am UTC](https://forums.developer.nvidia.com/t/tx1-thermal-sensor-location/43348/2 "2016-06-20T08:31:49Z")

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Hi vincent-pega,

Please check Tegra X1 (SoC) Technical Reference Manual section 40.2.

Doc link:  
[url][http://developer.nvidia.com/embedded/dlc/tegra-x1-technical-reference-manual[/url]](http://developer.nvidia.com/embedded/dlc/tegra-x1-technical-reference-manual%5B/url%5D)

Thanks

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<div class="post-metadata">

**Author:** ![CalmCar](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/calmcar/32/11119_2.png) [@CalmCar](https://forums.developer.nvidia.com/u/CalmCar)\
**Post date:** [September 18, 2017, 8:17am UTC](https://forums.developer.nvidia.com/t/tx1-thermal-sensor-location/43348/3 "2017-09-18T08:17:26Z")

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@kayccc

Could you tell me what do AO-therm,PLL-therm,PMIC-Die,Tdiode\_tegra and Tboard\_tegra mean?Thanks

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**Author:** ![Trumany](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/trumany/32/14043_2.png) [@Trumany](https://forums.developer.nvidia.com/u/Trumany)\
**Post date:** [September 20, 2017, 4:47am UTC](https://forums.developer.nvidia.com/t/tx1-thermal-sensor-location/43348/4 "2017-09-20T04:47:57Z")

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AO: always on,  
PLL: phase locking loop,  
PMIC: power management IC,  
Tdiode: temperature of thermal diode in chip,  
Tboard: temperature of board read from a thermal diode on board.