In Aida64 extreme I enabled the sensor symbols in the 
system tray. When the program starts, the GPU temperature 
and the GPU ambient temperature are shown correctly for 
a short time. However, when the values are refreshed 
the first time, those values are shown as zero. It does 
not change anymore. 
I do remember that I had the same issue with either 
Aida32 or Everest years ago. Unfortunately I only 
remember that it could be fixed, but I forgot completely  
how. 
Now it is back in AIDA64. Can you please tell me what to  
do? Is it something I have to change or is it a bug 
which will be fixed in a later release? 
BTW, in the latest version of Everest the GPU temperatures 
are monitored correctly on the same hardware. 
If you need further information (hardware, ...) let me know.