Good day, guys! We just finished testing new revision of our UT3 pcba board and also testing device working with cooler on heatsink. It gave us ability to change stock cpu frequency from 1.6Ghz to 2Ghz with 100Mhz step, without any overheat. Let watch what we have as results:

Ugoos UT3 pcba

Non-contact thermometer:

Miniature fan:

Results of our testing:

1. 1.608 GHz. 

The temperature in idle 50 
Antutu: heatsink temperature 67, the temperature of the back of the PCB - 70

2. 1.704 GHz. 

Without fan on heatsink:

Antutu: heatsink temperature 72, the temperature of the back of the PCB - 75

With fan on heatsink:

Antutu: heatsink temperature 50, the temperature of the back of the PCB - 60

3. 1.800 GHz. 

Without fan on heatsink:

Antutu: heatsink temperature 83, the temperature of the back of the PCB - 85

With fan on heatsink:

Antutu: heatsink temperature 52, the temperature of the back of the PCB - 62

4. 1.920 GHz. 

Without fan on heatsink:

Antutu: heatsink temperature 86, the temperature of the back of the PCB - 89

With fan on heatsink:

Antutu: heatsink temperature 53, the temperature of the back of the PCB - 64

5. 2.016 GHz. 

With fan on heatsink only:

Antutu: heatsink temperature 55, the temperature of the back of the PCB - 67