AMD introduces a thermal control system, which adds 20ºC to the AMD Ryzen 7 1800X and AMD Ryzen 7 1700X processors, to avoid damaging the processor.

The new AMD Ryzen processors have as many highlights as they are shadows. If yesterday we echoed AMD's note regarding its new processors, clarifying that there are no problems under Windows 10, as reported, specific information about the processor's internal temperature sensors appears in the same note. This internal sensor has been called by AMD as 'T Control' or 'tCTL' and is responsible for regulating the power and the work of the cooler.

This internal 'tCTL' sensor derives the temperature from the junction interface point or Tj between the matrix and the heat sink or cooler, which can be compensated for in hundreds of processors. All processors based on socket AM4 have a maximum value of 'tCTL'. This ensures that all AMD Ryzen processors make consistent use of the fan, or in other words, vary the power of the fan according to specific needs.

Specifically, the AMD Ryzen 7 1700X and 1800X processors have a compensation of + 20ºC through the 'tCTL' and the actual temperature Tj. Simply put, AMD explains that the junction temperature between the processor and the heatsink is 20ºC higher than indicated, by way of compensation and avoiding problems in the processor. This is done to avoid damaging the processor. This calculation is not necessary for the Ryzen 7 1700. The monitoring software, according to AMD, is expected to better understand the 'tCTL' offsets to better report temperature.

AMD has wanted to keep this 'little' ace up its sleeve, to avoid damaging the processors, but among other reasons, there is the XFR, which is frequency and voltage peaks. What this system allows is to make an upward adjustment, to prevent the XFR from entering when the temperature is high, damaging the processor and ensuring good temperature dissipation.

Source: AMD