![]() The DTS gives an instantaneous value at a resolution of 1 degree and may be subjective to noise. "The Differences Between Reading the PECI Bus and Reading the DTS Through An MSRĮach DTS needs to be read individually but they can be read without extra PECI hard ware. PECI is most accurate near the maximum temperature (PROCHOT#) and it is accurate enough for fan speed control in the TCONTROL range but it can be very inaccurate at low temperatures." "How to Convert PECI/DTS Values to An Absolute Temperature * My note: what Intel calls "Tj" is the same as "Tjunction" for CoreTemp and "TJMax" for RealTemp Not knowing the intention and effective range of DTS, the tools try to compensate with the inaccuracy of low temperature reading, which may not be a correct interpretation." Secondly the DTS is only accurate when in the adjacency of Tj. First the assumed value for Tj maynot be correct and thus impact the accuracy of actual temperature reporting. There are several issues with these tools. The DTS value is referred to as a DTS Count since one count does not necessarily equal one degree." As a result, given the same TCONTROL setting, not all processors will be at the same silicon temperature when at TCONTROL. The characteristics of the Digital Thermal Sensor (DTS) vary from die to die and each processor DTS is factory calibrated. The important thing to note is that PECI is accurate enough for fan speed control and Thermal Control Circuit (TCC) activation warning. It is important to understand the limits of each generation when using the DTS or PECI. The DTS accuracy and range varies from generation to generation. The IA32_THERM_STATUS MSR is associated with a processor core and is not shared between the two cores on the package (it is shared between logical processors on a HT technology processor)." When either core‟s thermal sensor trips. Temperature sensors located throughout the die are implemented as analog-to-digital converters calibrated at the factory" Software only has access to the core temperature registers" ![]() There are multiple DTS sensors per processor die. (There seem to exist even more sensors not accessible by Software)įrom the PDF (cpu-monitoring-dts-peci-paper.pdf - September 2010):īoth processor families support TM1 (Thermal Monitor 1), TM2 (Thermal Monitor 2), per-core DTS. No, for Intel CPUs there are individual sensors in each core You can help by adding a new language or improving the existing translation.Are the DTS a software-only sensors sharing input from a SINGLE PHYSICAL sensor WITHOUT MULTIPLE DEDICATED PHYSICAL sensors to feed them exclusively, you think? Greek (thanks to sudoxcess and vaionicle).Danish (thanks to casperes1996 and aleksanderbl29). ![]()
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