Hello Jean! On Wed, 29 May 2013 17:05:47 +0200 Jean Delvare <khali@xxxxxxxxxxxx> wrote: > > > [...] > > > > # Processor Vcc > > > > label in0 "Vcore" > > > > set in0_min 0.40 > > > > set in0_max 1.60 > > > > Vcore is special. I noticed that it changes with SpeedStep (for > > example on D2800). However D2500 does not have SpeedStep. It is > > constantly on 1.19V. In case of D2800 for example it varies > > between 0.85V and 1.07V depending on the load. > > What would you recommend for min/max? > > As it depends on the CPU it is hard to say. The user will have to > adjust them anyway so I'll leave the values above. I have read the relevant parts from the Intel Atom Datasheet and I believe now I figured out what should be the limits. Table 4-30 from the "Intel Atom Processor D2000 and N2000 Series Datasheet, Vol. 1" contains two voltage specifications <http://www-ssl.intel.com/content/dam/doc/datasheet/atom-d2000-n2000-vol-1-datasheet.pdf>: VCC_HFM: - Vcc at Highest Frequency Mode (HFM) - Range 0.91V - 1.21V, depending on the calibrated individual voltage identification value (VID) VCC_LFM: only for CPUs with SpeedStep feature - Vcc at Lowest Frequency Mode (LFM) - Range 0.70/0.75 - 0.90V, depending on VID The Intel D2500CC mini-ITX board has an Intel Atom D2500 soldered on it which lacks the SpeedStep technology, so one can say that the proper Vcore limits for this specific mainboard are: label in0 "Vcore" set in0_min 0.91 set in0_max 1.21 Can you fix this on the Wiki page? Thank you for your support. Regards, Balint _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
