Vref is known so I backed into some formulas based on the 2V nominal value in the datasheet. I put the formulas in sensors.conf.eg in CVS. Also, for the temp, try changing the sensor type, see doc/chips/it87. "Mark D. Studebaker" wrote: > > ITE http://www.ite.com.tw > > See figure 10-4 and the following formulas in the 8705 and 8712 > datasheets. > The 8705 datasheet I have has the wrong formula, the 8712 is right. > You need to know Rin, Rf, and Vref to compute the correct formula. > Unfortunately, since the datasheet doesn't give the board designer a > recommendation, you will have to find and measure the values on > your board. > > I'll put the formulas in sensors.conf.eg so others can find it. > > mds > > Kris Kersey wrote: > > > > Guys, > > > > Could you help me get the math right on several of the IT8705F > > sensors? The readout of my sensors is below. There are definate problems > > with -12V, -5V, and Temp2/CPU. It also seems that the Vcore 1 could be > > slightly off. On my motherboard (SOYO K7V DRAGON Plus!) I also wanted > > note that there was no need to compute in2. Finally, in the headers, > > there is an IN8 define and it doesn't appear that it should be > > there. Help is appreciated but a link to the datasheet would also be nice > > if you don't have the time. > > > > it87-isa-0290 > > Adapter: ISA adapter > > Algorithm: ISA algorithm > > VCore 1: +1.85 V (min = +1.66 V, max = +1.82 V) ALARM > > VCore 2: +2.48 V (min = +2.40 V, max = +2.60 V) > > +3.3V: +3.31 V (min = +3.13 V, max = +3.45 V) > > +5V: +5.02 V (min = +4.72 V, max = +5.24 V) > > +12V: +12.00 V (min = +11.36 V, max = +12.60 V) > > -12V: -7.34 V (min = -11.38 V, max = -12.53 V) ALARM > > -5V: -6.61 V (min = -4.70 V, max = -5.15 V) ALARM > > Stdby: +4.99 V (min = +4.72 V, max = +5.24 V) > > fan1: 0 RPM (min = 0 RPM, div = 2) > > fan2: 5818 RPM (min = 3000 RPM, div = 2) > > Temp1/MB: +40C (min = +20C, max = +40C) > > Temp2/CPU: +114C (min = +25C, max = +45C) > > > > I used the latest sensors.conf.eg from CVS for above. Note the changes > > mentioned. > > > > Thanks, > > Kris Kersey > > LinuxHardware.org Site Manager > > augustus at linuxhardware.org
