Re: lm(4) temperature

Am Sat, Nov 27, 2021 at 03:35:05PM +0100 schrieb Jan Stary:
> > > This is current/i386 on an ALIX.1E (dmesg below).
> > > I am trying to monitor the CPU temperature with
> > >
> > > wbsio0 at isa0 port 0x2e/2: W83627HF rev 0x41
> > > lm1 at wbsio0 port 0x290/8: W83627HF
> > >
> > > $ sysctl hw.sensors.lm1
> > > hw.sensors.lm1.temp0=69.00 degC
> > > hw.sensors.lm1.temp1=57.00 degC
> > > hw.sensors.lm1.temp2=49.00 degC
> > > hw.sensors.lm1.volt0=1.26 VDC (VCore A)
> > > hw.sensors.lm1.volt1=2.64 VDC (VCore B)
> > > hw.sensors.lm1.volt2=3.42 VDC (+3.3V)
> > > hw.sensors.lm1.volt3=5.11 VDC (+5V)
> > > hw.sensors.lm1.volt4=0.00 VDC (+12V)
> > > hw.sensors.lm1.volt5=-14.91 VDC (-12V)
> > > hw.sensors.lm1.volt6=-7.71 VDC (-5V)
> > > hw.sensors.lm1.volt7=5.07 VDC (5VSB)
> > > hw.sensors.lm1.volt8=0.00 VDC (VBAT)
> > >
> > > There are three temperatures reported,
> > > and dev/ic/lm78var.h talks about Temperature 1, 2, 3;
> > > but man lm(4) only says
> > >
> > > Temp uK Motherboard Temperature
> > >
> > > Does anyone know what exactly they are?
> >
> >
> > There is a chip in the machine.
> > It has pins.
> > Those pins are monitored by the driver, as specific registers.
> >
> > The pins wired to who the hell knows where by each board manufacturer.
> >
> > Sometimes the chips need special registers and capacitors
> >
> > Quite often, the board engineer sent to add this part to the board
> > choose the wrong registers and capacitors, and sometimes they compensate
> > for these errors with private tables in the BIOS or various monitoring
> > programs which move around machine to machine.
> >
> >
> > We monitor registers. We assume the vendor did the right thing.
> >
> > No that I've described what a shitshow it is, I hope you can adjust your
> > expectations.
>
> OK, with expectations adjusted,
> does anyone know what the three numbers
> are _supposed_ to be?
>

Yes. Temperature readings from multiple places on the motherboard.