Temperature/fan monitoring on a Supermicro P8SCT

[Jeremy Chadwick]

On Tue, Jan 09, 2007 at 02:50:47PM +0100, Bruno Ducrot wrote:
> On Tue, Jan 09, 2007 at 12:39:45PM +1030, Daniel O'Connor wrote:
> > Has anyone had any success?
> > I've tried healthd (0.7.9) but it can't show temps, eg..
> > julx2:/usr/src/sys/amd64/conf>sudo healthd -1 -D
> 
> It seems we can get directly different temperatures from the CPU.  At
> least this works for some opteron CG core, and believe it should work
> with other processors as well.
> 
> In the meantime, could you please try this:
> 
> # setpci -d1022:1103 e6.b | sed s,^,0x,g | \
> 	awk 'BEGIN {i = 0} {print "processor "i++": " $1 - 49 "C"}'
> 
> (you must have the sysutils/pciutils port, though, but I need a similar
> command under Linux, that's why I'm doing something like that).

I don't understand how this interfaces with the Winbond 83627HF H/W
monitoring IC of the P8SCT.  As far as I know, the 83627HF does not
sit on the PCI bus; you can only talk to it via SMBus (and that's
*only* if Supermicro added the SMBus tie-ins in their BIOS properly;
Supermicro has a history of being hit-or-miss when it comes to this,
most of the time being a miss), or via ancient x86 memory-mapped I/O
ports (which each motherboard vendor can set/implement at various
memory locations as they see fit; there is no "standard").

Full engineering details of the 83627HF are here:

http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/627hf.pdf

Regarding your setpci request:

0x1022 is the vendor ID (AMD), 0x1103 is the device ID (what AMD
labels as "Miscellaneous Control").  How did you determine that
you should use configuration register E6?  I can't find any
documentation about this PCI device.

Regardless, chances are what you're looking up on the PCI bus
is the on-die thermistor for CPU temperature.  This doesn't
help when it comes to monitoring system (case/enclosure)
temperature.

-- 
| Jeremy Chadwick                                 jdc at parodius.com |
| Parodius Networking                        http://www.parodius.com/ |
| UNIX Systems Administrator                   Mountain View, CA, USA |
| Making life hard for others since 1977.               PGP: 4BD6C0CB |