[parisc-linux] 712 Software Temperature

[parisc-linux] 712 Software Temperature

[Jbit]

Hi,
looking inside my 712, I noticed that it has a thermocouple or somthing to dectect the temperature in the case.
Tracing back the wires finds that they connect to the mainboard, and on the same connector, theres 2 wires that goto the power supply.
I'd assume this is for a secondry fan?
Anyway, since it goes to the mainboard, does this mean its posible to find out the temperature in software?
Since, if it was purley for fan control, it would be done in hardware, wouldn't it?

Thanks
--Jbit


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Re: [parisc-linux] 712 Software Temperature

[Ralf Hildebrandt]

On Thu, Feb 21, 2002 at 11:51:46AM +0000, Jbit wrote:
> Hi,
> looking inside my 712, I noticed that it has a thermocouple or somthing to 
> dectect the temperature in the case.
> Tracing back the wires finds that they connect to the mainboard, and on the 
> same connector, theres 2 wires that goto the power supply.
> I'd assume this is for a secondry fan?

According to the manual, the fan shifts ito higher gear, once the
temperature exceeds 30 deg. celsius.

> Anyway, since it goes to the mainboard, does this mean its posible to find 
> out the temperature in software?

THAT would be interesting.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Murphy's Law is recursive.  
Washing your car to make it rain doesn't work. 

Re: [parisc-linux] 712 Software Temperature

[Grant Grundler]

Jbit wrote:
...
> Since, if it was purley for fan control, it would be done in hardware,
> wouldn't it?

Caveat: I'm a SW engineer and this is from memory.

The fan speed is *generally* controlled by HW with PDC just setting
the "ramp" in HW registers. Some servers might "expose" the
temperature reading. I doubt the 712 does.

grant