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From: Dieter =?iso-8859-15?q?N=FCtzel?= <Dieter.Nuetzel@hamburg.de>
Organization: DN
To: timothy.covell@ashavan.org
Subject: Re: [patch] amd athlon cooling on kt266/266a chipset
Date: Thu, 24 Jan 2002 00:20:28 +0100
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Cc: Daniel Nofftz <nofftz@castor.uni-trier.de>,
        Vojtech Pavlik <vojtech@suse.cz>,
        Linux Kernel List <linux-kernel@vger.kernel.org>
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On Thursday, 24. January 2002 23:50, you wrote:
> On Wednesday 23 January 2002 14:18, you wrote:
> > On Thursday, 24. January 2002 06:14, Timothy Covell wrote:
> > > I'm confused by all of the posts and websites that
> > > I've read.   In particular, some of the wattage and
> > > temperature claims seem outrageous.   So, here's
> > > what I've been able to discover
> > >
> > > 1. According to AMD specs, the model 3 Duron's don't
> > > use more that 40 Watts maximum.
> > >
> > > 2. With my Duron 800 on a KT133A chipset
> > > running folding@home and seti@home
> > > continuously, LM sensors reports:
> > >
> > > SYS Temp: +45.2?C
> >
> > What should this number mean?
> > Shouldn't this be the CPU temperature?
>
> This corresponds to what my BIOS says is the CPU temp.
>
> > > CPU Temp: +35.1?C
> >
> > Mobo?
>
> This corresponds to what my BIOS says is the system temp.
>
> > > SBr Temp: +25.8?C
> >
> > Case?
>
> That's my guess as well.

OK, I see.

The BIOS numbers are all mostly wrong. When you are in the BIOS config (the 
Del or ESC key thing)...;-)  The CPU is running without any IDLE cycles at 
all.

> > I think this is much to high. Read my other post.
>
> Too high for a duron 800 running seti@home type loads nonstop?

Yes, sorry. I overlooked that.

> I think that this is the expected temperature.

What I expect is:

+45?C CPU
The sensor under the CPU 'cause only the Morgan and Athlon XP/MP have the new 
integrated sensor but only "latest" mobos support it. Not your KT133A based 
one.

+35?C mobo (but I haven't anyone with sensor seen so far)
Could be the CPU -10?C what's sometimes the case with some mobo manufactures.

+25?C System (the case temperature)
With your system load.

An idle system should look like this:

CPU		23-25?C	(with IDLE and BUS GRANT)
system (case)	20-23?C	(room temperature)

At any time (full load) the case temperature shouldn't go over 40?C with all 
stuff running (gfx, disks, lan, etc.). Recommendations from AMD and Intel. 

> I've come to the conclusion that the lm_sensors stuff is crap,

No, they have the frame work in place but need the usefull bits.
That's we are hunting for...

> but not totally because of the authors.  It looks like the manufacturers
> like VIA are not very helpful to the project.....

Very true!

Regards,
	Dieter
-- 
Dieter N?tzel
Graduate Student, Computer Science

University of Hamburg
Department of Computer Science
@home: Dieter.Nuetzel@hamburg.de
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