Re: amd athlon cooling on kt266/266a chipset

Re: amd athlon cooling on kt266/266a chipset

[Dieter Nützel]

On Thursday, 24. January 2002 12:36, Norbert Preining wrote:
> On Don, 24 Jan 2002, Ed Sweetman wrote:
> > Furthermore, I haven't heard of anyone where the patch actually makes an
> > improvement in temp with the patch.  But i have heard of people saying
>
> Well, I am a counterexample. I used another patch doing the same
> (the one from www.vcool.de) and it reduced my CPU temp by around 15-20 C!
> In summer this can be of real good use!

I can second that.
You know that this thread was running for some time ([patch] amd athlon 
cooling on kt266/266a chipset).

Find below the best numbers I've ever seen (I resend them, here):

Athlon TB 1.2 GHz on MSI MS-6380 (KT7-Turbo-R):

idle mode with full VCool stuff under Win98SE
(you could watch the temperature drop in 5 sec (?) steps...;-)

~64°C => 29°-30°C

Case was somewhat below after that.

Regards,
	Dieter

-- 
Dieter Nützel
Graduate Student, Computer Science

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

Re: amd athlon cooling on kt266/266a chipset

[Norbert Preining]

Hi Daniel!

You wrote:
> 2. enable generel-setup -> acpi , acpi-bus-maager , prozessor
>    in the kernel config

Why is it necessary to activate acpi which makes apm not working,
and therefor poweroff etc. acpi is long from working/stable and
the support for various actions too are missing.

>From the patch I do not see why it is specific to acpi?

Best wishes

Norbert

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Norbert Preining <preining@logic.at> 
University of Technology Vienna, Austria            gpg DSA: 0x09C5B094
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Re: amd athlon cooling on kt266/266a chipset

[Daniel Nofftz]

On Thu, 24 Jan 2002, Norbert Preining wrote:

> Hi Daniel!
>
> You wrote:
> > 2. enable generel-setup -> acpi , acpi-bus-maager , prozessor
> >    in the kernel config
>
> Why is it necessary to activate acpi which makes apm not working,
> and therefor poweroff etc. acpi is long from working/stable and
> the support for various actions too are missing.
>
> >From the patch I do not see why it is specific to acpi?
>
> Best wishes

hi norbert!

ok ... i  tested it:
patch activted:
apm activated -> prozessor idle calls : 42°C when idle
acpi activated -> prozessor c1/c2 states: 35°C when idle

under load:
apm activated -> 47°C kernel compiling after 2 min
acpi activated -> 43°C kernel compiling after 2 min

(kernel compiling only lasts about 3 min ... so no larger load intervalls
are avaible at the moment ... )

so ... you could use apm ... but acpi proofs to be better in power saveing
with the "disconnectenable when STPGNT detected" bit set ...
maybe apm is not working at all .. .cause at the moment i see that the
temperature does not drop at all after finishing the kernel ... it looks
like that the 42°C only where cause it was fresh rebooted from the acpi
power saving mode

daniel

# Daniel Nofftz
# Sysadmin CIP-Pool Informatik
# University of Trier(Germany), Room V 103
# Mail: daniel@nofftz.de

Re: amd athlon cooling on kt266/266a chipset

[Ed Sweetman]

On Thu, 2002-01-24 at 06:19, Daniel Nofftz wrote:
> On Thu, 24 Jan 2002, Norbert Preining wrote:
> 
> > Hi Daniel!
> >
> > You wrote:
> > > 2. enable generel-setup -> acpi , acpi-bus-maager , prozessor
> > >    in the kernel config
> >
> > Why is it necessary to activate acpi which makes apm not working,
> > and therefor poweroff etc. acpi is long from working/stable and
> > the support for various actions too are missing.
> >
> > >From the patch I do not see why it is specific to acpi?
> >
> > Best wishes
> 
> hi norbert!
> 
> ok ... i  tested it:
> patch activted:
> apm activated -> prozessor idle calls : 42°C when idle
> acpi activated -> prozessor c1/c2 states: 35°C when idle
> 
> under load:
> apm activated -> 47°C kernel compiling after 2 min
> acpi activated -> 43°C kernel compiling after 2 min
> 
> (kernel compiling only lasts about 3 min ... so no larger load intervalls
> are avaible at the moment ... )
> 
> so ... you could use apm ... but acpi proofs to be better in power saveing
> with the "disconnectenable when STPGNT detected" bit set ...
> maybe apm is not working at all .. .cause at the moment i see that the
> temperature does not drop at all after finishing the kernel ... it looks
> like that the 42°C only where cause it was fresh rebooted from the acpi
> power saving mode

You should check your /var/log/messages directly for this nifty little
message. 
kernel: ACPI: APM is already active, exiting

If you compiled in apm at the time you did that test,  acpi wasn't even
active and thus the special athlon disconnect patch wasn't even
working.   So all of that better cooling would be psychoschomatic.  
Wouldn't be the first time better cooling/performance was all in the
head of the person using the hardware...although if you didn't have apm
compiled in then none of this matters and it was all working. But i
doubt that is true due to the 42C idle after some use no matter which
kernel was being used.  


Furthermore, I haven't heard of anyone where the patch actually makes an
improvement in temp with the patch.  But i have heard of people saying
it affected performance detrimentally. If it is helping and the cpu fans
decrease due to the lower temp, add fan speeds in different loads/temps
to reflect this.  
lowering the fan speed and thus noise is more than a welcome change.    

Re: amd athlon cooling on kt266/266a chipset

[Norbert Preining]

On Don, 24 Jan 2002, Ed Sweetman wrote:
> Furthermore, I haven't heard of anyone where the patch actually makes an
> improvement in temp with the patch.  But i have heard of people saying

Well, I am a counterexample. I used another patch doing the same
(the one from www.vcool.de) and it reduced my CPU temp by around 15-20 C!
In summer this can be of real good use!

Best wishes

Norbert

-----------------------------------------------------------------------
Norbert Preining <preining@logic.at> 
University of Technology Vienna, Austria            gpg DSA: 0x09C5B094
-----------------------------------------------------------------------
`The best way to get a drink out of a Vogon is to stick 
your finger down his throat...'

                 --- The Book, on one of the Vogon's social inadequacies. 
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Re: amd athlon cooling on kt266/266a chipset

[Daniel Nofftz]

On 24 Jan 2002, Ed Sweetman wrote:

> You should check your /var/log/messages directly for this nifty little
> message.
> kernel: ACPI: APM is already active, exiting
>
> If you compiled in apm at the time you did that test,  acpi wasn't even
> active and thus the special athlon disconnect patch wasn't even
> working.   So all of that better cooling would be psychoschomatic.
> Wouldn't be the first time better cooling/performance was all in the
> head of the person using the hardware...although if you didn't have apm
> compiled in then none of this matters and it was all working. But i
> doubt that is true due to the 42C idle after some use no matter which
> kernel was being used.

for the test i build a new kernel without any acpi function but with apm
ompiled in ... if you mean this ... the results where those i posted ...

> Furthermore, I haven't heard of anyone where the patch actually makes an
> improvement in temp with the patch.  But i have heard of people saying
> it affected performance detrimentally. If it is helping and the cpu fans
> decrease due to the lower temp, add fan speeds in different loads/temps
> to reflect this.
> lowering the fan speed and thus noise is more than a welcome change.

my cpu is cooled down and my cpu fan + 2 temperature controlled case fans
are slowed down -> lesser noise ...

daniel


# Daniel Nofftz
# Sysadmin CIP-Pool Informatik
# University of Trier(Germany), Room V 103
# Mail: daniel@nofftz.de