Al wrote:
----- Original Message -----
From: "Derek Jennings" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Saturday, August 27, 2005 6:55 AM
Subject: Re: [newbie] CPU Temperature
SNIP
Checking cpu temp in bios is absolutely the worst indicator.
The system is under very little load. lm_sensors while the OS an
software are up an running is the only way to check for extreme
temps under high load. As, for example, with (torture test)
ftp://mersenne.org/gimps/mprime2413.tar.gz
I disagree. The temperature read out of lm_sensors has to be set up for
each
motherboard. The readings from an install of lm_sensors is often wildly
inaccurate. The mobo manufacturer will have set up the BIOS temp readings
to
be accurate (if they have done their job properly) When configuring
lm_sensors the readout should be compared to the BIOS and a temperature
probe
if available.
SNIP
Going back to what I've said above **, software attempts at
cpu cooling are a very bad strategy. When the system is under high
to 100% load they have no effect, as no HLTS are being sent to the
processor. When the system is under light load, HLTS are sent
directly, an the cpu cools rapidly to an artificially low core temp.
This increases the range of the heat/cool cycle that can cause cpu
core trace migration, an can result in permanent damage. Also the
chipset is not being artificially cooled, an motherboard damage is
more likely. This is why, using athcool as an example, the author
issues this disclaimer :
True, both Athcool and speedstepping will cause the CPU temperature to
vary,
but that is better than having the OPs computer shut itself down after 30
mins.
I note also that Athcool's author does not list "Core trace migration" as
a
risk when using athcool.
Before use athcool, you must recognize these potential DANGERS.
Please use athcool AT YOUR OWN RISK.
Athcool does not work on all mobos and versions of Athlon. I have an old
Athlon T-Bird where it makes the system unstable.
Most recent Athlon mobos should work fine. After all athcool is simply
using
the feature AMD put into the Athlon for the purpose of reducing power
consumption. Are you saying AMD do not know about CPUs ?
Where I do agree with you is for the need of the CPU heatsink and case
cooling
to be adequate for the heat produced at full load.
derek
--
www.jennings.homelinux.net
http://twiki.mdklinuxfaq.org
First of all, sorry for the late reply. I've been extremely busy.
Many thanks for all your suggestions. I've tried to cool the case down by
pointing a fan directly into it. This made Mandriva last about 45 mins
instead of 30 mins before telling me the temperature was too high.
Is Mandriva using the CPU a lot more than Windows? As I said in my original
post, Windows doesnt seem to go over 56 degrees and it's been running 24/7
for weeks at a time. Mandriva runs for between 30 and 45 mins and the
temperature skyrockets.
I'm too poor to upgrade my system at the moment. Guess I'm gonna be stuck
with Windows for a while :(:(:(
I really want to start learning Mandriva Linux.
I've tried Fedora Core 4. But I didn't like it all that much. Mandriva seems
to be the best I can find.
Many thanks for your help.
Al
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My GUESS is that you have a hardware problem, caused by some unknown event.
All you may have to do is install an additional muffin fan, but I'm no
expert.
____________________________________________________
Want to buy your Pack or Services from Mandriva?
Go to http://store.mandriva.com
Join the Club : http://www.mandrivaclub.com
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