Bonjour,

I have a problem of over-heating, this is my interpretation of this message:

CPU0: Temperature above threshold, cpu clock throttled
CPU1: Temperature above threshold, cpu clock throttled

Bonjour,

I have a problem of over-heating, this is my interpretation of this message:

CPU0: Temperature above threshold, cpu clock throttled
CPU1: Temperature above threshold, cpu clock throttled

My motherboard is an ASUS P5WD2 premium with a pentium D.

I'm running Fedora FC4.

This occurs when slocate run to update its database, with some
xscreensavers, when I compile a (not so) long latex file....

I don't think that this is a normal behaviour. Some told me to flash the
bios to a new version....

Who can give a good advice on how to solve the problem?

Assuming it isn't a weird bug in one of the running programs, then:

On Sun, 07 May 2006 11:06:29 +0200, François Patte <francois.patte@math-info.univ-paris5.fr> wrote:


Bonjour,

I have a problem of over-heating, this is my interpretation of this message:

CPU0: Temperature above threshold, cpu clock throttled
CPU1: Temperature above threshold, cpu clock throttled


On the bright side, it didn't burn out CPU.

Check CPU heatsink for dust blocking airflow, also case ventilation.

Sorry that should be >70 deg. C

How to really check this? I use gkrellms which gives me 4 temp, but,
except for one I don't know which is which! I guess:

Temp1 is case temp ~40°C
Temp2 is CPU0 temp ~70°C
Temp3 is CPU1 temp ~120°C !!!!!
Temp4 (the only one I know) is graphic card ~50°C

BIOS refers to one CPU temp only(?)! Quite similar to Temp2.

There are some things that I don't understand:

cat /proc/acpi/processor/CPU1/info:

processor id: 0
acpi id: 1
bus mastering control: yes
power management: no
throttling control: yes
limit interface: yes

cat /proc/acpi/processor/CPU2/info:

processor id: 1
acpi id: 2
bus mastering control: yes
power management: no
throttling control: no
limit interface: no

Why these differences?

Reading the mobo manual I can read that there should be a
"Hyper-Threading Technology" entry

There is no such entry! Why. My processor is an Intel Pentium D 830
which use this HT tech.

I am tring to flash my BIOS but I don'y know (yet) how to do: every
description of the process refers to floppy and DOS boot floppy: I
don't have either floppy drive or DOS boot disc....

How to really check this? I use gkrellms which gives me 4 temp, but,
except for one I don't know which is which! I guess:

I am tring to flash my BIOS but I don'y know (yet) how to do: every
description of the process refers to floppy and DOS boot floppy: I don't
have either floppy drive or DOS boot disc....

François Patte wrote:

[cpu being throttled]


Sorry that should be >70 deg. C

How to really check this? I use gkrellms which gives me 4 temp, but,
except for one I don't know which is which! I guess:

Temp1 is case temp ~40°C
Temp2 is CPU0 temp ~70°C
Temp3 is CPU1 temp ~120°C !!!!!
Temp4 (the only one I know) is graphic card ~50°C

BIOS refers to one CPU temp only(?)! Quite similar to Temp2.


I don't use gkrellms, but I'd guess that temp3 is spurious. Check the
settings in gkrellms or lm_sensors see what temp3 refers to.

There are some things that I don't understand:

cat /proc/acpi/processor/CPU1/info:

processor id: 0
acpi id: 1
bus mastering control: yes
power management: no
throttling control: yes
limit interface: yes

cat /proc/acpi/processor/CPU2/info:

processor id: 1
acpi id: 2
bus mastering control: yes
power management: no
throttling control: no
limit interface: no

Why these differences?


If you've only got two cpus then you should only have CPU0 and CPU1.

BTW what do the 'throttling' and 'limit' files have in them
under /proc/acpi/processor/CPUx/

I am tring to flash my BIOS but I don'y know (yet) how to do: every
description of the process refers to floppy and DOS boot floppy: I
don't have either floppy drive or DOS boot disc....



You can do this with a 'free' version of DOS - freeDOS. A google search
will find one for you...

I don't use gkrellms, but I'd guess that temp3 is spurious. Check the
settings in gkrellms or lm_sensors see what temp3 refers to.

I can't see that: gkrellms refers to Temp 1 2 3 and GPU Nvidia

sensors command gives:

Sys Temp: +40°C (high = +45°C, hyst = +40°C)
CPU Temp: +53.5°C (high = +45.0°C, hyst = +40.0°C)

temp3: +125.0°C (high = +80.0°C, hyst = +75.0°C)
What is temp3? (ie How can I know?...)

If you've only got two cpus then you should only have CPU0 and CPU1.

That's the case the file is named CPU1/2 but CPU id=0/1

BTW what do the 'throttling' and 'limit' files have in them
under /proc/acpi/processor/CPUx/

Throttling for CPU1
state count: 8
active state: T0
states:
*T0: 00%
T1: 12%
T2: 25%
T3: 37%
T4: 50%
T5: 62%
T6: 75%
T7: 87%

throttling for CPU2:

not supported

Why?

sensors command gives:

Sys Temp: +40°C (high = +45°C, hyst = +40°C)
CPU Temp: +53.5°C (high = +45.0°C, hyst = +40.0°C)
temp3: +125.0°C (high = +80.0°C, hyst = +75.0°C)

What is temp3? (ie How can I know?...)

Reboot the machine, go into the BIOS and see what's on the

CPU0: Temperature above threshold, cpu clock throttled
CPU1: Temperature above threshold, cpu clock throttled

On the bright side, it didn't burn out CPU.

Check CPU heatsink for dust blocking airflow, also case ventilation.

Just a few months ago I stormed back to the shop where I bought my
machine showing the bios with a CPU temperature of > 90 degrees C!

Exactly as you've described here, the guy in the back came out with a
small 1/4 inch paint brush and gently brushed away 6 months of dust from
the top of the heat sink.

The machine started and the CPU stayed at ~70 or so.

At the time I remember feeling a little embarrassed that this was the
problem, but now that I think about it, I don't think your average Jane
Doe should have to do this kind of thing. As computer savvy as I
*thought* I was, I don't think that it should be necessary to open your
machine up every 6 months to spring clean it. Is that naive of me?

As you've a dual-core cpu it seems very unlikely that you'd a different
sensor for each core so the cpu/temp2 temperature will be the one for
both cpus.

François Patte wrote:

sensors command gives:

Sys Temp: +40°C (high = +45°C, hyst = +40°C)
CPU Temp: +53.5°C (high = +45.0°C, hyst = +40.0°C)
temp3: +125.0°C (high = +80.0°C, hyst = +75.0°C)

What is temp3? (ie How can I know?...)


Reboot the machine, go into the BIOS and see what's on the
healthcheck/status page. That might give a clue as to what's what. If
you can do it quick enough from the above condition you might even be
able to tell which one is excessively high.

On Mon, 08 May 2006 16:56:47 +0100, Chris <ithinkiam@gmail.com> wrote:

As you've a dual-core cpu it seems very unlikely that you'd a
different sensor for each core so the cpu/temp2 temperature will be
the one for both cpus.

HT != Dual core

On Mon, 08 May 2006, in the Usenet newsgroup comp.os.linux.hardware, in article
4c8ek2F14t1hnU1@individual.net>, Richard Corden wrote:

Just a few months ago I stormed back to the shop where I bought my
machine showing the bios with a CPU temperature of > 90 degrees C!


One would _HOPE_ that is an error. Many CPUs at that temperature are in
thermal runaway and are destroying themselves.

The machine started and the CPU stayed at ~70 or so.


That's still way to hot.

At the time I remember feeling a little embarrassed that this was the
problem, but now that I think about it, I don't think your average Jane
Doe should have to do this kind of thing. As computer savvy as I
*thought* I was, I don't think that it should be necessary to open your
machine up every 6 months to spring clean it. Is that naive of me?


What is the local environment like? Pets? Windows and doors open and
lots of dust blowing through the house?

Smoker?

How often is the place
vacuumed, and what kind of vacuum cleaner is used?

In summer,
the interior temperatures can hit 30C/86F despite 7 Tons of central
air conditioning, so the systems have additional fans and dust filters.

The filters are on added fans blowing in to the case, and get cleaned
perhaps monthly.

Dave {Reply Address in.Sig} a écrit :
François Patte wrote:

sensors command gives:

Sys Temp: +40°C (high = +45°C, hyst = +40°C)
CPU Temp: +53.5°C (high = +45.0°C, hyst = +40.0°C)
temp3: +125.0°C (high = +80.0°C, hyst = +75.0°C)

What is temp3? (ie How can I know?...)

Reboot the machine, go into the BIOS and see what's on the
healthcheck/status page. That might give a clue as to what's what. If
you can do it quick enough from the above condition you might even be
able to tell which one is excessively high.

In BIOS I can only find 2 temp: Sys temp and CPU temp....

That might mean that the third one is bogus if the BIOS thinks it