[opensuse] Temperature measurements of computer components
My computer is working in a relative warm environment. In this room the temperature is an average of 26' C. Since years I keep an eye on the temperatures of the CPU, Motherboard and the rpm of the important coolers. Having had to go several times today into my bios I discovered there that according to the bios the temperatures of the CPU where over 90' C and during the booting process the start-up speed was reduced. On my gkrellm which is running on every desktop I have after the booting process a temp from 60' to 65' C. Assuming that the temperatures may come from the same sensor I wonder which of the two I should trust. Looked into other temperature programs in Yast I found Eeze but found out that I do not even understand their documents. Any other KDE program which I could have a look into? -- Linux User 183145 using KDE4 and LXDE on a Pentium IV , powered by openSUSE 13.1 (i586) Kernel: 3.13.2-14.gb59b809-default KDE Development Platform: 4.12.2 13:07pm up 1:58, 4 users, load average: 1.39, 2.01, 3.54 -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 16/02/14 17:39, C. Brouerius van Nidek wrote:
My computer is working in a relative warm environment. In this room the temperature is an average of 26' C. Since years I keep an eye on the temperatures of the CPU, Motherboard and the rpm of the important coolers.
Having had to go several times today into my bios I discovered there that according to the bios the temperatures of the CPU where over 90' C and during the booting process the start-up speed was reduced.
On my gkrellm which is running on every desktop I have after the booting process a temp from 60' to 65' C.
Assuming that the temperatures may come from the same sensor I wonder which of the two I should trust. Looked into other temperature programs in Yast I found Eeze but found out that I do not even understand their documents. Any other KDE program which I could have a look into? To begin with, unless you are using a refrigerator-type cpu cooler the temperature of your cpu cannot be less than the ambient temperature (in your room, which is, as you claim, 26C).
This of course is for when the cpu has been running for a short time - but the temperature at boot-time should be close to 26C (in your case). In your BIOS you should be able to set alarms which will go off when temperatures for the cpu, etc. reach a certain level. The "critical" temperature for your cpu is determined by the manufacturer's specifications of your cpu. What is that? Do you know? The temperature of the cpu goes up when it is performing tasks for a 'longish' time. For example, I do some cpu-intensive operations on my AMD cpu and when I did I found that the alarm (which I set in the BIOS) would go off. I raised the alarm level from (?) to be just below the max set by the manufacturer and the alarm stopped going off. The question here is: do you know what the specs are for your cpu(s) and are the alarms set correctly in your BIOSes? Now, I have 10 fans cooling the components in my computer box. How many do you have? And are all your fans and their inlets/outlets - as well as the interior/mobo - CLEAN? You can have all the temperature measurements you like in place but if the fans etc which get rid of the heat/transfer heat are covered in gunk and cannot do their job then..... you know the answer. At least once in 3-6 months I pull the whole sheebang apart and clear/clear all the fans and inlets/outlets. BC -- A civilisation is judged by how it treats the most vulnerable. Lauren Smith - 30 January 2014 -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
Le 16/02/2014 08:11, Basil Chupin a écrit :
The temperature of the cpu goes up when it is performing tasks for a 'longish' time.
heating of the cpu can be as well extremely fast (some seconds) or pretty long, including several minutes of inactivity, mostly because cooling problems. usually cpu's have protecting systems that switch them off in such situation, I never broke recent (less than 6 years) cpu this way. The most common problem if fan stopping or going too slow. Historically, I heard of problems with not enouth cooling grease between the radiator and the cpu but didn't suffer such thing myself. the fan problem is very often due to the fact that the fan axes lack lubrication. Unmounting the fan, adding very little oil and it start again. but I had also a computer (on my table near me right now) where the hardware system controll of the fan was faulty (laptop). I simply soldered the fan to the near usb jack alimentation. Now it always run and do noise, but the computer do no more switch off by itself. that said I often have got computers much too crowded of fans that could be unplugged without problem to save noise (26°C is *not* hot, I have every summer more than 35°C at home). I also have got one computer with faulty bios alarm that prevented it from booting without bipping and had to be unactivated. if your computer is not filled with dust (cleaning is always a very good idea), and you hear the fan running, a temp of 90°C right in the bios is very unlikely use "sensors" to test: linux-zckr:/home/jdd # sensors nouveau-pci-0100 Adapter: PCI adapter fan1: 6300 RPM temp1: +57.0°C (high = +95.0°C, hyst = +3.0°C) (crit = +105.0°C, hyst = +5.0°C) (emerg = +135.0°C, hyst = +5.0°C) coretemp-isa-0000 Adapter: ISA adapter Core 0: +36.0°C (high = +89.0°C, crit = +105.0°C) Core 2: +39.0°C (high = +89.0°C, crit = +105.0°C) jdd -- http://www.dodin.org -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 16/02/14 07:11, Basil Chupin wrote:
To begin with, unless you are using a refrigerator-type cpu cooler the temperature of your cpu cannot be less than the ambient temperature
This is not true - moving air from a fan carries heat away more effectively than static air, so the processor can be several degrees below the ambient temperature, provided the fan and heatsink are reasonably clean. This is exactly why people use room fans in hot weather and we are given a "wind chill" factor in winter weather reports. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
Le 16/02/2014 10:26, Dylan a écrit :
On 16/02/14 07:11, Basil Chupin wrote:
To begin with, unless you are using a refrigerator-type cpu cooler the temperature of your cpu cannot be less than the ambient temperature
This is not true - moving air from a fan carries heat away more effectively than static air, so the processor can be several degrees below the ambient temperature, provided the fan and heatsink are reasonably clean. This is exactly why people use room fans in hot weather and we are given a "wind chill" factor in winter weather reports.
wrong people have perspiration to cool them, cpu have not, that's why frigs are usefull jdd -- http://www.dodin.org -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 16/02/14 10:30, jdd wrote:
people have perspiration to cool them, cpu have not, that's why frigs are usefull
jdd
Yes, a surprising number of people resort to frigs when they're feeling hot. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On 2014-02-16 10:26, Dylan wrote: No, this is absolutely wrong. Fans work with people because we perspire, we evaporate water to cool ourselves. With moving air, that evaporation is faster and we cool more. As for the wind chill, see the wikipedia definition (just one easy to find definition): «Wind-chill or windchill, (popularly wind chill factor) is the perceived decrease in air temperature felt by the body on exposed skin due to the flow of air.» So, if outside temp is 10C and windchill is -10C, and you mesure the temperatures of any objects outside, they will be at 10, not -10. Water will not freeze. - -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" (Minas Tirith)) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iF4EAREIAAYFAlMAsl0ACgkQja8UbcUWM1zEXgD+K97ERDchUtC0/0bsIa/S+9Aa GA0XOSue7hU9iWNvdPgBAITqQoORubxL2FkcE2KE66kRqm0dhxBIoWLR0ST4+w27 =ts+B -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Huh, sorry, unintentional double post. Thunderbird bug, apparently. Sometimes Th does not use the default smtp server (postfix) and sends on its own. It thinks post failed, and sends again. It also thinks that it could not save copy in sent folder, and keeps trying, till aborted. - -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" (Minas Tirith)) On 2014-02-16 13:43, Carlos E. R. wrote:
On 2014-02-16 10:26, Dylan wrote:
No, this is absolutely wrong.
-----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iF4EAREIAAYFAlMAt9UACgkQja8UbcUWM1xYQwD5Aen79rXU5sl34zKapBMp7JYS 1OSAWoT23Am//DT3ZG8A/2uOYGevEjX0K/zCKtFaleK3mWGdSlUBt12H6Hl8Zapk =EJ3T -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 17/02/14 00:06, Carlos E. R. wrote:
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Huh, sorry,
unintentional double post. Thunderbird bug, apparently.
Sometimes Th does not use the default smtp server (postfix) and sends on its own. It thinks post failed, and sends again. It also thinks that it could not save copy in sent folder, and keeps trying, till aborted.
- -- Cheers / Saludos,
Nah, nah, nah.....don't blame Thunderbird! I've been using TB since.. oh, since Tutankhamun was a baby, and TB has never done this to me :-) . BC -- A civilisation is judged by how it treats the most vulnerable. Lauren Smith - 30 January 2014 -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On 2014-02-17 07:43, Basil Chupin wrote:
On 17/02/14 00:06, Carlos E. R. wrote:
Huh, sorry,
unintentional double post. Thunderbird bug, apparently.
Sometimes Th does not use the default smtp server (postfix) and sends on its own. It thinks post failed, and sends again. It also thinks that it could not save copy in sent folder, and keeps trying, till aborted.
Nah, nah, nah.....don't blame Thunderbird!
I've been using TB since.. oh, since Tutankhamun was a baby, and TB has never done this to me :-) .
You gotta be kidding. It has done that same thing to me twice this week, and other times before. Just check the headers of my emails and compare. - -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" (Minas Tirith)) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iF4EAREIAAYFAlMCDbIACgkQja8UbcUWM1xpIAD+LPYZMl9xJwMcBnRXz2ddPWTW m3nhTAS+1GUd6xDlQ0kBAJzJdFFPXycXdl4yg3xOvz+JkvX9N0WK5YdHCAe0Ra2l =kg1q -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
Carlos E. R. wrote:
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Huh, sorry,
unintentional double post. Thunderbird bug, apparently.
Sometimes Th does not use the default smtp server (postfix) and sends on its own.
Can't say I've ever seen that happen, but my TB is quite old. What does "sends on its own" mean btw? That TB looks up the MX for the recipient domain and talks directly to that? -- Per Jessen, Zürich (9.3°C) http://www.hostsuisse.com/ - dedicated server rental in Switzerland. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
Sometimes Th does not use the default smtp server (postfix) and sends on its own.
smtp can be reached at local host (but not accepted by all ISP), at the provider smtp or at any other one. it's possible to set the smtp server to use in the th parameters. don't know if there is a fallback, never experienced that. I from time to time have the "can write to sent folder" error. I use my ISP smtp and at some hours it's very loaded and sometime fails don't know if this helps, nor is the headers of the duplicated mail giv es enough info, after passing the mailing list jdd -- http://www.dodin.org -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
Le 17/02/2014 16:28, jdd a écrit :
have the "can write to sent folder" error. I use my ISP smtp and at some hours
can't, of course - imap jdd -- http://www.dodin.org -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On 2014-02-16 10:26, Dylan wrote:
On 16/02/14 07:11, Basil Chupin wrote:
To begin with, unless you are using a refrigerator-type cpu cooler the temperature of your cpu cannot be less than the ambient temperature
This is not true - moving air from a fan carries heat away more effectively than static air, so the processor can be several degrees below the ambient temperature, provided the fan and heatsink are reasonably clean. This is exactly why people use room fans in hot weather and we are given a "wind chill" factor in winter weather reports.
No, this is absolutely wrong. Fans work with people because we perspire, we evaporate water to cool ourselves. With moving air, that evaporation is faster and we cool more. As for the wind chill, see the wikipedia definition (just one easy to find definition): «Wind-chill or windchill, (popularly wind chill factor) is the perceived decrease in air temperature felt by the body on exposed skin due to the flow of air.» So, if outside temp is 10C and windchill is -10C, and you mesure the temperatures of any objects outside, they will be at 10, not -10. Water will not freeze. - -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" (Minas Tirith)) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iF4EAREIAAYFAlMAsl0ACgkQja8UbcUWM1zEXgD/bnP7XB1oZLSQExW9eUC3M0bc Sd+6STMtf8XIuMot5IIA/RrWedyiZ0O29GDeNEqFUTS+C8qgIi6H2EEBxl4VhSNK =nxuI -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
Dylan <dylan@dylan.me.uk> wrote:
To begin with, unless you are using a refrigerator-type cpu cooler
On 16/02/14 07:11, Basil Chupin wrote: the
temperature of your cpu cannot be less than the ambient temperature
This is not true - moving air from a fan carries heat away more effectively than static air, so the processor can be several degrees below the ambient temperature, provided the fan and heatsink are reasonably clean. This is exactly why people use room fans in hot weather and we are given a "wind chill" factor in winter weather reports.
Wind alone just gets you to ambient faster. I brew beer as a hobby. If ambient is a few degrees too hot, I put the fermentation bucket in larger be verage cooler bucket and fill that with water. I then setup a fan to blow across the surface of the water. This guy didn't even use a fan, but he does use a towel to wick up the water and provide a bigger evaporation surface: http://samtierney.files.wordpress.com/2011/03/photo2.jpg The result is evaporation of the water bath. The evaporation process sucks energy out of the bath and cools it below ambient. That in turn cools the fermentation bucket. Greg -- Sent from my Android phone with K-9 Mail. Please excuse my brevity. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On Sunday, February 16, 2014 08:11:06 AM Greg Freemyer wrote:
Dylan <dylan@dylan.me.uk> wrote:
On 16/02/14 07:11, Basil Chupin wrote:
To begin with, unless you are using a refrigerator-type cpu cooler
the
temperature of your cpu cannot be less than the ambient temperature
This is not true - moving air from a fan carries heat away more effectively than static air, so the processor can be several degrees below the ambient temperature, provided the fan and heatsink are reasonably clean. This is exactly why people use room fans in hot weather and we are given a "wind chill" factor in winter weather reports.
Wind alone just gets you to ambient faster.
I brew beer as a hobby. If ambient is a few degrees too hot, I put the fermentation bucket in larger be verage cooler bucket and fill that with water. I then setup a fan to blow across the surface of the water.
This guy didn't even use a fan, but he does use a towel to wick up the water and provide a bigger evaporation surface: http://samtierney.files.wordpress.com/2011/03/photo2.jpg
The result is evaporation of the water bath. The evaporation process sucks energy out of the bath and cools it below ambient. That in turn cools the fermentation bucket.
Greg
Thanks everybody for your input. What i like most is going from a high temperature of a cpu via wind chill to brewing beer. :) Got enough input to fine tune my machine. Cleaning of the inards and replacing the thermal compound was done on last saturday. A broken fan was replaced. There are two 8 cm fans (Noisy), one sucking air in and one at the other end of the unit blowing air out. I can live with the actual temp of 60 to 65 C. Will have to dig deeper into the details of my cpu for the max temperature. -- Linux User 183145 using KDE4 and LXDE on a Pentium IV , powered by openSUSE 13.1 (i586) Kernel: 3.13.2-14.gb59b809-default KDE Development Platform: 4.12.2 20:44pm up 9:35, 4 users, load average: 1.13, 1.17, 1.38 -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On Sun, 16 Feb 2014 21:11:14 +0700 C. Brouerius van Nidek wrote:
There are two 8 cm fans (Noisy), one sucking air in and ...
The lesson? Don't spill beer where it will get sucked in! :-) [If you think it unlikely, years ago I added extra in/out fans to a hotter running system. One of my cats knocked over a forgotten half empty glass of water on the counter. The water ran off the end of the counter onto the CPU, ran down the side of the CPU to be sucked in by the fan which proceeded to spray it throughout the entire system as a fine mist. Nothing was left undamaged; a total loss.] -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
Dylan wrote:
On 16/02/14 07:11, Basil Chupin wrote:
To begin with, unless you are using a refrigerator-type cpu cooler the temperature of your cpu cannot be less than the ambient temperature
This is not true - moving air from a fan carries heat away more effectively than static air, so the processor can be several degrees below the ambient temperature, provided the fan and heatsink are reasonably clean. This is exactly why people use room fans in hot weather and we are given a "wind chill" factor in winter weather reports.
Nonsense. Yes, moving air will carry heat away faster than static air. But the device that you are cooling will not reach a temperature below the ambient air. You can approach the ambient temperature asymptotically, but never reach it. Your example of "wind chill" has to do with what is called "evaporative cooling", i.e. that if an object is wet (like the surface of your skin) and the water evaporates, the energy that goes into the phase change (evaporating the water) will be extracted from the device providing the water to begin with. Time for a basic physics class. Sorry -- Tony Alfrey tonyalfrey@earthlink.net "I'd Rather Be Sailing" -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 2/16/2014 7:41 AM, Tony Alfrey wrote:
Time for a basic physics class. Sorry
And don't forget to visit Bernoulli and Gay-Lussac in your tour of physics. Not that there is any fin+fan system that can achieve any pressure reduction sufficient to invoke the cooling effect. -- _____________________________________ ---This space for rent--- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
Am 16/02/14 07:39, schrieb C. Brouerius van Nidek:
My computer is working in a relative warm environment. In this room the temperature is an average of 26' C. Since years I keep an eye on the temperatures of the CPU, Motherboard and the rpm of the important coolers.
Having had to go several times today into my bios I discovered there that according to the bios the temperatures of the CPU where over 90' C and during the booting process the start-up speed was reduced.
On my gkrellm which is running on every desktop I have after the booting process a temp from 60' to 65' C.
Assuming that the temperatures may come from the same sensor I wonder which of the two I should trust. Looked into other temperature programs in Yast I found Eeze but found out that I do not even understand their documents. Any other KDE program which I could have a look into?
Try i7z ( http://code.google.com/p/i7z/ ) This also reads sensors. Did you transport the machine so that CPU and heat sink were loosened? Any work on CPU and heatsink? BR ME -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
participants (12)
-
Basil Chupin -
C. Brouerius van Nidek -
Carl Hartung -
Carlos E. R. -
Dylan -
Greg Freemyer -
jdd -
John Andersen -
MarkusGMX -
Per Jessen -
Peter -
Tony Alfrey