This is not a question about Linux actually so sorry for the offtop.
I have opensuse 11 running on new PC with Core Quadro 9300. The CPU was shipped in boxed version, that means with its own intel cooler. So I got it installed together.
When running “sensors” in linux or Real Temp prog in Windows I get 50-60C as the CPU temperature depending on the load. Although 80C temp is specified as high (and 100C - as fatal) I just wonder - is it OK? I understand and totally concur with the opinion that CPU should be as cooler as possible, but is it really abnormal? Does anybody have C2Q? What is you temp?
The big thing to check is if the thermal pad between the CPU and cooler is properly placed… Though if I were you, I’d buy some thermal paste and use that instead, which can make quite a difference.
Keep in mind though that you now have the equivalent of FOUR CPUs in the same area as there was previously one… so heat build-up will increase.
Also, is that reading from a motherboard sensor or from the sensor in the CPU itself? If it’s the motherboard sensor, then you DEFINITELY should be concerned, but if it’s the sensor in the CPU core, not so much- I’ve had my Core duo hit 70, but that was under full load, it normally idles around 40. (This is in a laptop.)
I had a Pentium-D system once, and that processor would idle at 55 and reach 65 under load. It didn’t hurt the CPU, but it made the fan run full on all the time.
I use Arctic Silver thermal paste. It seems to work well for me, and I’ve also heard many people say it’s the best. My dual-core 2.2 GHz AMD idles at 30C and reaches 49 after 20 minutes at full load. I think AMD chips run cooler than Intel chips, generally speaking, but this is not necessarily an advantage.
I have not observed any problems with CPU yet (no slowing down or other symptoms etc.). But since it is a PC (not a notebook, in which all temps are generally higher) I am still conserned with this values.
May be it is indeed to replace the thermal paste.
Try it tommorow.
OK,
Ive installed 120*120 cm, 80*80 cm and PCI-slot fans. That Ive replaced the thermal paste to the one I like. As a result Ive this for idle
Sys Temp: +51.0°C (high = +82.0°C, hyst = +1.0°C) sensor = thermistor
CPU Temp: +44.0°C (high = +80.0°C, hyst = +75.0°C) sensor = diode
AUX Temp: +34.0°C (high = +80.0°C, hyst = +75.0°C) sensor = thermistor
(That means that my CPU is now cooler than the MB ?! )
That means that MB temp is actually not changing.
I`am using ASUS P5-KPL-VM. May it be any problem?
try adding a side-fan or work with open case for a few hours and check that reading again
That means that my CPU is now cooler than the MB ?
could be,it could also show a bogus value.
And by the way, does anybody knows what does AUX temp stands for?
there is no standard for the “Aux” temperature could show the temperature around the CPU or the motherboard, or might be a non-connected wire of the sensor chip
For full load the temperature never exceeds 68, so considering the Intel specification that should stand for OK.
I am still concerned with System temperature - 50C. It is too hot. I have tried opening the case after a night of full load and the MB was cool, even the North bridge was cool enough - definitely not 50C. So I am starting to think of a bogus sensor.
Could you recommend something to check it ?
And by the way - is it ok that different cores have different temperature?
Thanks.
>
> Hello,
> thats me one again.
> I am working on my computer for almost two weeks by now and I am
> enjoying my life!
>
> This is my sensors output
> Sys Temp: +50.0°C (high = +82.0°C, hyst = +1.0°C)sensor =
> thermistor
> CPU Temp: +43.0°C (high = +80.0°C, hyst = +75.0°C)sensor = diode
> AUX Temp: +33.5°C (high = +80.0°C, hyst = +75.0°C)sensor =
> thermistor
> cpu0_vid: +0.000 V
>
> coretemp-isa-0000
> Adapter: ISA adapter
> Core 0: +49.0°C (high = +80.0°C, crit = +100.0°C)
>
> coretemp-isa-0001
> Adapter: ISA adapter
> Core 1: +50.0°C (high = +80.0°C, crit = +100.0°C)
>
> coretemp-isa-0002
> Adapter: ISA adapter
> Core 2: +45.0°C (high = +80.0°C, crit = +100.0°C)
>
> coretemp-isa-0003
> Adapter: ISA adapter
> Core 3: +47.0°C (high = +80.0°C, crit = +100.0°C)
>
>
> For full load the temperature never exceeds 68, so considering the
> Intel specification that should stand for OK.
>
> I am still concerned with System temperature - 50C. It is too hot. I
> have tried opening the case after a night of full load and the MB was
> cool, even the North bridge was cool enough - definitely not 50C. So I
> am starting to think of a bogus sensor.
>
> Could you recommend something to check it ?
> And by the way - is it ok that different cores have different
> temperature?
> Thanks.
>
>
If you read the sensors documentation and look at the datasheets for the
temperature sensors, you’ll note that there are several types of sensors
which could be in use, along with varying formulae for them. It’s quite
possible that the default formula and offsets used in an untweaked sensors
output could be wrong. Often you need to take the temperature using a
contact thermometer and then adjust the formula constants and offsets to
cause the formula to track the actual temperature properly.
Have a look at the sensors.conf configuration file and see what they’re using
as constants and offsets… Be prepared, it’s heavy reading.
(The little laser guided thermal temperature sensors work too)