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Athlon II x4 640-hot CPU...cool cores

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Anonymous
a b à CPUs
March 15, 2011 6:31:01 PM

Hi.
I've a question about temperature of my Athlon II x4 640 (mobo:Asus M2n32 sli deluxe, cooler:Scythe Katana 2)

There is a significant discrepancy between core temp and CPU temp.

Idle, cool'n quiet:

CoreTemp:
http://www.fotosik.pl/pokaz_obrazek/pelny/5c8ab4091d6a9...

HardwareMonitor:
http://www.fotosik.pl/pokaz_obrazek/pelny/b6746762a5dff...


So cores are generally much cooler than CPU according to the programs mentioned above.

The same situation is under stress, for example, OCCT shows that max temp of cores reaches 55-60 degrees whereas HW or AsusProbe show that CPU temp is much much higher.....

So on the one hand there are cores which temperature is acceptable but on the other hand some programs show that CPU temp rises significantly but cores' temp is still fine.......

I haven't noticed any crashes, freezes and so on....



I've even taken the side panel off and reapplied thermalpaste::

http://www.fotosik.pl/pokaz_obrazek/pelny/ad06c0fb29925...

Idle (Cool'n Quiet):

http://www.fotosik.pl/pokaz_obrazek/pelny/b87fca3a735a9...

Some load:

http://www.fotosik.pl/pokaz_obrazek/pelny/fa22fc4b55ab0...


a c 863 à CPUs
March 15, 2011 7:40:36 PM

If I had to guess looking at the core temps is that tmpin0 and tmpin2 are the chipset temps.
Anonymous
a b à CPUs
March 15, 2011 7:54:30 PM

tmpin0 is the CPU temp
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a c 863 à CPUs
March 15, 2011 8:05:03 PM

Everywhere I read it tmpin1 is the CPU temp.
What is your thermal throttling for the CPU set at.
Anonymous
a b à CPUs
March 15, 2011 8:14:54 PM

The Athlon X4 640 has a max temp threshold of 71°C

rolli59 said:
Everywhere I read it tmpin1 is the CPU temp.


But it depends on the motherboard, doesn't it?
a c 863 à CPUs
March 15, 2011 8:24:55 PM

Quote:
The Athlon X4 640 has a max temp threshold of 71°C



But it depends on the motherboard, doesn't it?

You are showing 78°C tmpin0 that is past the thermal threshold! As far I have read that is the system temp which is still high, tmpin2 should be the north bridge.
The relation between the tmpin0 and core temps is unbelievable but cores to tmpin1 is believable!
Anonymous
a b à CPUs
March 15, 2011 8:34:17 PM

rolli59 said:

The relation between the tmpin0 and core temps is unbelievable


I know. Hence my question... :p 

tmpin0=cpu temp
tmpin1=mb temp
tmpin2=unused sensor
a c 103 à CPUs
March 16, 2011 10:09:43 AM

I don't have a solution for you but this info from my experience may help. On all 3 Athlon machines I have built the core temps have never been accurate ie the machine I am typing this on says core temps are 8C when the room temp is 19C. The CPU temps though always seemed accurate as far as I could tell and where called CPUTIN in hardware monitor. In hardware monitor I get 3 temps apart from the cores which are SYSTIN I assume the north bridge temp CPUTIN the CPU and AUXTIN that I am not sure about it the Athlon systems I have built it seems to run roughly 10C higher than the CPU in the Phenom system I built it reads 80-90C when the system is idle but drops to around 40C under load so I decided its a faulty sensor or a faulty reading.
a b à CPUs
March 16, 2011 1:37:30 PM

TMPIN0=cpu
TMPIN1=mb
TMPIN2= can be disregarded as it is for a sensor that this board does not have.
source: http://www.overclock.net/amd-motherboards/366989-offici...

Case flow,case flow. Your Scythe Katana 2 came with a four way mounting bracket ? If so mount it horizontally pulling air from the front toward the rear exhaust fan. You may need to move your memory out to the black slots so the HSF has clearance. As it is your not getting very much fresh air to the cpu pulling off the top of your gpu, and unless you have exhaust fans in the top of your case the warm exhaust air is being blown back into the case so to speak..
!