The goal of this thread is to compare values from Shimodax fan control tool (see this thread : http://forum.thinkpads.com/viewtopic.php?t=17715
I'm curious to see if we could isolate some temperatures and by examinating the difference between them, we could perhaps understand to which sensor it belongs...
My configuration is in signature.
Desktop use : 800Mhz @ 0.700Vcore, graphics to 104MHz/120Mhz (according to the powerplay minperf setting).
After 30 minutes of desktop use in a 20°C room i get these values :
Fan : 00 / Temp.: Highest 51°C ( 49 47 40 51 33 n/a 21 n/a 43 51 44 n/a )
After 3 minutes of prime95 (1866MHz @ 1.212Vcore) with fan blocked to 0 :
Fan : 00 / Temp.: Highest 71°C ( 71 53 43 61 35 n/a 21 n/a 52 54 51 n/a )
After some minutes of desktop use (prime95 stopped and fan always blocked to 0
Fan : 00 / Temp.: Highest 55°C ( 54 51 45 55 36 n/a 27 n/a 47 54 48 n/a )
Perhaps some of you remember of my "homemade cooling system" ? It consists in a copper sheet that bridges the 4 chips (cpu, gpu, north and south bridge).
As you see the 3rd temperature will continue to increase even after i stopped prime95 (this value will make 43°C -> 45°C as the CPU will make 71°C -> 54°C). Please confirm but i'm pretty sure that this value monitores one of the chips that my cooling system is bridging. It would be logical : the cpu gives its heat to the copper sheet, but as the fan is off the copper sheet will just share this heat with the other chips it is linked to.
So i guess that the 3rd value is the temperature of the gpu or northbridge or southbridge (the 3 other chips that are cooled by the copper sheet).
EDIT : BTW this 3rd value will also make a significant drop when i run the fan to level 7 :
Fan : 07 / Temp.: Highest 50°C ( 47 45 36 49 35 n/a 27 n/a 44 50 45 n/a )
2nd EDIT : After activating max perf for powerplay, the 4th value made a jump of 8°C (from 47°C to 55°C) in about 3 minutes. The 3rd value made a jump of 4°C and others remained stable. So it confirms more or less that the 3rd value belongs to the temp of one of the chipsets (north or south ?) since it is bridged to the gpu through the copper sheet. And the 4th is likely the gpu temperature.
Summary : after inspecting values changes in some situations i guess that :
- After gaming it seems that the 2nd and 3rd values are not those of chipsets... it seems that chipsets are monitored in the 3 last values
- 4th value is for the gpu