Thinkpads Forum

Hi guys,

Is there any utility or tricks that i can use to modify

THRM0 of ACPI Thermal Zone

Currrent:

Critical Temperature 91C
Passive Cooling Temperature 85C

My X31 is overheating, i do not know why, the fans seldom spins, I've to use NHC to dynamically set lower voltage & TPfan to manual speed=3

Critical temp at 91C is way too dangerous, even at my regular deskop that i ground critical @ 60 triggering beeps and shutdown at 70C

Passive Cooling at 85C is insane...my fan is not spinning at 60C, is there something wrong with my sensors? The temperature shown seems to be accurate; however fans not spinning even at 50 odd

It's causing alot of problems to my PCMCIA soundcard...it's terribly hot. it's at least 60C odd.

I wouldn't pay attention to that; I haven't seen a system go to only passive cooling at those thresholds. They are an upper limit at best and modification of them in Windows would require changes to the registry. It seems they are pretty universal, NHC and MobileMeter have them and every other utility I have looked at makes reference to it as well. I don't think that your X31 overheating has much to do with those therm zone thresholds; rather, it is most likely a problem with the fan. Those are pretty generic thresholds I have seen for most systems; in practice, the BIOS and the EC are the ones that compare the dumps of the temperature sensors registers, you can see this in BSD and Linux, and does some minor interpolation to figure out what speed to ramp the fan to and whether or not to hold it there for a given period of time.

Try using TP FCU on it and see how the fan responds.