Management of Thermal

Norberto Meijome freebsd at meijome.net
Mon Oct 8 02:53:54 PDT 2007


On Mon, 08 Oct 2007 11:16:01 +0200
Lars Engels <lme at FreeBSD.org> wrote:

> your temperature values are a little bit too high. On my Notebook
> (model name      : Intel(R) Pentium(R) M processor 1.73GHz) the CPU is  
> at between 50°C - 60°C when I use normal desktop applications and up  
> to 80°C when I compile something.
> You could open your case and look if there's dust in the airflow so  
> the fans cannot blow out all the hot air.
> I only use the powerd with "-a adaptive -b adaptive" flags. There  
> should be no need for the cpufreq module.

Hi Lars,
right. when doing nothing, or hardly anything, it sits around 70 or so. down to 40/50 if I'm on the train... so it does seem to work, just not when fully powered.

What I haven't configured at all is  powerd (so it's using the defaults)...I've been wondering how all the components that I listed before interact with each other...for example, i don't want my CPU to be eating cycles (and power) @ 2 GHz when I'm doing nothing.

I'll try your suggestions (kill cpufreq,tweak powerd to see how it goes ). 

BTW, how does one use/enable/configure speedstep features?

my CPU is 

CPU: Intel(R) Pentium(R) M processor 2.00GHz (1995.01-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x6d8  Stepping = 8
  Features=0xafe9fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,TM,PBE>
  Features2=0x180<EST,TM2>

thx :)
B
_________________________
{Beto|Norberto|Numard} Meijome

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