[ltp] Kick up the Fan.

linux-thinkpad@linux-thinkpad.org linux-thinkpad@linux-thinkpad.org
Wed, 3 Aug 2005 21:50:49 +0100 (BST)


On Wed, 3 Aug 2005, Bret Comstock Waldow wrote:

>> Yes - shutdown.  Is 92 degrees actually ok for a Pentium M?  Seems
>> awfully hot, but I haven't looked at the specs.
>
> Intel says 100C.

Thanks - helpful - yes, you'd think if it can boil water, it's
definitely over spec!  10 degrees then seems a bit close to me.

> T42 2378-XXQ (-FVU open box), P 1.7M, Seagate 80G Momentus 5400.2, stock
> CD-RW/DVD-ROM, Radeon 9600 M-10.
...
> Gentoo "emerge -Du world".  Compile for 8 hours straight at 100% (mostly) with
> periodic browsing, watching TV (on screen via Hauppauge PVR-USB2 tuner, so
> it's relevant), looking at code in Eclipse.  Temp goes to 57C - 62C.  Fan is
> on all the time.
>
> I'm watching the fan now (not compiling).  It varies between 2938 & 3110 rpm.
>
> I'm also using Paul Rivier's fan on/off script, and it's switching to 0
> periodically, then starting the fan again.  Temp is hovering around 42C
> (gkrellm).

Wow, either something changed between the T40 and the T42, or my
fan's breaking, or yours is souped up.  Mine hovers at about 44C
idle, but if I try a long compile that's cpu-bound, it will go as high
as 85-90C fairly easily.  Fan goes up from about 3500 to 4000 at most.

Others on this list seemed to be indicating theirs went that high
too.  What do you put your low temperature at high CPU down to?  I'd
like some too...

Maybe I should suck some of the fluff out of it..!