[ltp] Re: tpfand configuration for an X200s

John Li linux-thinkpad@linux-thinkpad.org
Wed, 3 Dec 2008 11:34:19 -0500


On Tue, Dec 02, 2008 at 01:14:03PM -0200, Henrique de Moraes Holschuh wrote:
> On Tue, 02 Dec 2008, John Li wrote:
> > Being stuck at a high speed seems to a bug somewhere, but the bottom
> > of my X200 (around the ram) does /seem/ to get warmer, faster with
> > Linux compared to Vista. Also on Vista, the fan only gets as loud when
> > doing something pretty CPU intensive for a while, and quickly slows
> > back down when idling. I don't have equipment to do empirical tests,
> > unfortunately, but does it make sense for Linux to be doing something
> > differently that causes a non-trivial temperature increase?
> 
> Yes.  But I'd suggest you find out if the fan on a X200 is supposed to be
> that loud at that RPM level, first.  Your fan might be a lemon.

Right after booting up (on a cold morning), speed is 0.

When it warms up a bit, speed is ~1940 and bordering on inaudible (in
a completely quiet room) unless I put my ear next to the vent.

Running "yes" for a few seconds, speed is ~3400 and on the loud side.
In a room with people talking, it's hard to notice, but is bothersome
in an otherwise quiet room.

This is with the hard drive spun down. The hard drive in my X200 is
actually relatively loud. When the fan gets to 3400, it's louder than
the hard drive.

Given that the fan is fine (close to inaudible) at lower speeds, I
don't think it's a hardware problem.


Thanks,
-John