Lan Barnes wrote:
On Fri, April 13, 2007 4:05 pm, Gus Wirth wrote:
Lan Barnes wrote:
My concern is the three copper tubes between the heat sink and the
radiator. Someone (Stewart? Andrew?) pointed me to the wikipedia page
that
explained that they're a whiz-bang heat transfer thingie. There was an
implication that they have a finite lifetime. A little grease on a
processor is one thing. A fancy proprietaty part is another.
It was me.
Gus
So you know the cheap fix, right? You, like, drill little holes with a
dremmel and fill them with Karo syrup and seal it with solder ... right?
Liquid sodium works better since it has higher thermal conductivity :O
Heat pipes don't wear out in normal use. They can be damaged, but the
copper ones would have to be abused pretty badly for that to happen.
I think it may be more of a problem with the fan or the fan controller.
I'm not sure how many speed steps the fan has, but it should probably be
coming on strong way before the CPU gets that hot.
Looking at the thermal design specs for a Pentium M CPU here
<http://www.intel.com/support/processors/mobile/pm/sb/cs-007971.htm> it
shows a max core temp of 100C. That's pretty hot and above the limit
you're seeing. So maybe the thing is working correctly and you just
haven't pushed it hard enough before to make it kick into high gear.
Gus
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