On 12/15/11 18:09, Laurence wrote:
I just noticed that there's no fan activity on my thinkpad, and idle temps are
10-15c higher than they should be. Oddly, I'm having no problem using the
machine, the cpu climbs rapidly but has not exceeded 60c, though this is with
light use. The fan is about a year old.
I won't have a chance to open it up for a look for several hours ...
it's a T40, now with a "Dothan" 2.0mhz cpu
And now the fan just kicked on, leading to a temp drop, though it's about 8c higher than expected for the conditions. So I'll have to open it up and take a look: what should I look for? No clean, truly secure workspace will be available so few small parts can be pulled and I can't leave it disassembled.
thanks...
What you are looking for will be obvious, once you get in there.
There will be these gobs of dust. If you've really lived an unclean
life and had your ThinkPad be near a deep fryer, these gobs of
dust will be grease enabled, making for a much more interesting
experience cleaning it (as happened to a friend who worked in a
diner).
More normal environments offer standard dust, which the
fan gleefully collects. I usually start with a brush, to get the big
stuff out with, and then use a can of air. If you are a scuba diver,
you have a great air source to use. After that I stare at the fan
itself and clean it.
There are two schools of thought on cleaning a fan. Since it
has a motor, blowing at it makes the motor move, and that
generates small amounts of electricity. Some people insist
that you can damage the electronics on the system board with
that, and others disagree. I've never seen that myself, but
there are some IC technologies which could, in theory be hurt
by that.
It's usually a bad sign when the fan is so clogged that it doesn't
move...
--STeve Andre'
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