[ltp] x61: Fan error

[Martin N]

Hello,

At 23:53 02/04/2015, you wrote:
>On 04/03/2015 12:36 AM, Rob Tomsick wrote:
> > I actually think the new site is an improvement for looking up
> > information.  It's certainly not any harder to find info about old
> > products.
> >
>Try that with "Thinkpad T23" or "Thinkpad X31" and you will understand
>what the new site is lacking. Not that a T23 or X31 are still very
>useful for the majority of people nowadays, but even these ancient
>models are still used and repaired by less demanding users.
>
>@Paul Bolle: Regarding fan cleaning with canned air, it is advisable to
>avoid the fan from spinning by blocking its rotors with a tooth pick or
>similar while blowing it out.
>
>As some users learned the hard way, impeding fast fan rotation during
>the dust cleaning prevents building up an electrical currency which in
>the worst case might fry a fuse on the motherboard, or worse.


How does that work?
Does the high fan rotation build up current in the coils which goes 
down the power
wire into the motherboard?

Interesting , I have not heard of that happening before.

thanks for your time.

Martin

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