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Fans could generate electricity and damage motherboard ?

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Skybuck Flying
Guest

Thu Sep 02, 2010 1:13 am   



Hello,

I just saw a dutch technician mention the following possibility of damaging
a motherboard when cleaning the PC of dust and I wonder if there is any
thruth in it, in short the technician writes the following:

"Be carefull not to make the fans spin real fast because then they could
start generating electricity and damage the motherboard ?!"

How much thruth is in that sentence ?! Should motherboards be equiped with
fan-back-surge protectors ?

Bye,
Skybuck.

Ghostrider
Guest

Thu Sep 02, 2010 1:49 am   



Well...the technician probably meant generating static
electricity. Depends on a lot of different factors, such
as speed of fan rotation, composition of the fan blades,
size and type of particulate matter being blown around,
atmospherics, nearby kitty cat and/or fur and/or dander,
and so on. Everything is usually OK so long as fan does
not decide to become a Windhurst Machine.

GR


On 9/1/2010 5:13 PM, Skybuck Flying wrote:
Quote:
Hello,

I just saw a dutch technician mention the following possibility of damaging
a motherboard when cleaning the PC of dust and I wonder if there is any
thruth in it, in short the technician writes the following:

"Be carefull not to make the fans spin real fast because then they could
start generating electricity and damage the motherboard ?!"

How much thruth is in that sentence ?! Should motherboards be equiped with
fan-back-surge protectors ?

Bye,
Skybuck.



John Larkin
Guest

Thu Sep 02, 2010 1:51 am   



On Thu, 2 Sep 2010 02:13:18 +0200, "Skybuck Flying"
<IntoTheFuture_at_hotmail.com> wrote:

Quote:
Hello,

I just saw a dutch technician mention the following possibility of damaging
a motherboard when cleaning the PC of dust and I wonder if there is any
thruth in it, in short the technician writes the following:

"Be carefull not to make the fans spin real fast because then they could
start generating electricity and damage the motherboard ?!"

How much thruth is in that sentence ?!


Zero. None.

John

Sjouke Burry
Guest

Thu Sep 02, 2010 1:58 am   



John Larkin wrote:
Quote:
On Thu, 2 Sep 2010 02:13:18 +0200, "Skybuck Flying"
IntoTheFuture_at_hotmail.com> wrote:

Hello,

I just saw a dutch technician mention the following possibility of damaging
a motherboard when cleaning the PC of dust and I wonder if there is any
thruth in it, in short the technician writes the following:

"Be carefull not to make the fans spin real fast because then they could
start generating electricity and damage the motherboard ?!"

How much thruth is in that sentence ?!


Zero. None.

John

The fan itself might croak, the internally generated voltage might

toast the control IC, but it wont blow the motherboard.

Tom Lake
Guest

Thu Sep 02, 2010 2:07 am   



"Ghostrider" <" <00> wrote in message
news:L-idndBTO807aePRnZ2dnUVZ_uWdnZ2d_at_supernews.com...
Quote:

Well...the technician probably meant generating static
electricity.

Probably not. An electric motor can act as a generator as well.

Tom Lake

m II
Guest

Thu Sep 02, 2010 2:40 am   



Tom Lake wrote:
Quote:

"Ghostrider" <" <00> wrote in message
news:L-idndBTO807aePRnZ2dnUVZ_uWdnZ2d_at_supernews.com...

Well...the technician probably meant generating static
electricity.

Probably not. An electric motor can act as a generator as well.

Tom Lake


Don't forget the circuitry between the multi-phase fan and it's power
supply. That's the price of brushless operation.

DC in and multi phase to the motor. The generated voltage in the motor
would have to get back through the cyclical (3 phase ?) switching stuff.

I've seen small stepper motors used in homemade windmills, but they
used only rectifying diodes, similar to a car alternator.




mike

personaobscura
Guest

Thu Sep 02, 2010 2:57 am   



On Thu, 2 Sep 2010 02:13:18 +0200, "Skybuck Flying"
<IntoTheFuture_at_hotmail.com> wrote:

Quote:
Hello,

I just saw a dutch technician mention the following possibility of damaging
a motherboard when cleaning the PC of dust and I wonder if there is any
thruth in it, in short the technician writes the following:

"Be carefull not to make the fans spin real fast because then they could
start generating electricity and damage the motherboard ?!"

How much thruth is in that sentence ?! Should motherboards be equiped with
fan-back-surge protectors ?

Bye,
Skybuck.

Clearly, that nitwit must be your older brother. It's got to be a genetic
thing.

Seriously, dude - do you ever think about what you're writing, or do you find
yourself constantly drifting off while your fingers are still working the
keyboard?

Paul Hovnanian P.E.
Guest

Thu Sep 02, 2010 2:59 am   



Yes, yes. Fans are very dangerous. Take them all out of your PC
immediately.

Take your motherboard out as well. Then nothing can harm it.

--
Paul Hovnanian mailto:Paul_at_Hovnanian.com
------------------------------------------------------------------
"Grant me the strength to change what I can, the ability to accept
what I can't, and the incapacity to tell the difference."
-- Calvin (of Calvin and Hobbes)

Tom Lake
Guest

Thu Sep 02, 2010 3:53 am   



"Paul Hovnanian P.E." <Paul_at_Hovnanian.com> wrote in message
news:4C7F04ED.B533121_at_Hovnanian.com...
Quote:
Yes, yes. Fans are very dangerous. Take them all out of your PC
immediately.

Thank you for that advice! I tried it and now instead of a chilly 70 deg C
my system runs
at a nice, toasty 250 deg C. Much nicer! Plus, I can read by the red glow
of the CPU!

Tom L

Paul Hovnanian P.E.
Guest

Thu Sep 02, 2010 4:39 am   



Tom Lake wrote:
Quote:

"Paul Hovnanian P.E." <Paul_at_Hovnanian.com> wrote in message
news:4C7F04ED.B533121_at_Hovnanian.com...
Yes, yes. Fans are very dangerous. Take them all out of your PC
immediately.

Thank you for that advice! I tried it and now instead of a chilly 70 deg C
my system runs
at a nice, toasty 250 deg C. Much nicer! Plus, I can read by the red glow
of the CPU!

This was advice for Skybuck. We eagerly await the inevitable

~y oodsou>#w4ko NO CARRIER.

And then silence.

--
Paul Hovnanian mailto:Paul_at_Hovnanian.com
------------------------------------------------------------------
Keep your gnosis out of my business!

Mike Tomlinson
Guest

Thu Sep 02, 2010 5:28 am   



In article <e7cc4$4c7eec13$54190f09$26127_at_cache2.tilbu1.nb.home.nl>,
Skybuck Flying <IntoTheFuture_at_hotmail.com> writes

Fuck off back into my killfile. *plonk*

--
(\__/)
(='.'=)
(")_(")

Glenn Gundlach
Guest

Thu Sep 02, 2010 5:50 am   



On Sep 1, 6:57 pm, personaobscura <personaobsc...@nochance.com> wrote:
Quote:
On Thu, 2 Sep 2010 02:13:18 +0200, "Skybuck Flying"

IntoTheFut...@hotmail.com> wrote:
Hello,

I just saw a dutch technician mention the following possibility of damaging
a motherboard when cleaning the PC of dust and I wonder if there is any
thruth in it, in short the technician writes the following:

"Be carefull not to make the fans spin real fast because then they could
start generating electricity and damage the motherboard ?!"

How much thruth is in that sentence ?! Should motherboards be equiped with
fan-back-surge protectors ?

Bye,
 Skybuck.

Clearly, that nitwit must be your older brother. It's got to be a
genetic
thing.

Seriously, dude - do you ever think about what you're writing, or
do you find
yourself constantly drifting off while your fingers are still
working the
keyboard?

Drifting off implies he had a handle on it in the first place. I
sincerely doubt it.



mpm
Guest

Thu Sep 02, 2010 9:24 pm   



On Sep 1, 7:49 pm, Ghostrider <" <00> wrote:
Quote:
Well...the technician probably meant generating static
electricity. Depends on a lot of different factors, such
as speed of fan rotation, composition of the fan blades,
size and type of particulate matter being blown around,
atmospherics, nearby kitty cat and/or fur and/or dander,
and so on. Everything is usually OK so long as fan does
not decide to become a Windhurst Machine.

GR

On 9/1/2010 5:13 PM, Skybuck Flying wrote:



Hello,

I just saw a dutch technician mention the following possibility of damaging
a motherboard when cleaning the PC of dust and I wonder if there is any
thruth in it, in short the technician writes the following:

"Be carefull not to make the fans spin real fast because then they could
start generating electricity and damage the motherboard ?!"

How much thruth is in that sentence ?! Should motherboards be equiped with
fan-back-surge protectors ?

Bye,
   Skybuck.- Hide quoted text -

- Show quoted text -

Don't forget, Skybuck.
The fan rotation is only relevant if you consider your location as
either being north or south of the Equator.
Fans don't generate static electricity if you're exactly on the
Equator.

See how easy it is to invent drivel, Skybuck.
Hell, you're an amateur.

wilby
Guest

Fri Sep 03, 2010 1:57 am   



On 9/1/2010 6:13 PM, Skybuck Flying wrote:
Quote:
Hello,

I just saw a dutch technician mention the following possibility of damaging
a motherboard when cleaning the PC of dust and I wonder if there is any
thruth in it, in short the technician writes the following:

"Be carefull not to make the fans spin real fast because then they could
start generating electricity and damage the motherboard ?!"

How much thruth is in that sentence ?! Should motherboards be equiped with
fan-back-surge protectors ?

Bye,
Skybuck.



No one has yet mentioned the fan bearings being driven so fast that they
become damaged. It is easy to destroy a ball bearing with a compressed
air hose, especially if you are cleaning the bearing with a solvent at
the time you over spin it.

Wilby

Mark Lloyd
Guest

Fri Sep 03, 2010 3:23 am   



On Wed, 01 Sep 2010 17:49:47 -0700, Ghostrider <" wrote:

Quote:
Well...the technician probably meant generating static electricity.

A motor can act as a generator.

Quote:
Depends on a lot of different factors, such as speed of fan rotation,
composition of the fan blades, size and type of particulate matter being
blown around, atmospherics, nearby kitty cat and/or fur and/or dander,
and so on. Everything is usually OK so long as fan does not decide to
become a Windhurst Machine.

GR

BTW, I used to have a computer running without a case. It worked OK,
although I had to cover it when the dog was inside (the dog had
overactive salivary glands, like 2 dog-food-filled icicles hanging from
the corners of his mouth).

[snip]

--
114 days until The winter celebration (Saturday December 25, 2010
12:00:00 AM).

Mark Lloyd
http://notstupid.us

"To surrender to ignorance and call it God has always been premature,
and it remains premature today." --Isaac Asimov, "On Religiosity," Free
Inquiry

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