PC fan help

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STARKWEATHER

Hi,

Can someone tell me if I have installed this fan correctly? I know it's
upside-down (so the wire will reach) but is it the correct way round? It's
not blowing hot air into the case, is it?

Picture:
http://i2.tinypic.com/vi18xg.jpg



Regards,
 
Hi
It doesn't matter if the fan is upside down but it does matter whic
way round it is, ie. back to front wise

On some fans if you look carefully around the edge there is sometime
an indication in the form of one or two arrows, these point in th
dirextion of rotation and the direction of air flow... not all fan
have these markings

You can have the fan turned in any clockwise or anti clockwis
direction, but the airflow will only be affected if you have the bac
to front orientation wrong..... a bit like turning a playing car
round in a circle... but not face up or face down.

So from what you say you have nothing to worry about prividing yo
kept the back and front the same way so that the air flow is in th
required direction

Dav
 
STARKWEATHER said:
Can someone tell me if I have installed this fan correctly? I know it's
upside-down (so the wire will reach) but is it the correct way round? It's
not blowing hot air into the case, is it?

Picture:
http://i2.tinypic.com/vi18xg.jpg
Click to expand...

Chances are, yes. But you should A) look for the air direction arrow
on one of the sides of the fan, and/or B) stick you hand in there
and feel which way the air is moving.

*Most* fans have their discharge out of the strut side. In your case,
this would be blowing air into your computer, not exhausting it. If
this is a rear case fan (as it appears), this is likely the wrong
direction.
 
UCLAN said:
Chances are, yes. But you should A) look for the air direction arrow
on one of the sides of the fan, and/or B) stick you hand in there
and feel which way the air is moving.

*Most* fans have their discharge out of the strut side. In your case,
this would be blowing air into your computer, not exhausting it. If
this is a rear case fan (as it appears), this is likely the wrong
direction.
Click to expand...

Turn the case upside down
 
Hi,

Can someone tell me if I have installed this fan correctly? I know it's
upside-down (so the wire will reach) but is it the correct way round? It's
not blowing hot air into the case, is it?

Picture:
http://i2.tinypic.com/vi18xg.jpg
Click to expand...


The fan is backwards, blowing into the case when it should
exhaust out instead. On any *standard* type of fan like
that, the support struts for the center hub are always on
the side the air blows out.

If you are not going to install a fan in the empty space
above that one, you should get a blank plate and cover over
that area so it doesn't cause a short-loop that circumvents
proper chassis airflow.
 
kony said:
The fan is backwards, blowing into the case when it should
exhaust out instead. On any *standard* type of fan like
that, the support struts for the center hub are always on
the side the air blows out.

If you are not going to install a fan in the empty space
above that one, you should get a blank plate and cover over
that area so it doesn't cause a short-loop that circumvents
proper chassis airflow.
Click to expand...

Why is there any fuss about this? Turn the fan on, and feel which
way the air blows. If a PM motor you can probably reverse it by
reversing polarity, at a cost of efficiency.

--
Some informative links:
http://www.geocities.com/nnqweb/

http://www.caliburn.nl/topposting.html
http://www.netmeister.org/news/learn2quote.html
 
Why is there any fuss about this? Turn the fan on, and feel which
way the air blows. If a PM motor you can probably reverse it by
reversing polarity, at a cost of efficiency.
Click to expand...

True, but it is running in the picture and somehow this
wasn't enough...
 
Hi,

Can someone tell me if I have installed this fan correctly? I know it's
upside-down (so the wire will reach) but is it the correct way round? It's
not blowing hot air into the case, is it?

Picture:
http://i2.tinypic.com/vi18xg.jpg

Regards,
Click to expand...

One way to check is to remove the fan from the case's mounting bracket
and look at the sides of the fan frame/cowl. There's usually an arrow
molded into the plastic which indicates the direction of air flow.

The label isn't always a good indicator, because I've seen fans that
blow in the direction the label's facing, and others that blow in the
opposite direction. Since I don't own any cooler master fans, I can't
say what their convention is in this regard.
 
quote="Davy
It doesn't matter if the fan is upside down but it does matter whic
Click to expand...
way round it is, ie. back to front wise
an
On some fans if you look carefully around the edge there i
Click to expand...
sometimes an indication in the form of one or two arrows, these poin
in the dirextion of rotation and the direction of air flow... not al
fans have these markings
an
You can have the fan turned in any clockwise or anti clockwis
Click to expand...
direction, but the airflow will only be affected if you have the bac
to front orientation wrong..... a bit like turning a playing car
round in a circle... but not face up or face down.

an
So from what you say you have nothing to worry about prividing yo
Click to expand...
kept the back and front the same way so that the air flow is in th
required direction
Jeepers..... it's only a fan, all the guy has to do is to feel th
direction of air flow with his hand

Dav
 
CBFalconer said:
Why is there any fuss about this? Turn the fan on, and feel which
way the air blows. If a PM motor you can probably reverse it by
reversing polarity, at a cost of efficiency.
Click to expand...

I have never seen a standard DC case fan where reversing polarity
had any effect other than causing the fan to stop functioning.
 
MCheu said:
The label isn't always a good indicator, because I've seen fans that
blow in the direction the label's facing, and others that blow in the
opposite direction. Since I don't own any cooler master fans, I can't
say what their convention is in this regard.
Click to expand...

The label sticker can be put anywhere. The support struts are a truer
indicator. Note the pictures on:

http://www.coolermaster-usa.com/ProductList.aspx?catID=430

I'd say these fans also discharge on the strut side of the fan. (I see
that they place their ID sticker on the spinning hub *opposite* the
strut side.)
 
CBFalconer said:
Why is there any fuss about this? Turn the fan on, and feel which
way the air blows. If a PM motor you can probably reverse it by
reversing polarity, at a cost of efficiency.
Click to expand...
Fan motors are "brushless DC" PM. They don't reverse like the ones with
brushes, they just don't run with reversed polarity. It's hard to tell
which way they're blowing under those conditions. :-)
 
I have never seen a standard DC case fan where reversing polarity
had any effect other than causing the fan to stop functioning.
Click to expand...


Agreed, a typical brushed DC motor can be reversed with
reversed polarity but not computer fans. "Many" computer
fans are at least polarity protected so they wouldn't be
damaged by reversed polarity but on a really cheap one, it
could even kill the fan.
 
The label sticker can be put anywhere. The support struts are a truer
indicator. Note the pictures on:

http://www.coolermaster-usa.com/ProductList.aspx?catID=430

I'd say these fans also discharge on the strut side of the fan. (I see
that they place their ID sticker on the spinning hub *opposite* the
strut side.)
Click to expand...

Yes, a logo sticker but there is also a sticker on the back
over the bearingway that typically lists the model number
and brief specs like voltage and current.
 
STARKWEATHER said:
Can someone tell me if I have installed this fan correctly? I know it's
upside-down (so the wire will reach) but is it the correct way round? It's
not blowing hot air into the case, is it?

Picture:
http://i2.tinypic.com/vi18xg.jpg
Click to expand...


Put yourself in the place of the fan designer. Would you
put the groove for the wires on the side of the strut that the
air hits, or would you make the strut more streamlined by
putting the groove on the back of the strut? Would you
want the groove building up wads of dust by putting it
facing the airflow or facing away from the airflow?

The way you have it set up now, it's blowing air into the
case from the back and, presumably, out the front. Flip
the fan around.

*TimDaniels*
 
I would take the non tech approach.......put your hand in front of the fan
and see which way it is blowing...
 
STARKWEATHER said:
Hi,

Can someone tell me if I have installed this fan correctly? I know
it's upside-down (so the wire will reach) but is it the correct way
round? It's not blowing hot air into the case, is it?

Picture:
http://i2.tinypic.com/vi18xg.jpg



Regards,
Click to expand...

I see it's Made in China, so since it is on the other side of the world
it will be blowing exactly opposite of the way we would expect it to.
It's just like the water in the toilet bowl depending upon whether you
are in the Northern or Southern hemisphere.
 
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