adapter and fans dont work...wad went wrong...

09-12-2006, 11:57 PM

pics in my gallary under adapter...
i connected everything correctly...
and tested at the connections there is current flowing thru...but it jus wont work...

09-12-2006, 11:58 PM

wads e big big round round thing..
can cut away anot?

11-12-2006, 11:44 AM

Did you check the polarity? Since is DC fans, try reverse the 2 wires and see if it works. Else maybe the fan spoilt?

11-12-2006, 12:55 PM

okie will gif it a try..
cos the fans i jus pull out from my computre..
comfirm working...

11-12-2006, 06:42 PM

For DC motor fan, polarity does not matter. A change of polarity will only cause in a change for rotational direction. So no matter which way you insert the wire, it should rotate, the only different is the direction (unless there is additional diode limiting the direction of flow of the current, usually there should not be).

I can't really see the picture clearly, I think there are 2 pairs of wire, meaning there is a total of 4 wires. Separate the wires, insert 2 wires of the the same colour into the same terminal of the wire connector. An the other 2 into the next terminal, it should work.

elimmel · 11-12-2006, 06:56 PM

maybe this article from petfrd will help

http://www.petfrd.com/forum/articles...rticle&artid=6

11-12-2006, 08:29 PM

Quote:

Originally Posted by [C]irRuS

For DC motor fan, polarity does not matter. A change of polarity will only cause in a change for rotational direction.

dipending on the brand, I happen to have fan that wont work when polarity is reverse.

11-12-2006, 08:35 PM

Quote:

Originally Posted by anzp85

wads e big big round round thing..
can cut away anot?

That round thing is ferrite core, used to reduce noise. You can cut it off, not that you are trying to pass the EMC.

12-12-2006, 02:35 AM

yeah..
i got it..
the polarity was wrong..
aiyo...i went thru so much trouble..
jus didnt notice tt the polarity was wrong..
anyway it was made using a hard disk cooler which fitted jus nice when i lean it on my lights...
shiok shiok...

09-12-2006, 11:57 PM	#1
anzp85 Guest Posts: n/a	adapter and fans dont work...wad went wrong... pics in my gallary under adapter... i connected everything correctly... and tested at the connections there is current flowing thru...but it jus wont work...

09-12-2006, 11:58 PM	#2
anzp85 Guest Posts: n/a	wads e big big round round thing.. can cut away anot?

11-12-2006, 11:44 AM	#3
tonylai Guest Posts: n/a	Did you check the polarity? Since is DC fans, try reverse the 2 wires and see if it works. Else maybe the fan spoilt?

11-12-2006, 12:55 PM	#4
anzp85 Guest Posts: n/a	okie will gif it a try.. cos the fans i jus pull out from my computre.. comfirm working...

11-12-2006, 06:42 PM	#5
[C]irRuS Guest Posts: n/a	For DC motor fan, polarity does not matter. A change of polarity will only cause in a change for rotational direction. So no matter which way you insert the wire, it should rotate, the only different is the direction (unless there is additional diode limiting the direction of flow of the current, usually there should not be). I can't really see the picture clearly, I think there are 2 pairs of wire, meaning there is a total of 4 wires. Separate the wires, insert 2 wires of the the same colour into the same terminal of the wire connector. An the other 2 into the next terminal, it should work.

11-12-2006, 06:56 PM	#6
elimmel Senior Dragon Join Date: Oct 2003 Posts: 4,576	maybe this article from petfrd will help http://www.petfrd.com/forum/articles...rticle&artid=6

12-12-2006, 02:35 AM	#9
anzp85 Guest Posts: n/a	yeah.. i got it.. the polarity was wrong.. aiyo...i went thru so much trouble.. jus didnt notice tt the polarity was wrong.. anyway it was made using a hard disk cooler which fitted jus nice when i lean it on my lights... shiok shiok...

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