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How to use a 3.00A PWM fan -- Delta AFC1212DE-PWM

post #1 of 17
Thread Starter 
I won this Delta on ebay:

http://www.ebay.com/itm/320872438223?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

My board says the CPU fan header can handle 1.00A max (assume the other headers are same).

To use it I figure I could just leave the PWM line in the 4-pin connector but power it with a 3-pin to molex adapter. I think I've seen a photo of that being done.

Is that possible?

Cause I tried it on a test fan and it did not receive power. It actually never spun up again (even with all wires returned to the 4-pin connector). Of course I checked to make sure each wire went where it was supposed to go, and I would be willing to try it again but I don't have another PWM fan that I can afford to lose right now.
Edited by samwiches - 3/29/12 at 11:29am
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post #2 of 17
Yep, a molex adapter should work fine.
Connections....
Black Pin1 Ground - molex
Red Pin2 Power - molex
Yellow Pin3 RPM - fan header
Blue Pin4 Pulse - fan header

pwm_diagram.jpg
post #3 of 17
Thread Starter 
I did it wrong then. I had the PWM wire by itself, leaving the others together as a normal 3-pin fan. Maybe power went up the RPM wire and killed it.
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post #4 of 17
I can't remember now how the sense works. Does the fan ground the pin on the header to ground (ie. m/b pin is +ve and sense is connected to ground inside the fan) or does it ground to the header (i.e. sense wire connected to +ve inside fan)?

Maybe the board will not produce PWM without sensing a fan attached?
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post #5 of 17
you can use something like this:

sxu3h38b16oqs655bqhf.jpg

I feed the PWM line to my custom controller, so I just using the 2 pins connector.
you can replace it with the ordinary 4 pins tough smile.gif
post #6 of 17
Thread Starter 
Here it is, a Delta AFC1212DE-PWM


485

It works, awesome. Thanks.

Maybe this is normal, but maybe someone can tell me for sure---the spindle is very loose and at low speed it makes a bad scraping noise if it's mounted up or down (worst when pointing upward, or while re-orienting). Even sideways it gently clunks/bumps around.

Hell... not a good medium/low speed operator. redface.gif
Edited by samwiches - 3/31/12 at 12:27pm
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post #7 of 17
Not all high speed fans sound good at low rpm's, kinda hit n miss if you know what I mean.
Nice work with the wiring thumb.gif
Edited by gymenii - 3/31/12 at 1:30pm
post #8 of 17
Thread Starter 
Thanks, my first re-pin. I guess it might as well get soldered but it doesn't even do the job I was expecting.

6mins in LinX:

~3900RPM: 74C
~1200RPM: 78C

tiredsmiley.gif

edit: WTH.. the fan just comes right apart.The retention ring is broken and bearing is damaged.

700
Edited by samwiches - 3/31/12 at 9:51pm
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post #9 of 17
the spindle shouldn't loose at any directions of the fan,
your next post seems to explain the problem....

you try put the ring back to the shaft to see if the fan was still usable,
here's the thread where you can see some folks do some "serious damage" with these kind of fans biggrin.gif

http://www.overclockers.com/forums/showthread.php?t=683048

Quote:
Originally Posted by samwiches View Post

Here it is, a Delta AFC1212DE-PWM
485
It works, awesome. Thanks.
Maybe this is normal, but maybe someone can tell me for sure---the spindle is very loose and at low speed it makes a bad scraping noise if it's mounted up or down (worst when pointing upward, or while re-orienting). Even sideways it gently clunks/bumps around.
Hell... not a good medium/low speed operator. redface.gif
Quote:
Originally Posted by samwiches View Post

Thanks, my first re-pin. I guess it might as well get soldered but it doesn't even do the job I was expecting.
6mins in LinX:
~3900RPM: 74C
~1200RPM: 78C
tiredsmiley.gif
edit: WTH.. the fan just comes right apart.The retention ring is broken and bearing is damaged.
700
post #10 of 17
Already been shown to you how to get it done, but here is mine.... biggrin.gif If you don't have a PWM controller, just send the PWM and tach wires to the CPU fan header and done.

450
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