700B cooling fan on the bay

Shoot I have this old ~5" 12V Delta fan from some Dell that came free in junk. I found this auction for a new one on eBay and it's under 20 bucks in some cases.

NOW THAT'S A FAN.

$_12.JPG​

[TABLE="class: specification"]
[TR]
[TD="class: name"]Fan Size
[/TD]
[TD="class: desc"]120mm
[/TD]
[/TR]
[TR]
[TD="class: name"]Bearing Type
[/TD]
[TD="class: desc"]Ball Bearings
[/TD]
[/TR]
[TR]
[TD="class: name"]RPM
[/TD]
[TD="class: desc"]3900 RPM
[/TD]
[/TR]
[TR]
[TD="class: name"]Air Flow
[/TD]
[TD="class: desc"]148.34 CFM
[/TD]
[/TR]
[TR]
[TD="class: name"]Noise Level
[/TD]
[TD="class: desc"]51 dBA
[/TD]
[/TR]
[TR]
[TD="class: name"]Color
[/TD]
[TD="class: desc"]Black
[/TD]
[/TR]
[TR]
[TD="class: title, colspan: 2"]Physical Spec
[/TD]
[/TR]
[TR]
[TD="class: name"]Dimensions
[/TD]
[TD="class: desc"]120 x 120 x 38mm
[/TD]
[/TR]
[TR]
[TD="class: title, colspan: 2"]Features
[/TD]
[/TR]
[TR]
[TD="class: name"]Features
[/TD]
[TD="class: desc"]Rated Voltage : 12V

Operating Voltage Range : 4 ~ 13.4 V

Input Current : 1.60 Amp

Input Power : 19.20 Watt

Maximum Air Pressure : 15.29 mm H?

This Delta AFC1212DE 120x38mm fan is special made for Dell computers, it is compatible with Dell P/N: D8794 ,Y4574, H7058, D6168, D8794,CH9743, G9096
Dell Dimension: 3100 5100 5150 E310 E510 E520 E521 9100, 9150, 9200, XPS 400, XPS 410

Dell Precision: 380, 390

Dell PowerEdge: SC440, SC430 830

Dell Precision Workstation: 690, 380, 390

Dell Optiplex Systems: GX280-05 210L, GX320, GX520 MT, GX620 MT, GX740, GX745, GX745c

It comes with 4 wire lead (white=TAC sensor, red=power, black=gnd, blue=PWM control) to 5 pin Dell connector

PWM fans provide additional airflow by using Pulse Width Modulation (PWM) to automatically adjust fan speed according to the CPU load. The fan can be idled down and thus be much quieter. The PWM chip in the motor allows an exact fan speed control via BIOS.


[/TD]
[/TR]
[TR]
[TD="class: name"][/TD]
[TD="class: desc"][/TD]
[/TR]
[/TABLE]
 
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Ya know.... looking at the pictures of that thing. It's only 3 pieces of sheet metal with a couple of bends in them and screwed together. It's kind of a rhetorical question but how difficult would it be to bend one of those up if you had an original to use as a template? I'd think most any auto-body man could make one to fit a standard size fan. Good chance I'm missing something here but.......
 
there are many other 120mm fans out there that don't need Pulse Width Modulation to control the speed, but think of the possibilities...

Building a fan controller that adjusts to the output of the amp and how hard it is working.

HMMMM...

And that's quite a big fan!
 
I have a fan on my Yammie thats plugged into the pre that has 3 speeds when the pre goes on the fan cools the amp , for a lot less than 200.00
 
I still have that multi-fan speed controller Web had put in a tower he sent and all I have to do is give it a power source and crank fans up or down. Very useful for cooling multiple amps and equipment that gets warmed up, I would think.
 
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