Wiring/Making Case Fans?

[darkarn]

I thinking of wiring case fans. As in, I have a bag of Nidec BETA V TA450DC (B34262-34) fans lying around and I think they can be used as case fans lol.

For starters, where can I buy those connectors? The fans have wires but no connectors

 

[royfrosty]

Buy from slt. Last floor. They have whatever you need

 

[darkarn]

Buy from slt. Last floor. They have whatever you need

They open on Sundays or Mondays?

 

[wacko]

They open on Sundays or Mondays?

Mondays yes, Sundays only selected few shops will be open.

 

[darkarn]

Mondays yes, Sundays only selected few shops will be open.

Thanks

But meanwhile I checked the fans again, seems to me that I can wire only the red and black wires?

The yellow and green wires are alarm and fan control; not sure what these mean...

 

[Krabs.]

just did a google search , that fan is rated 9.x watt

example asus noted their fan 12v output is max 1000mAh = 12watt

yesterday I was browsing these industrial OEM fans , wow .... so many 20watt 30watt range .... if plug to motherboard sure break the motherboard

 

[darkarn]

just did a google search , that fan is rated 9.x watt

example asus noted their fan 12v output is max 1000mAh = 12watt

yesterday I was browsing these industrial OEM fans , wow .... so many 20watt 30watt range .... if plug to motherboard sure break the motherboard

Got a point there, going to be careful about this.

I saw a link where someone managed to use only 5V with these fans but had a problem with the other two cables (see: http://www.overclockers.com/forums/showthread.php/351752-Help-Wiring-a-Fan and http://web.archive.org/web/20111029045200/http://www.nidec.com/designoptions/options.htm# )

I think now the bigger issue is how to use them as I noticed that they are unusually thick compared to the usual case fans.

I need to make sure this is feasible before I spend time and money on this project

 

[yusoffb01]

You need to buy fan controller to use. I changed from lousy cooler master fan to a 12v 3000rpm fan. Motherboard headers don't work

 

[darkarn]

You need to buy fan controller to use. I changed from lousy cooler master fan to a 12v 3000rpm fan. Motherboard headers don't work

Thanks, so in other words these fans will either be at full blast or manually controlled?

 

[yusoffb01]

Thanks, so in other words these fans will either be at full blast or manually controlled?

Powerful fans spin too slowly thru headers.

Dan controller provide enough vpower to spin faster and u can manually control speed. As for headers just buy 4 pin to 3 pin from eBay, cut one of the headers dont dont fit fan controller and wire it yourself

 

[commach]

Thanks, so in other words these fans will either be at full blast or manually controlled?

Even though the wires are there for PWM control, it's not a straight forward idiot proof electronic circuit to control a fan designed for PWM control.

Basically, there are 2 ways to control PWM fan, high or low frequency PWM. Most PWM fan are designed for high frequency above the 20kHz range and not low. The reason is rather simple, moves the noise beyond the audible range of human. This NIDEC fan is likely to be a high frequency PWM model, you need to add a pull up resistor (act as a switch) to the circuit in order for the PWM to work.

 

[darkarn]

Powerful fans spin too slowly thru headers.

Dan controller provide enough vpower to spin faster and u can manually control speed. As for headers just buy 4 pin to 3 pin from eBay, cut one of the headers dont dont fit fan controller and wire it yourself

Ah I see, I thought fan controllers are only for people who want real-time speed control of their fans

Even though the wires are there for PWM control, it's not a straight forward idiot proof electronic circuit to control a fan designed for PWM control.

Basically, there are 2 ways to control PWM fan, high or low frequency PWM. Most PWM fan are designed for high frequency above the 20kHz range and not low. The reason is rather simple, moves the noise beyond the audible range of human. This NIDEC fan is likely to be a high frequency PWM model, you need to add a pull up resistor (act as a switch) to the circuit in order for the PWM to work.

Wow, thanks, I didn't even know that there are two types of PWM fans like this; I was under the impression that there is only one type based on what I am seeing in aftermarket case fans sold online or in SLS.