Fan wiring

Zmufflerman · 28-August-05, 01:57 PM

OK.. so i've got a bunch of fans...and no fan controller. My question is, until I can afford a fan controller, can I wire two or three fans together?? Will this lessen the efficency of the fans by making them run slower, or is it ok to do this. If I can do this, should I wire them in series or parallel?? Thanks for any suggestions.

BigAkita · 28-August-05, 04:45 PM

As long as you are running them directly from a 12V lead, you can wire them together either way. Do not wire fans together and attempt to run them off a mobo header.

Nerdz · 28-August-05, 04:48 PM

Wire them in parallel and they will get the same voltage. DO not wire in series..they probably wont start...

Spectrum · 28-August-05, 04:54 PM

Cooler Master Aerogate I Fan Speed Controller @ SVC for $4.99.

Zmufflerman · 28-August-05, 07:42 PM

Thanks guys.. I really appreicate the help.

Zmufflerman · 29-August-05, 09:45 PM

Quote:

Originally Posted by Spectrum


	Cooler Master Aerogate I Fan Speed Controller @ SVC for $4.99.

Thanks for the link... cool cool.. shootin paint is reallllly fun tooo.. another place and time though.. thanks again..Z

ronnie5938 · 28-September-05, 11:27 PM

I purchased a fan controller from Radio Shack that works great for $3.50

I'm using with a 120x38mm Delta 130 CFM fan which was so noisy I had to back it off.

Part # 271-265 25-Ohm Rheostat

billb · 29-September-05, 12:17 PM

Quote:

Originally Posted by ronnie5938


	I purchased a fan controller from Radio Shack that works great for $3.50 I'm using with a 120x38mm Delta 130 CFM fan which was so noisy I had to back it off. Part # 271-265 25-Ohm Rheostat

That resistor is only 3 watts. should be good for one fan. You have to match the wattage of the resistor to the wattage draw of the fans(s). you are controllong.

lAnonymousl · 29-September-05, 03:12 PM

Quote:

Originally Posted by billb


	You have to match the wattage of the resistor to the wattage draw of the fans(s). you are controllong.

The wattage rating of a resistor has nothing to do with the wattage rating of the fan(s). It refers to to the power dissipated in the resistor.

billb · 02-October-05, 11:39 AM

Quote:

Originally Posted by lAnonymousl


	The wattage rating of a resistor has nothing to do with the wattage rating of the fan(s). It refers to to the power dissipated in the resistor.

When a 3 watt variable resistor tries to dissipate 5 watts ( ie when you turn down the speed on a 10 watt fan) the resistor will fry. Any resistor will be fine as long as you don't ask it to dissipate more watts (hence more heat) than it is rated for. They don't burn out on full speed, thay burn out when asked to add resisyance to the circut when you turn down the speed.

28-August-05, 01:57 PM		#1 (permalink)
Zmufflerman Apex Techie Lite	Fan wiring OK.. so i've got a bunch of fans...and no fan controller. My question is, until I can afford a fan controller, can I wire two or three fans together?? Will this lessen the efficency of the fans by making them run slower, or is it ok to do this. If I can do this, should I wire them in series or parallel?? Thanks for any suggestions.

28-September-05, 11:27 PM		#7 (permalink)
ronnie5938 Apex Techie Wannabe	Fan Controller I purchased a fan controller from Radio Shack that works great for $3.50 I'm using with a 120x38mm Delta 130 CFM fan which was so noisy I had to back it off. Part # 271-265 25-Ohm Rheostat

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28-August-05, 04:45 PM		#2 (permalink)
BigAkita n00b-ass reviewer	As long as you are running them directly from a 12V lead, you can wire them together either way. Do not wire fans together and attempt to run them off a mobo header.

28-August-05, 04:48 PM		#3 (permalink)
Nerdz Sir Knight of Spamalot	Wire them in parallel and they will get the same voltage. DO not wire in series..they probably wont start...

28-August-05, 04:54 PM		#4 (permalink)
Spectrum Former GameApex Editor	Cooler Master Aerogate I Fan Speed Controller @ SVC for $4.99.

28-August-05, 07:42 PM		#5 (permalink)
Zmufflerman Apex Techie Lite	Thanks guys.. I really appreicate the help.