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#1 3 wire fans
Posted: Thu Mar 23, 2017 6:48 pm
by pre65
Can 3 wire computer fans be used with just 2 wires (ie black & red) ?
#2 Re: 3 wire fans
Posted: Thu Mar 23, 2017 8:07 pm
by SteveH
Yes, the third wire is a tacho output.
#3 Re: 3 wire fans
Posted: Thu Mar 23, 2017 8:35 pm
by pre65
Thanks.
3 wire ones are easier to source, and cheaper for the size I need.
#4 Re: 3 wire fans
Posted: Wed Mar 29, 2017 12:11 pm
by jack
#5 Re: 3 wire fans
Posted: Fri Mar 31, 2017 1:53 pm
by pre65
Thanks Nick, most helpful.