Kindbud421
Well-Known Member
If you have 3 wires from fan one is a temp sensor. I have used them... Only have to use 2 wires to make it run.
Wiring a PC fan to a 12 V adaptor
- Thread starter cacticat
- Start date
MICHI-CAN
Well-Known Member
Just to stress the potential hazards of dc 12. I have welded a ball stud connecting my tie rod to the the control arm with a car battery, the positive wire on jumper cables, a cb antenna and the carbon cores out of 4 d batteries. 20 miles into BFE 4 wheeling. DC is deadly and easily capable of starting a fire. Buy a store bought cheapo. Safer than "I think".
MICHI-CAN
Well-Known Member
PWM signal. Use 2 wire dc only. Need control otherwise you fry it.
rkymtnman
Well-Known Member
call you MICHI-guyver from now on!
Doug Dawson
Well-Known Member
I get it, I do all sorts of electrical. The fact is the OP is unsure what to do with a simple 3 wire fan. Nothing against OP, we all have our strong suites and electrical is not theirs. No shame in that. When you can purchase a certified new one for under $20 I feel there really is no up side to doing a DIY. At least if you are not sure about what you are doing. Just my opinion.
Doug Dawson
Well-Known Member
3rd wire on those fans is going to be a tach wire which provides a signal with frequency proportional to speed.
MICHI-CAN
Well-Known Member
Sadly had the mullet in my day. But grew up poor in the sticks. Wouldn't change it. hillbilly rocket science and U of R screwed made me fully independant.
MICHI-CAN
Well-Known Member
OP fried a PWM fan. Not a direct DC. Problem solved.
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