Splicing 3 lead fan to 2 lead adaptor?
#1
02-28-09, 03:26 PM
Splicing 3 lead fan to 2 lead adaptor?
I am thinking of buying a computer fan to replace noisy fans in a light fixture for my aquarium. I saw a cheap 1 on EBay.
It is:
Working voltage: DC12V
Operating current: 0.15A
Fan Speed: ~2500 R.P.M.
Low Noise.
The adapter has output of v 12 a1.25
The fan has 3 leads and the adapter has 2 leads. What do I do with the 3rd lead? Is a grounding lead? Will this truly be quiet?
Had a fan with:
Brushless Design / Sleeve Bearing
25.2 DBA / 45.000 Hrs. MTBF
2000 rpm fan Speed
12V DC / 0.10A / 1.2W
After 1 week it got very noisy. Anybody know why?
It is:
Working voltage: DC12V
Operating current: 0.15A
Fan Speed: ~2500 R.P.M.
Low Noise.
The adapter has output of v 12 a1.25
The fan has 3 leads and the adapter has 2 leads. What do I do with the 3rd lead? Is a grounding lead? Will this truly be quiet?
Had a fan with:
Brushless Design / Sleeve Bearing
25.2 DBA / 45.000 Hrs. MTBF
2000 rpm fan Speed
12V DC / 0.10A / 1.2W
After 1 week it got very noisy. Anybody know why?
#2
03-01-09, 06:48 AM
The third lead on fans is usually a speed monitor line so if your motherboard supports it, you can monitor it's speed or in some cases control it based on system temp.
If you're hooking it up with a 2 wire connector, just worry about the red and black, and leave the 3rd one disconnected.
If you're hooking it up with a 2 wire connector, just worry about the red and black, and leave the 3rd one disconnected.
#3
03-01-09, 12:45 PM
Originally Posted by Skizmo
The adapter has output of v 12 a1.25
I reset the this fan and now it is quiet
Brushless Design / Sleeve Bearing
25.2 DBA / 45.000 Hrs. MTBF
2000 rpm fan Speed
12V DC / 0.10A / 1.2W
I reset the this fan and now it is quiet
Brushless Design / Sleeve Bearing
25.2 DBA / 45.000 Hrs. MTBF
2000 rpm fan Speed
12V DC / 0.10A / 1.2W
#4
03-01-09, 06:53 PM
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