PDA

View Full Version : Wiring on case fans


chimpuk
10-14-2006, 06:21 AM
Ive been getting a SFF Asus PC ready to sell, and have had to buy a new fan for the PSU as it had stopped working. Its a strange design, it just slides out when you unscrew, so a bit of soldering and its replaced

The new fan Ive bought to replace it though has the 3rd wire, the yellow one. What I want to know is: is that just a control wire?
Can I safely solder just the red and black wires from the PSU to it and it'll work fine?

Van Nugent
10-14-2006, 11:16 AM
The yellow wire is for the RPM signal so you can forget about it if you do not need to monitor the RPM of the fan.