How to Hook Up Fans

newuser

Senior member
May 31, 2003
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Should I hook up my case fans to the mobo or the power source? Why
(I have connectors for either way, and adapters for 3pin to 4 with a RPM monitoring cable that can go back to the mobo)

(3) NMB 80mm Case Fan, Med RPM, 3pin

(3) 3pin-4pin Adapert w/seperate RPM cable
 
Apr 17, 2003
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if you have a high power fan like the smart fan 2 or tornado, go for the PSU. if you have a plain old fan, you can use the mobo connecters
 

BG4533

Golden Member
Oct 15, 2001
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Plug as many NMBs into the Mobo as possible, then if you dont have plugs use the adaptors. The mobo will let you monitor RPMs with less wires and you will be able to use a program like speedfan to reduce their voltages probably.