3 pin fan but 4 pin on mobo

rincal · Jul 2, 2009

hi, i just got a new fan and find that it is 3 pin but original and connector on motherboard has 4 can i still fit the 3 pin?

joefriday · Jul 2, 2009

A 3 pin fan on a 4 pin mobo works great. It is tabbed so it will only fit one way. That last pin is for pwm control, which a 3 pin fan does not use.

505090 · Jul 3, 2009

it'll work fine you just don't get the speed management

photonboy · Jul 3, 2009

rincal · Jul 3, 2009

very grateful for replies - i'll give it a try.