Solved Fan connections on Mobo Tags: Motherboards Power Supplies Fan Gigabyte Last response: October 14, 2011 7:05 PM in Motherboards Share Control_tech October 7, 2011 1:34:56 AM I have a Gigabyte GA-Z68X-UD3H-B3 and I have spots for 4 fan connections. CPU fan 4 pin Sytem fan 3 pin System fan 4 pin Power fan 3 pin My question is what is the signifigance of using these connections and what if the counterpart (power supply) has a 4 pin connection. More about : fan connections mobo Best solution ko888 a c 180 V Motherboard a c 815 ) Power supply October 7, 2011 1:59:27 AM A 4-pin fan header offers fan speed monitoring and PWM (Pulse Width Modulation) speed control as long as you're using a PWM controllable fan. A 3-pin fan header offers fan speed monitoring only. The fan runs at full speed unless it has its own speed control potentiometer or step down resistors. Fans plugged directly into a power supply connector has no fan speed monitoring and runs at full speed unless it has its own speed control potentiometer or step down resistors. Control_tech October 7, 2011 2:06:36 AM Thanks for the reply. So I can plug the 4 pin connector into the 3 pin connection and I will just lose out on the PWM? Related resources Fan connections on Mobo - Forum Chassis fan connections on my mobo ? - Forum Fan connections On mobo - Forum Dual fan connections question - Forum Case fan connections ? - Forum Can't find your answer ? Ask ! Get the answer ko888 a c 180 V Motherboard a c 815 ) Power supply October 7, 2011 3:21:26 AM Control_tech said:Thanks for the reply. So I can plug the 4 pin connector into the 3 pin connection and I will just lose out on the PWM? Yes. The fan will just operate at its maximum speed. Control_tech October 14, 2011 7:05:13 PM Best answer selected by Control_tech. Can't find your answer ? Ask ! Publish Related resources: ForumRosewill Blackhawk Fan connections . ForumShould i connect the case fan into the power supply or the mobo ? ForumSabertooth x58 SATA connections and fan connections ForumCase Fan Connections Help ForumSabertooth X58 Fan Connections ForumOptimal Fan Connections ForumGigabyte GA-X58A-UD3R SATA and fan connections ForumP55A-UD3 FAN CONNECTIONS ?? ForumIntel i5 3550p & AS Rock Z77 PRO 3 ForumHow do I stop my Asrock mobo from whining? ForumHELP! RAM & MOBO Forum[Solved] GA-73PVM-S2H mobo accept ddr3 ram? Forum[Solved] Will this RAM work with this Mobo? ForumASRock P67 Extreme6 & CPU Fan Control? ForumBad DIMM slot or mobo grounding on case maybe? More resources Read discussions in other Motherboards categories BIOS Boot Chipsets ASRock Asus Chaintech DFI Elitegroup FIC Foxconn Gigabyte Intel MSI-Microstar !