Connect 4 Pin Fan To 3 Pin Motherboard

4 pin connectors offer the ability to control fan speed via pulse width modulation.

Connect 4 pin fan to 3 pin motherboard.

Speed control options rpm range will vary between fans and motherboards on a 3 pin connection but the fan will spin. Please note that 4 pin fans can also be connected to your mainboard s 3 pin fan headers though. You can plug a 4 pin pwm fan connector into a 3 pin terminal on the motherboard without any problems. Two of them are for the cpu and three are for the case fans.

The fan connector will have two guides 1 and these will need to line up with the tab 2 that is on the motherboard. You can plug a 3 pin fan into a 4 pin header just fine. 2pcs 4 pin pwm fan extension cable and 4 pin ide to 3x 4 pin fan connector sleeved braided y splitter for computer pc 4 pin fan extension power cable cooling fans cable 5 0 out of 5 stars 1 3 99 3. Fancasee 4 pin pwm fan power supply cable 1 to 5 splitter 5 way pc case internal motherboard fan power extension cable cord wire for atx computer case 4 pin and 3 pin cooling fans 13 inch black 4 6 out of 5 stars 594.

As far as mounting the. Your motherboard has five 4 pin fan connectors. Pwm fans come with a 4 pin connectors for fully automatic speed control via your mainboard s 4 pin pwm fan headers. How to connect a 3 pin or 4 pin fan to the motherboard 1.

Without the fourth pin connected the fan will just run at full speed.