whete to plug in my 4th fan

michiel_31

Prominent
Jul 16, 2017
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510
I build my first pc about a week ago and everything went fine. I did notice my graphics card was getting a bit hot so i decided to buy 2 extra fans for my case. However, i can't seem to figure out where to plug in my 4th fan.

Case: NZXT S340 white
Motherboard: gigabyte z270 gaming k3
I bought 2 cooler master sickelflow's 120.

The pre-installed case fans are installed to sys_fan 1 and 2.
The first fan i bought is connected to sys_fan3 and i just don't know where the 4th one is supposed to be plugged in.
The fans came with what i believe is called a 4 pin molex connecter (male and female) where you can plug the 3 pin fan cable into but i have absolutely no idea what to do with that.
If anyone could help me that would very much appreciated.
 
Solution
According to the diagram on page 4 of the manual
http://www.gigabyte.in/Motherboard/GA-Z270-Gaming-K3-rev-10#support-manual

You should have four fan headers, one beside the 8-pin ATX_12V_2X4 power connector (SYS_FAN1), one above the 24-pin ATX power connector (SYS_FAN2) and two to the left of the RAM slots (CPU_FAN and CPU_OPT). All of these are 4-pin headers that can be used to power fans.

The 3-pin to molex connector would connect to one of the molex cables from the PSU if needed but would not have any RPM control, it would just run at max all the time.
According to the diagram on page 4 of the manual
http://www.gigabyte.in/Motherboard/GA-Z270-Gaming-K3-rev-10#support-manual

You should have four fan headers, one beside the 8-pin ATX_12V_2X4 power connector (SYS_FAN1), one above the 24-pin ATX power connector (SYS_FAN2) and two to the left of the RAM slots (CPU_FAN and CPU_OPT). All of these are 4-pin headers that can be used to power fans.

The 3-pin to molex connector would connect to one of the molex cables from the PSU if needed but would not have any RPM control, it would just run at max all the time.
 
Solution