Help with fan pin locations?

[SJC Drummer]

Hi there , Ive built a rig today using an NZXT H440 , and Asus Z170E motherboard and OcUK all in one cooler. I'm having trouble setting the fans up so I can control them. The case has 3 fans on the front and one on the back which plug into a controller on the right side of the case, the cooler block is plugged into CPU_OPT, the cooling block fan is plugged into CPU_FAN , the controller has a cable saying PWM cable which ive plugged into CHA_FAN. the front 3 ones aren't spinning but the back one is. I dont seem to have control of the CPU cooler speed either?
Any help appreciate

 

[Danny75]

Hi there , Ive built a rig today using an NZXT H440 , and Asus Z170E motherboard and OcUK all in one cooler. I'm having trouble setting the fans up so I can control them. The case has 3 fans on the front and one on the back which plug into a controller on the right side of the case, the cooler block is plugged into CPU_OPT, the cooling block fan is plugged into CPU_FAN , the controller has a cable saying PWM cable which ive plugged into CHA_FAN. the front 3 ones aren't spinning but the back one is. I dont seem to have control of the CPU cooler speed either?
Any help appreciate

The case's fan controller should have a molex or sata to power it. Is that connected? If it isn't, that would explain why it's only powering one fan.

The CPU cooler's pump speed (cooler block in CPU_OPT) you should not have control over. That's normal. Only some new AIO's, apart from custom water setups, allow for pump speed variation. And it's usually best/safer to run it at 12v anyway.

Anything PWM you ideally want in a CPU_ fan header. So try plugging the cooler block's lead into a CHA_ header, leave the cooler's fan where it is (CPU_FAN), and plug the fan controller's PWM cable into CPU_OPT.

Then check that the cooler block's pump speed is running at max. It should, by default. And see how the other fans now perform.

If you cannot change the cooler's fan speed while it's connected to a CPU_header, then the fan may not be PWM. Sometimes coolers bring non_PWM fans. Can you link to the cooler on the website so we can check?

 

[Brizzles]

the controller has a cable saying PWM cable which ive plugged into CHA_FAN.

Depending on motherboard the usual 4 pin header for PWM is the CPU_Fan1 header.

Not many boards have multiple PWM headers ( despite showing 4 pins these often have a redundant pin )

That aside, they should all still spin at the least when connected direct to the mobo, just not with the PWM function

 

[SJC Drummer]

Managed to sort it out!