ASRock Z370M-ITX/ac - No FAN DC Mode

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   Hello,
I've recently put together a PC with the following ASRock motherboard:

ASRock Z370M-ITX/ac

Everything is working perfectly fine except for one thing, which is the ability to fan control the fan that is connected to the 4-pin Chassis Fan Connector. The motherboard has a total of two 4-pin Fan Connector's:

1 x Chassis Optional/Water Pump Fan Connector (4-pin) * The Chassis Optional/Water Pump Fan supports the water cooler fan of maximum 1.5A (18W) fan power.
This connector is known as CHA_FAN1/W_PUMP.

1 x Chassis Fan Connector (4-pin) 
This connector is known as CHA_FAN2.

This motherboard is installed in a Cooler Master Elite 130 case. Now the fans that are included with the Cooler Master Elite 130 are not PWM so I want to run them in DC mode so I can control the fan speed. The chassis fan connected to to CHA_FAN1/W_PUMP can be switched to DC mode through the motherboard BIOS. But the chassis fan connected to CHA_FAN2 cannot be switched to DC mode and because of this I cannot control the fan speed. Is this working as intended or? The following fan is connected to the CHA_FAN2 connector:

Cooler Master A12025-12CB-3EN-F1

It's always running at full speed and I want to lower the fan speed. Should I just buy a 120mm PWM fan or?

Edited by Ati_ - 18 Dec 2017 at 4:50am

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Ati_ Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 18 Dec 2017 Status: Offline Points: 3	Post Options Post Reply Quote Ati_ Report Post Thanks(0) Quote Reply Topic: ASRock Z370M-ITX/ac - No FAN DC Mode Posted: 18 Dec 2017 at 4:46am
	Hello, I've recently put together a PC with the following ASRock motherboard: ASRock Z370M-ITX/ac Everything is working perfectly fine except for one thing, which is the ability to fan control the fan that is connected to the 4-pin Chassis Fan Connector. The motherboard has a total of two 4-pin Fan Connector's: 1 x Chassis Optional/Water Pump Fan Connector (4-pin) * The Chassis Optional/Water Pump Fan supports the water cooler fan of maximum 1.5A (18W) fan power. This connector is known as CHA_FAN1/W_PUMP. 1 x Chassis Fan Connector (4-pin) This connector is known as CHA_FAN2. This motherboard is installed in a Cooler Master Elite 130 case. Now the fans that are included with the Cooler Master Elite 130 are not PWM so I want to run them in DC mode so I can control the fan speed. The chassis fan connected to to CHA_FAN1/W_PUMP can be switched to DC mode through the motherboard BIOS. But the chassis fan connected to CHA_FAN2 cannot be switched to DC mode and because of this I cannot control the fan speed. Is this working as intended or? The following fan is connected to the CHA_FAN2 connector: Cooler Master A12025-12CB-3EN-F1 It's always running at full speed and I want to lower the fan speed. Should I just buy a 120mm PWM fan or? Edited by Ati_ - 18 Dec 2017 at 4:50am