Gaming-ITX/ac fan control not working

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   All three are 3 pin connectors. Its so weird.. why would they even do this? I had to move my radiator fans to CPU_FAN and CHA_FAN1 and move my pump head connecter to the CHA_FAN2 (which doesnt control and runs at max always).

The problem is configuring fan profiles in BIOS. Since CPU_FAN1  responds to ? (CPU temp presumably) and the CHA_FAN1 can be configured for either motherboard or CPU. But when I set simialar fan profile settings, the CPU_FAN1 is always running at a lower speed than the CHA_FAN1 (no matter if I make it respond to motherboard or CPU temp).

It as pretty frustrating, eventually gave up and decided to use SpeedFan.

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x6phenom Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 27 Jan 2016 Status: Offline Points: 38	Post Options Post Reply Quote x6phenom Report Post Thanks(0) Quote Reply Topic: Gaming-ITX/ac fan control not working Posted: 03 Feb 2016 at 3:38am
	All three are 3 pin connectors. Its so weird.. why would they even do this? I had to move my radiator fans to CPU_FAN and CHA_FAN1 and move my pump head connecter to the CHA_FAN2 (which doesnt control and runs at max always). The problem is configuring fan profiles in BIOS. Since CPU_FAN1 responds to ? (CPU temp presumably) and the CHA_FAN1 can be configured for either motherboard or CPU. But when I set simialar fan profile settings, the CPU_FAN1 is always running at a lower speed than the CHA_FAN1 (no matter if I make it respond to motherboard or CPU temp). It as pretty frustrating, eventually gave up and decided to use SpeedFan.

tmorris Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 03 Feb 2016 Status: Offline Points: 2	Post Options Post Reply Quote tmorris Report Post Thanks(1) Quote Reply Posted: 03 Feb 2016 at 1:35am
	I ran into the same issue. Are you using 3-pin or 4-pin (PWM) fans. I found that the CHA_FAN2 pin ran at full speed for voltage but worked if using a PWM fan. Then I found this in the on-line specifications: "CPU_FAN1 and CHA_FAN1 can auto detect if 3-pin or 4-pin fan is in use." I think the first two can do both but the third can only control a PWM fan.

x6phenom Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 27 Jan 2016 Status: Offline Points: 38	Post Options Post Reply Quote x6phenom Report Post Thanks(0) Quote Reply Posted: 02 Feb 2016 at 11:03pm
	Updated from BIOS 1.7 to 1.8 SYS / CHA_FAN2: control still not working

x6phenom Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 27 Jan 2016 Status: Offline Points: 38	Post Options Post Reply Quote x6phenom Report Post Thanks(0) Quote Reply Posted: 02 Feb 2016 at 10:05pm
	Hello, I have three fans: SYS CPU AUX I am able to control CPU and AUX, but not SYS. Is this intended or a fault in the motherboard? I opened my chassis to see which header corresponds to which signal: CPU_FAN1 = CPU (can control) CHA_FAN1 = AUX (can control) CHA_FAN2 = SYS (control not working) What should I do? Is this a BIOS or HW fault? I used both SpeedFan and F-Stream to test.