Z370m-itx/ac - PWM not working

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   I have 2x Arctic F8 PWM fans connected to a splitter which connects to CHA_FAN1. I try to make adjustments in bios but the fans spin full speed when set to PWM. In DC mode, I have to set it to Standard but it just stays at a static rpm...Performance mode or SIlent modes do not work. 
Can this be fixed with a future bios update?

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openupitsdave Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 01 Jun 2016 Status: Offline Points: 11	Post Options Post Reply Quote openupitsdave Report Post Thanks(0) Quote Reply Topic: Z370m-itx/ac - PWM not working Posted: 19 Mar 2018 at 7:44am
	I have 2x Arctic F8 PWM fans connected to a splitter which connects to CHA_FAN1. I try to make adjustments in bios but the fans spin full speed when set to PWM. In DC mode, I have to set it to Standard but it just stays at a static rpm...Performance mode or SIlent modes do not work. Can this be fixed with a future bios update?

wardog Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 15 Jul 2015 Status: Offline Points: 6447	Post Options Post Reply Quote wardog Report Post Thanks(0) Quote Reply Posted: 19 Mar 2018 at 8:01am
	I'm of the understanding No. And the splitter is the reason. Not that a signal cannot be "sent' UP the splitter to the fans, but that the IC responsible does NOT like seeing BOTH fans signal come back.