Z370 Fatality Gaming K6 Fan control

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   Hi, i got a strange problem with Fan Control Setting, im on bios 3.20 but do happen on previous bios too.

My Fan setup

1x cpu fan (4pin)

3x case fan (3pin)
.........................

the problem is on chassis 3 header fan control, if i set all 3fan on chassis fan spot, always the LAST ONE CHA FAN 3(pin header 3)have full rpm and no control, even if i interchange fan with pin header the final result in 2x fan control speed control and last one full speed.

i have fixed this using the third chassis fan on cpu optional header and set it to low voltage 7v to avoid full speed, but i have of course no control about it.

so my question is...why the first CHA FAN 1-2 with 3pin give me full control and ONLY if i add the third fan on CHA FAN 3 i got the problem.

bug hardware or bios?

isn't a fan problem, i have tried all fan on both cha fan 1-2 and work good.

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amon.akira Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 31 Jan 2016 Status: Offline Points: 78	Post Options Post Reply Quote amon.akira Report Post Thanks(0) Quote Reply Topic: Z370 Fatality Gaming K6 Fan control Posted: 07 Jan 2019 at 5:28am
	Hi, i got a strange problem with Fan Control Setting, im on bios 3.20 but do happen on previous bios too. My Fan setup 1x cpu fan (4pin) 3x case fan (3pin) ......................... the problem is on chassis 3 header fan control, if i set all 3fan on chassis fan spot, always the LAST ONE CHA FAN 3(pin header 3)have full rpm and no control, even if i interchange fan with pin header the final result in 2x fan control speed control and last one full speed. i have fixed this using the third chassis fan on cpu optional header and set it to low voltage 7v to avoid full speed, but i have of course no control about it. so my question is...why the first CHA FAN 1-2 with 3pin give me full control and ONLY if i add the third fan on CHA FAN 3 i got the problem. bug hardware or bios? isn't a fan problem, i have tried all fan on both cha fan 1-2 and work good.

ASRock_TSD Members Profile Send Private Message Find Members Posts Add to Buddy List ASRock_Official Joined: 20 Mar 2015 Status: Offline Points: 8532	Post Options Post Reply Quote ASRock_TSD Report Post Thanks(0) Quote Reply Posted: 08 Jan 2019 at 10:03am
	Dear Amon.akira, Thank you for choosing ASRock. Regarding your question, the chassis fan 1 and chassis fan 2 can auto detect if 3-pin of 4-pin fan is in use. If you want to use the 3-pin fan on chassis fan 3, please set the fan control mode manually to DC mode under BIOS. Thank you! Yours truly, ASRock TSD Edited by ASRock_TSD - 08 Jan 2019 at 10:03am

amon.akira Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 31 Jan 2016 Status: Offline Points: 78	Post Options Post Reply Quote amon.akira Report Post Thanks(0) Quote Reply Posted: 08 Jan 2019 at 9:19pm
	Thanks alot, i don't see this option on chassin fan 3 before...strange because i used DC Mode on cpu optional, however now is fine, i have full control speed so thanks for help ^^