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Control 3 pins fan with BIOS

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Guysmo View Drop Down
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    Posted: 04 Sep 2017 at 12:07am
Hi,

I bought an ASROCK B250 PRO4 and I'm trying to control all fans, they all have 3 pins.
In BIOS, I found the menu to set silent or full speed mode but in any cases, fan speed doesn't change !
If it's not possible with BIOS, which software can do that ? (speedfan doesn't work)

Thank you for your time.
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ASRock_TSD View Drop Down
ASRock_Official
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ASRock_TSD Quote  Post ReplyReply Direct Link To This Post Posted: 08 Sep 2017 at 5:47pm

Dear Guysmo,

 

Thank you for choosing ASRock.

 

Regarding your case, B250 Pro4 has 3 chassis fan, chassis fan2 and chassis fan3 can support 3-pin fan.

Chassis fan 2 can auto detect if 3-pin or 4-pin fan is in use.

Chassis fan 3 have to set to DC mode in BIOS, after setting to DC mode, 3 pin fan speed can be controlled.

http://www.asrock.com/mb/Intel/B250%20Pro4/index.asp#Specification

 

Thank you!

Yours truly,

ASRock TSD

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Guysmo View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Guysmo Quote  Post ReplyReply Direct Link To This Post Posted: 08 Sep 2017 at 8:11pm
I didn't know it's possible to switch to DC mode.
I will try it.

Thanks :)
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