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Control 3 pins fan with BIOS |
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Guysmo 
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Joined: 04 Sep 2017 Status: Offline Points: 4 |
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 Topic: Control 3 pins fan with BIOSPosted: 04 Sep 2017 at 12:07am |
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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
ASRock_Official 
Joined: 20 Mar 2015 Status: Offline Points: 8907 |
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Posted: 08 Sep 2017 at 5:47pm |
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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
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Joined: 04 Sep 2017 Status: Offline Points: 4 |
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Posted: 08 Sep 2017 at 8:11pm |
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I didn't know it's possible to switch to DC mode.
I will try it. Thanks :)
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