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Old 11th August 2017, 11:50 AM   #1
mixsetup Thread Starter
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Question BIOS does not detect fans

Hi there I have a 990fx extreme9.
In the BIOS it shows the CPU fan which my water cooling pump is connected to.
All other fans are not being detected.
As a result the AXTU software that came with the board does not detect them either
Other software such as AIDA64 and HWMONITOR don't detect them either.
Other fans are radiator fans connected to a hub which is connected to the Chassis Fan header.

Antec Spot Cool 100 to cool VRM is connected to the power fan connector(which is not listed on the AXTU software).

Any idea why the BIOS does not detect the other fans?
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Old 11th August 2017, 12:11 PM   #2
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have you tried eliminating the hub, and direct mounting the fan to the motherboard
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Old 11th August 2017, 12:21 PM   #3
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Are teh headers in the hw monitor page set to disable or ignore?
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Old 11th August 2017, 1:55 PM   #4
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The 3 on the radiator which are connected to the HUB are PWM and show up in software for me to control.

CPU which my pump is connected to shows up in Bios thats fine.
Other spot cool connected to power fan is not showing in software or BIOS.

In the Bios under HW monitor it has the list of fan headers.

It says CPU for the pump 4500
the rest it says N/A for all of them.
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Old 11th August 2017, 2:19 PM   #5
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Quote:
Originally Posted by mixsetup View Post
The 3 on the radiator which are connected to the HUB are PWM and show up in software for me to control.

CPU which my pump is connected to shows up in Bios thats fine.
Other spot cool connected to power fan is not showing in software or BIOS.

In the Bios under HW monitor it has the list of fan headers.

It says CPU for the pump 4500
the rest it says N/A for all of them.
The spot cooler might not be pwn ie 4pin hence not show up in bios
The bio prob won't not show fans in a fan hub

Hence asking have you tried the fan connected individually connected to motherboard
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Old 11th August 2017, 6:02 PM   #6
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Quote:
Originally Posted by mixsetup View Post
The 3 on the radiator which are connected to the HUB are PWM and show up in software for me to control.

CPU which my pump is connected to shows up in Bios thats fine.
Other spot cool connected to power fan is not showing in software or BIOS.

In the Bios under HW monitor it has the list of fan headers.

It says CPU for the pump 4500
the rest it says N/A for all of them.
can you select n/a and see if that might be the option for it to be disabled? Usually it should say 0RPM, but if it's saying n/a it might be disabled.

Also some boards don't detect low RPM well, disable fan control on those headers and restart.
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Old 12th August 2017, 6:11 AM   #7
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Quote:
Originally Posted by ipv6ready View Post
The spot cooler might not be pwn ie 4pin hence not show up in bios
The bio prob won't not show fans in a fan hub

Hence asking have you tried the fan connected individually connected to motherboard
I agree with this - try connecting fans direct to the mobo and then review in BIOS.
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Old 12th August 2017, 3:30 PM   #8
mixsetup Thread Starter
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Hi so in the BIOS I can select auto,full or manual for each fan but not the power fan.

I changed and tried each option and nothing came up but it did let me control them with software within Windows and thats what I needed.

Thank you for your help.

Oh tried plugging fans in to motherboard and one came up so it doesn't like the hub.
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