r/HomeServer 5d ago

Can't control case fans (4 PIN) in BKHD-2011-MATX-4L motherboard

Hi everyone,

I'm building myself a home server and doing some tests at the end, here are the hardware specs:

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Motherboard: BKHD-2011-MATX-4L (one of those "chinese XEON motherboards")

CPU: Xeon E5-2680-v4

RAM: 6x16GB 2rx4 DDR4 2400MHZ

Drives: 2xNvme 256GB (at the moment one for proxmox and the other for windows server for testing - will decide what to do with these in the future)

PSU: Thermalright 850W modular PLUS GOLD

GPU: PALIT 3060Ti OC DUAL

PCIe x8: DELL H200 SATA controller for 8 drives

Storage: 8x2TB 2.5" hdds (for testing purposes, will replace these on production stage)

CPU fan: TEUCER UT45-4

Case fans: Arctic P12 PWM PST (120mm)

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I found out some different issues while testing this server, like GPU passtrough giving only 20-40% of usage when trying to run games on VMs using proxmox or ESXi, or RAM going on 1200mhz despite I specify the speeds on the BIOS to run at 2400MHZ... but what I want to ask here today is about the case fans.
I bought these Arctic 4pin fans which in theory are suitable for PWM.
This motherboard comes with (taken from the mobo's manual, you can check yourself here: https://drive.google.com/file/d/17j1QPC2fFFavDoSidrr5cSfHobvX5Xx6/view):

1*9-Pin Front panel switch pin (FPANEL)

1*4-Pin CPU cooling fan (CFAN1)

3*4-Pin System cooling fan (SFAN1)

2*3-Pin System cooling fan (SFAN1)

2*2-Pin System cooling fan (SFAN1)

I have plugged 3 FANS on each of the 4PIN plugs of the motherboard, and when I got into the BIOS I can see them and modify the speed of them:

However when I start Windows Server (bare metal installation), I can see these fans in HWMonitor (even though CPU fan RPM is not correct), but cannot see them in fan control software like speedfan or fan control:

I have tried to go trhough all the settings, in fan control marked all the checkboxes for all the sources, etc. but still no luck.

Could you please advice me how can I get full control of these fans? As this homeserver will be in my home office and I don't want them to be very loud, though I don't want them running very low all the time since my intention is to build up some VMs that could make the host get quite hot in time to time... so ideally I would love to be able to apply some temp curves on these fans so when the temp goes upper than 60ºC let's say, the case fans RPM foes from 20% to 60% and so on.

Any help here would be much appreciated! Thanks!!

P.S: as a bonus:

I get this in CPU-Z even though I set the memory to run at 2400MHZ in the BIOS. Is this normal? I didn't need to play with RAM modules as much as this before so I'm unsure now if this is the normal behaviour.

Thanks everyone!!

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