• ×
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.
    Windows 11 Support Center.
  • post a message
  • ×
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.
    Windows 11 Support Center.
  • post a message
Guidelines
Are you having HotKey issues? Click here for tips and tricks.
Locked

‎05-03-2023 04:46 AM

HP Recommended
Product: HP Z420 Workstation
Operating System: Other

good morning,

 

The Context:

1. I have installed 8 SAS drives into my HP Z420 into the 5.25 bay

2. I have installed a noctua fan in front of the drives and connected it to the FRNTFAN on the motherboard

3. OS: FreeBSD 13.2

 

The Problem: I would like to learn how I can control the said fan speed ( Internal Reference Designator: P9 FRNTFAN )

 

Note: sysctl -a | hw.acpi command does not show any thermal/fan related properties as it is on HP laptops.

Category:
1 ACCEPTED SOLUTION

Accepted Solutions

‎05-05-2023 05:46 PM - edited ‎05-05-2023 05:56 PM

HP Recommended

Hi Dmitry,

 

It is not possible to control the individual fan speeds on the Z420 motherboard. The only available setting in the BIOS is to control the system fans idle speed. Rather than powering your fan from the motherboard, I would recommend tapping power from the spare molex connector in the Z420 and using a simple dedicated fan speed controller such as this . . . (ebay)

 

Fan controller.JPG

HP Z620 - Liquid Cooled E5-1680v2 @4.7GHz / 64GB Hynix PC3-14900R 1866MHz / GTX1080Ti FE 11GB / Quadro P2000 5GB / Samsung 256GB PCIe M.2 256GB AHCI / Passmark 9.0 Rating = 7147 / CPU 17461 / 2D 1019 / 3D 14464 / Mem 3153 / Disk 15451 / Single Threaded 2551

View solution in original post

2 people found this reply helpful
Was this reply helpful? Yes No
1 REPLY 1

‎05-05-2023 05:46 PM - edited ‎05-05-2023 05:56 PM

HP Recommended

Hi Dmitry,

 

It is not possible to control the individual fan speeds on the Z420 motherboard. The only available setting in the BIOS is to control the system fans idle speed. Rather than powering your fan from the motherboard, I would recommend tapping power from the spare molex connector in the Z420 and using a simple dedicated fan speed controller such as this . . . (ebay)

 

Fan controller.JPG

HP Z620 - Liquid Cooled E5-1680v2 @4.7GHz / 64GB Hynix PC3-14900R 1866MHz / GTX1080Ti FE 11GB / Quadro P2000 5GB / Samsung 256GB PCIe M.2 256GB AHCI / Passmark 9.0 Rating = 7147 / CPU 17461 / 2D 1019 / 3D 14464 / Mem 3153 / Disk 15451 / Single Threaded 2551
2 people found this reply helpful
Was this reply helpful? Yes No
Warning
Be alert for scammers posting fake support phone numbers and/or email addresses on the community.
If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation.
Didn't find what you were looking for? Ask the community
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.