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‎11-20-2024 06:50 AM - edited ‎11-20-2024 06:51 AM

HP Recommended
Product: OMEN 25L Desktop - GT12-0000nx
Operating System: Microsoft Windows 11

I have changed my pc -hp omen 25l desktop GT12-0000nx- case and add new fans, it shows in bios but i can't control it and it runs at full speed and its really annoying. The bios shows (cpu fan at 1500 rpm and system fans at 2500 rpm). I can control the cpu fan from omen gaming hub but the other 6 are very loud and annoying.

I plugged the new fans at chfan socket in the motherboard.

I have tried different apps to control the fans but the apps doesn't detect the fans.

I have 4 fans that are connected to splitter and those are connected at chfan, and there are 2 more that are connected to each other and connected to chfan2. 

Hope you could help me!!

1 REPLY 1

‎11-22-2024 09:52 AM

HP Recommended

Hi @Anas_mo 

 

Welcome to the HP support community. It sounds like you're dealing with an issue where your newly added system fans are running at full speed and you're unable to control their speeds, despite the BIOS detecting them. This can be frustrating, especially if the fans are loud and you're looking to reduce the noise. Here’s a step-by-step guide to help you address this issue:

1. Check BIOS Fan Control Settings

  • Enter BIOS: Restart your PC and press the appropriate key (usually F10, DEL, or ESC) to enter the BIOS setup.
  • Check for Fan Settings: Look for any fan control settings under Advanced, Hardware Monitor, or Power settings.
  • Adjust Fan Profiles: Some motherboards offer fan profiles (like Quiet, Standard, or Performance). Try switching to a Quiet or Standard profile if available.
  • Custom Fan Curves: If your BIOS supports custom fan curves, you should be able to set the fan speeds based on temperature.

2. Check Fan and Splitter Configuration

  • Verify Power Requirements: Ensure that your fan splitter isn't drawing more power than the motherboard fan headers can supply. If you're connecting too many fans to a single header, you might face issues with controlling them properly.
  • Check Fan Headers: Make sure the fans are plugged into the correct headers. Some systems have CPU_FAN, CHA_FAN, and SYS_FAN headers, each serving a different function. Ensure the fans are connected to CHA_FAN (for system fans) or SYS_FAN.

3. Use OMEN Gaming Hub to Control Fans

  • Update OMEN Gaming Hub: Open the OMEN Gaming Hub and check for updates. Sometimes, fan control functionality improves with newer versions of the software.
  • Configure Fan Control in OMEN Gaming Hub: In the OMEN Gaming Hub, go to the System or Thermals section. It may allow you to adjust the system fans' speed or set fan curves.
    • If the OMEN Gaming Hub doesn't detect your system fans, it could be a compatibility issue with the fan splitter or motherboard.

4. Install or Update Fan Control Software

If the OMEN Gaming Hub and BIOS settings aren't offering enough control, you may need third-party fan control software. Popular programs like MSI Afterburner or SpeedFan can sometimes provide more granular control over system fans.

SpeedFan: Download and install SpeedFan (from here) to try and control the fan speeds. SpeedFan works with most motherboards and can control both CPU and system fans.

  • Open SpeedFan and check if it detects the fans.
  • You may need to manually configure fan profiles for the system fans.

MSI Afterburner: Even though it's primarily designed for GPU fan control, MSI Afterburner can also work with system fans, depending on the motherboard.

5. Check for Fan Firmware or Driver Updates

  • Visit your motherboard manufacturer's website and check if there are any firmware or driver updates for your fan control system.
  • Sometimes, fan control improvements are included in BIOS updates or specific fan controller drivers.

6. Try Using a Fan Controller

  • Fan Controller: A dedicated fan controller (such as one with knobs or a digital interface) can give you complete control over your fans without relying on software.

I hope this helps! Keep me posted.

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution.
 

-Regards
Raj-HP Support

Raj2111
I am an HP Employee

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