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sysadmintr

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4 Posts

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October 6th, 2023 05:54

Dell PowerEdge 7625 Fan speed Problem !

Hello My Dell PowerEdge 7625 Server Fans are spinning at very high speeds. Even if I set the Fan Offsett to minimum, it spins at 70%. Although I adjusted this Fan speed according to the Operating system from the Profile settings section, there was no change. How can I ensure that my fans only reach the required height during the process and return to normal. Actually, how many rpm should the fans normally rotate on the PowerEdge 7625 server.

Thankyou for support.

sysadmintr

1 Rookie

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4 Posts

October 6th, 2023 11:19

Fan Speed Offset Off and now it's running at 30%. 

Dell-Martin S

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3.5K Posts

06-10-2023 14:07 PM

Controlling fan speed and ensuring it's appropriate for your Dell PowerEdge 7625 server is important for efficient cooling and noise management. Here are steps and information to help you address the fan speed issue:

1. **Check Default Fan Behavior:**
   Start by understanding the default behavior of the fans for your specific PowerEdge 7625 server model. The fan speeds can vary based on the server's configuration, workload, and ambient temperature. Check the server's documentation or contact Dell for the typical fan speed range.

2. **Update Firmware and Drivers:**
   Ensure that your server's firmware and drivers are up to date. Dell often releases updates that can include fan control improvements. Visit Dell's support website and download the latest firmware and driver updates for your server.

3. **Use iDRAC for Fan Control:**
   The Integrated Dell Remote Access Controller (iDRAC) is a management tool that allows for more granular control over the server, including fan speed. Access iDRAC and navigate to the appropriate section to adjust the fan speed settings.

4. **Check BIOS Settings:**
   Access the server's BIOS settings and review the fan control options. Depending on the BIOS version, you may have different options to control fan behavior. Adjust the settings accordingly to achieve the desired fan speed.

5. **Monitor System Temperatures:**
   Use monitoring tools to track the server's internal temperatures. High temperatures can cause fans to spin faster. Ensure that the server is adequately cooled and that the airflow is not obstructed.

6. **Optimize Cooling Configuration:**
   Verify that the server's internal components, such as fans and heatsinks, are properly seated and functioning correctly. Ensure that the server's cooling system is optimized for the workload and environment.

7. **Fan Speed Monitoring:**
   As for the typical fan speed, it can vary based on the specific fan model and the server's configuration. In general, fan speeds can range from a few thousand to over ten thousand RPM (rotations per minute). Dell's official documentation or technical support can provide the specific recommended fan speeds for your PowerEdge 7625 server.

Always exercise caution when adjusting fan speed settings, and ensure that the changes you make are appropriate for your server's configuration and workload.

with kind regards Martin/ Liebe Grüße Martin

DELL-Martin S

Social Media and Communities Professional

Dell Technologies | Enterprise Support Services

#IWork4Dell

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jflaplante

2 Posts

November 24th, 2023 11:23

I've been managing/installing Dell servers exclusively for almost 15 years and this is a new thing since 15G+ servers using latest BIOS.  In addition to removing the IPMI privilege's to permit manual fan control, the default controls are now on "All JET, All the time".  You can't even manage the thermal response to 3rd party hardware properly anymore and even the 'Performance Per watt' setting is super obnoxious.   Older BIOS seem a little quieter.

I stopped at 15G and probably will not be buying again until I have assurance that at least some kind of compromise is done.  I understand that some people were abusing the manual fan controls but still, the current situation has nothing to do with temperature.

The last 15G (R7525) that I purchased for a client is in a room that is 15C (59F) intake, ALL the temperatures in in the 20C range and yet, with NO disk installed, just booting the Dell image of ESXi will raise the fans to 60-66% and it will stay there forever even after install in normal operation.

This is not a problem in a datacenter but it is in most SMB.  

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