3 Replies Latest reply on Dec 30, 2011 5:29 AM by Constellation

    Very Noisy Fans (Chasis SC5650DP, Board S5500BC)

      I have been struggling for the last 2 weeks to deal with this problem. I could find no way to get rid of the noise generated by fans. I would be really grateful for any ideas, suggestions.

        • 1. Re: Very Noisy Fans (Chasis SC5650DP, Board S5500BC)

          Hi there,


          First of all before doing any update:


          When the fan are spinning too loud, it can be due to:
          1. Wrong system fans are connected on the board.
          2. Incompatible chassis and wrongly configured SDR.
          3. Compatible chassis with a wrongly configured SDR
          4. Bios Settings wrongly configured.


          I will personally try to check if the chassis is on the compatibility list (which it is) and the system fan headers are correctly connected


          I have attached a picture from the Quick Start Guide for the fan headers connections, check them before updating the firmware.


          (B, C, D fans need to be connected appropriately)


          Then update the following:

          The recommended upgrade method, if not updating a hot-swap controller (HSC), is:
          Reboot, and verify BIOS settings


          Download the latest firmware Package and Update them thru the EFI Shell.

          Extract all the contents of the zip files to a fat formatted USB

          Follow the instructions how to proceed from the above video link.

          Once this is done, you can reupdate the firmware for FRUSDR as there is a latest one on the download page. Use the same method EFI Shell.


          After the update of these firmware, i will go onto the bios and Advanced, System Acoustic and Performance Configuration, Throttling Mode set to Open Loop, Set fan profile as Acoustic and Altitude set 300 or less. (I dont know for sure if these exists in the new server board bios.)


          Other than this, next steps will be to verify the sel log and verify the release notes of the firmware if there is anything



          Hope these are useful,




          • 2. Re: Very Noisy Fans (Chasis SC5650DP, Board S5500BC)

            Attaching the picture..



            • 3. Re: Very Noisy Fans (Chasis SC5650DP, Board S5500BC)

              Hi there


              I did update the BIOS in EFI Shell


              But Still the same problem checked again if cable are right in possition.


              When the update is during the fan go back to normal after that it says changes affect after reboot. But after the reboot the the fans still run full speed.


              What else can you recommend to do.



              best regards.