I am unable to Rollback IDAC 9 4.40.00.00 to an older 2.2x version. Is there a workaround? I tried both using the web interface and using Lifecycle controller  (F10) rollback options. 

The reason to want to downgrade is because the 4.40 does not allow fan control that makes the Dell Poweredge T640 unusable. We didn't intend to buy a jet but a small office server.