Dell iDRAC9 v7

Dear Guys,

I have multiple servers at my data center like R740 and R350, while checking for updates, some servers shows to update the iDRAC from v6.xx to v7.xx and the strange thing that some other servers NOT showing this update. So, I downloaded iDRAC v7 manually then apply it to the servers. After v7 installed, I did a re-check for updates and it shows that I have to downgrade to v6.xx and also even from the OpenManage Enterprise.

Please advise! 

Thank you