Hello. If you got someone onsite, boot into the iDRAC configuration utility using Ctrl+E during POST and go to User Authentication to change user name and password. You may also boot into the LifeCycle Controller (LCC) using F10 key. Go to System Setup -> Advanced Hardware Configuration -> iDRAC Settings -> User Configuration to change the login credentials. Ideally, R720 comes with either iDRAC 7 Enterprise or Express
I have a r720 in a data center where the DRAC password has been lost. I want to reset the DRAC password to the default (root/calvin) so I can access it remotely and change it. Is it possible  for somebody to post the step-by-step process to reset the DRAC password to default without wiping out the IP configuration settings?  ** Also I'm not sure if this is a DRAC4/5/6/7 because the webGUI also appears to be disabled, so I need to SSH into the DRAC once the PW is reset. So please post any differences for 4/5/6/7.   Thanks,
Reset Lost DRAC Password (without resetting IP Configs)