Step by step for iDRAC6:
- Log in as root
- Select Remote Access from the left-hand menu
- Select the Network/Security tab
- Select the Users tab
- Click the number “2” hyperlink in the User ID column
- Select Configure User and click Next
- Select Change Password and fill out the following password fields
- Click Apply
REFERENCES
http://kb.eclipseinc.com/kb/how-do-i-change-the-drac-root-password/