As shown here [URL]#M71814 you can reset the idrac password withou a reboot and to know the existing password to modify the idrac root user.  All whats needed is a racadm installed on your ESXi. We use VUM and a propper baseline to ensure that we have install it on all of your Hosts.You can install the iDRAC Tools vIb without to reboot the ESXi but you need to place the Host into maintenance mode. Regards,Joerg
poweredge r840, idrac version 9.  can someone give me step by step instructions on resetting the idrac password back to default so we can login to create a new password? we reset the password when we first got it,  but what we have in our pw manager as the pw is just not working.
lost idrac password