Admin Password Resr

Hello

I have a Dell Poweredge T130. I setup the server and set the admin password. This server replaced a older poweredge. I set the password on the new server the same as the password on the old server. I went to check my backups last week and can not login into the new server. I am 99 percent sure i am using the correct password. I was 100 percent sure, but after trying for a hour, Im at a loss. I booted from the server 2016 cd to change the password. When i open a command prompt, I can not change the drive to D. The server is running a Raid 0 config. I have figured out that i need to load the raid driver. The server has a S130 Raid controller. I can not figure out how to load the Raid drivers. I have booted from a Hirens boot cd, but of course i don't have the Raid drivers.  Can somebody please help

Thank you