Just like an HP server, you can either install directly from the Windows media or use the installation utility (Dell's is called OpenManage Systems Management Tools and Documentation (SMTD) or Systems Build and Update Utility (SBUU)) ... or use the onboard Universal Server Configurator (USC). Depending on your RAID controller, 2012 may already have the drivers for the RAID controller built-in, but most of the PERC's do NOT support non-RAID, so you will need to configure your disks into a RAID array(s) first.
Hi, I have been installing and configuring HP servers only before and now I have my first Dell server ever (T620) in my hands. I need to get it running. Can someone quickly tell me what are the steps to install and configure Dell server with all the needed software and drivers. I need to get Windows Server 2012 installed and configured as Hyper-V host. 
Installing first Dell server