Well, I figure it out, if this answer can help anyone who might have this problemI installed the 12 GB SAS HBA card on PCIe slot 3 (Riser), but my server only had one processor. To get working the slots 1-2-3 the server MUST have TWO processors. Thats why the server did not recognize that SAS card.The solution is pretty simple, if you just want to connect a Dell 12 GB SAS HBA Card on a One Processor Server, connect it into the slots 5 or 6, and that is it. Windows now recognizes this card.Hope this helps anyone
HelloI have the DELL Server OEM R730XD (I got this from the Service Tag), I need to connect this server with a PowerVault TL2000. Unfortunately, this server is from Avigilon and it does not have any port to connect it, so I bought a Dell 12 Gbps SAS HBA card, this cards work very well on other server R730, just connect it and it works.  But when I connect this card to OEM R730XD, the OS does not recognize it, when I connect the PowerVault and this server through a cable, the port led status is always off.I checked the compability of cards and this SAS HBA card is compatible with both servers. I entered to the DELL LifeCycle and under the Hardware List Tab, I can see the SAS card and its status is OK.Also I have tried to install the drivers (from the Service Tag), but it says : "ERROR, The package cannot be installed under current system configuration"Is there any configuration I am missing on the BIOS, LifeCycle or OS?PD. The OS is Windows Server 2012 R2 
DELL OEM R730XD and 12 gbps SAS HBA Card