This is the x 3200 M3, so it has SAS. You can plug a SATA drive into the SAS slot. The machine is fine with it, and the drive appears in other OS. The SATA controller is the Intel PCH, which is supported, but support fails because of the above message. I know nothing about SAS, and I was surprised to see SATA connectors. Here is the PCI dump for the controller.
0000:01:00.0 SCSI storage controller: LSI Logic / Symbios Logic SAS1064E PCI-Express Fusion-MPT SAS (rev 08)
SAS controller... I've worked off and on with trying to get the SAS drives in an X3650 to work. My understanding is that SATA drives will work with a SAS controller because SATA is a subset of SAS. I have gotten to where the eCS installer's drive check utility will see a drive (though not everything that is defined in the RAID BIOS) but no partition/lvm information and it has been unsuccessful in fixing the problem when told to do so.