W3670 is not a supported processor for T610. Below are list of supported processor for T610 Number Part Description  
Am I limited to certain cpu's to upgrade to? I know they would have to fit the socket type (LGA1366), but any other stipulations? It currently has a  Xeon E5620. I ordered 2 Xeon W3670 and was curious if these would work.  
Dell poweredge t610 cpu upgrade