Hi [NAME]-Spinelli,   Unfortunately, for R930, the TPM is embedded on the mainboard, which only can be ordered before the server is shipped. Hence, you probably need to replace the mainboard. 
Hello, I have a case where I needed to add TPMs to two R930s that didn't have them installed previously.  However, there doesn't seem to be much documentation on where the connector for them are on the main board.  Has anyone had experience with installing TPMs on these servers before?  I've done so on other 13G servers but the connector is pretty well hidden on the R930.  Thank you
TPM location on PowerEdge R930