Ciao
Looking at this link it doesn't seem to me that it can be supported.
https://static.lenovo.com/us/en/serverproven/nos/vmwareold.shtml
The latest version appears to be ESXi 5.5.
What you can try to do is an install and see if it gives you errors.
From my point of view I would never put into production a server with a version of ESXi that is not certified by either the vendor or VMware for compatibility.
If, on the other hand, we are talking about a Test or laboratory environment, I would try to install 7 or 6.7 or 6.5