Flydrive, thanks for confirming what I assumed.
If i did use for example DSM 6.1.7 for DS916+ then would this version of DSM support my CPU and GPU?
If so, how great would it be? I know there is no further support for DS916+ but i am still using DSM 5.2-5967 Update 9 for ages now and instead of jumping to 6.2.3 i could just use 6.1.7 if it meets my needs.