I doubt that changing RAM will change the CID, since RAM is nothing essential to licensing.
Production: NX10.0.3, VERICUT 8.1, FBM, MRL 3.1.4 | TcUA 10.1 MP7 Patch 0 (10.1.7.0) | TcVis 10.1
Development: VB.NET, Tcl/Tk Testing: NX12.0 Preparing: NX12.0
Employees of the customers, together we are strong
How to Get the Most from Your Signature in the Community
I've replaced ram without licensing issues.
Elmhirst Industries, Specializing in Prototype sheet metal stampings and assemblies
Production: NX 18.104.22.168 / Autoform r7 /WorkNC 2017 r2
PC: Rave Cadbeast: Intel(R) i7-4790K CPU @ 4.GHz /32gb ram /NVIDIA Quadro K2200 on Win10 Pro
The composite ID is just a combination of MAC-address and hostname.
It has nothing to do with the other hardware in the computer. just the network card.