[jsperson]

I’ve got a T460 with 16GB. Didn’t even know about potential ram incompatibility. Just ordered some from crucial and put it in.

[smoldesu]

AFAIK the non-s model has two DIMM slots, where the s models have only one. The "incompatibility" comes from not matching the soldered stick so you can have dual-channel memory, which is pretty hit-or-miss.