Memory placement in the W is crucial. Single DIMM in slots 3 or 4 will not be recognized at all. I 've just received a T (CTO) with 4GB RAM and the order stated 2 DIMMs. Form Factor, SODIMM (Pin). CMS 32GB (2X16GB) DDR4 MHZ Non ECC DIMM Memory Ram Upgrade Compatible with Lenovo® IdeaCentre ICK, AARR, AICB, AICK, T DIMM PC (DDR) velocidad de bus módulos RAM 4GB RAM Memory IBM-Lenovo G (2 Slots) (DDR) 4GB RAM Memory IBM-Lenovo ThinkPad T (. Speed, MHz, PC (PCS). Carefully place the DIMM into position in the DIMM slot. [HOST]: Arch Memory - Memoria RAM DDR3 So-dimm para Lenovo ThinkPad T CM (4 GB, pines): Electrónica. However I've just opened the. Memory Type, DDR3. [HOST] › videos › pddimmmemory-installation-movi. Re: T has only one DIMM slot. ECC Type, Non-ECC Unbuffered.