[jbk]

> I hope the MB supports 16GB and Dell does not solder the RAM to the motherboard.

On 13", all the RAMs are soldered on the boards.

[MichaelGG]

12" ThinkPads like the X201 are not soldered on. Dunno about later models since the X201 was already part way down the lack of good engineering.

[jbk]

As far as I know, all x220 and later are.