Lenovo Thinkpad P51/T570/T470s

[asgaard]

Hi all,

For more than 4 years I've been using T430s, and except battery life I was happy. Since like 3 weeks time I'm happy customer of T450s, but or cuz of "S" start looking for an upgrade again. I had a look on ebay and a tightened budget "for repair/parts" section, but all I found was T470s or P51s. Question here: I know that one memory slot is soldered and comes with 4GB RAM-s (T470s). I might get on with 20GB of RAM, but all really need is to add second hard disk (ssd drive). I went throught Lenovo forum and seems like you it's not recognized in WWAN port, but T480 is. P51s actually can't figure it out. T570-common problem with ssd drive can't be detected. Any advice guys?

Thanks in advance