Hi,
sorry for my bad english (i'm french)
i just buy an X14 ... with SSD installed into
it work fine
but , when i stop it , and i reboot it , at the end of the starting proces , it freeze (just after a little "click" and before show the DB menu)
i have to put the power button on off 
waiting 30 secs , it reboot normally
i try 1 hdd+1 ssd : same problem !!! . i change the os (ext4 & ntfs) : idem
some ideas ?
best regards
YB