Martin Steigerwald wrote: > Hello, > > I have a spare 128 MB SDRAM from my IBM ThinkPad T23 that a user with a > Thinkpad T21 could put to good use. > > Would this SDRAM from the T23 work in a T21? > > Regards, One way to find out, is to go to the IBM or Lenovo site or to a memory supplier, such as Kingston, to verify part numbers..