Mine is a Latitude D830, with a T7500. ...
Inspiron 1525's: found 1 at the curbside trash, no drive, no battery no charger.
The other was given to me when it wasn't being used anymore.
Both now have 120GB Samsung 840 EVO's & upgraded wifi cards, dual-band N to replace single-band G, 300MHz instead of 100Mhz wired.