I have a Dell D600 work laptop with a lot of elevator specific diagnostic software. I have moved my hard drive from 1 d600 to another identical d600 without any issue. I want to purchase a used dell d630 due to the core 2 Duo processor and expanded ram capabilities. Is windows XP smart enough to see the differance between d600 and d630? I know I will have to load hardware specific drivers for D630.