Windows NT 4 on Dell Inspiron 510m
After some fiddling, i got Windows NT 4 running on a Dell Inspiron 510m (similar to Dell Latitude D505), only non working things were wifi (didn't have a supported card there) and modem (useless anyways)
Laptop specs:
Intel Pentium M 735 1.7 GHz
512 MB RAM
Intel 855GME graphics (Intel Extreme Graphics 2)
40 GB HDD
1440x1050 screen