I'm having trouble installing Windows NT 4.0 on a E7505 motherboard (X5DA8, X5DAE, X5DAL-G, X5DAL-TG2), is there any trick?
For Windows NT 4.0 you must enable the NT4 workaround inside the BIOS setup for installation and you must permanently change the MPS version inside the BIOS setup from 1.4 to 1.1.