|In a word, no. As I stated your original license is keyed to the original motherboard. The brand doesn't matter. Sometimes a replacement board that is a close enough match to the original will slip past. Obviously that isn't happening in your case.|
Did you buy more than just the motherboard? Like a newer processor (CPU) and memory?
If so, post the model of the motherboard and I may b able to determine if it will run Windows 7. Usually the basic hardware is not the problem when upgrading to 7. The issue is drivers for older hardware like printers, scanners, game gear, etc. Also, some software that works on Windows XP may not function correctly under Windows 7. That can sometimes be overcome by running it in a compatibility mode. Same for hardware.