fatsoh :
getochkn :
What CPU and motherboard are you coming from and going to.
Usually you have to reinstall as drivers are different.
You can try. If it boots your good. If it blue screens reinstall.
I am going from am AM3+ mobo to an LGA 1150 board so it is a switch from AMD to Intel
Almost certainly a full reinstall will be needed.
Find all your license keys, etc, before you do this.
Save anything important elsewhere.
All the usual things you'd do before a clean install of a whole new OS.