Reinstall OS after same CPU install

Sammyxxy

Honorable
Feb 6, 2014
4
0
10,510
I want to install a new CPU on my old mobo, the CPU is the same as the previous one on it. Will I have to reinstall my OS? thanks for any answers, specs below.

Mobo: ASROCK 760GM-GS3
GPU: GTX 570 Point of View
CPU: AMD Athlon xII 250 (Old and new one)
I think thats the only important ones atm