Lenovo PROCESSORS
43C2056
is compatible in the following Models:
Lenovo ThinkCentre A Series desktops
ThinkCentre A57 - 9704CTO
Lenovo ThinkCentre M Series desktops
ThinkCentre M57 - 6072CTO
ThinkCentre M55 - 8810DB1
Other Lenovo Models
A57 Desktop (ThinkCentre) - 9708CTO - 9708CTO (9708-CTO) - 9708CTO