Hello, I'm a first time builder of a PC. When I went to install my Athlon X4 750k in my motherboard, I accidently forgot to unhook the retention arm. I gently took it back out, opened the retention arm and put it back in and locked it in place. Does anyone know if putting the cpu in with the retention arm down can harm the cpu? I don't know if it works because I don't have all of the components to do a test boot. Please help.