fercent

Hi, maby somebody possible to help me with lenovo z710. Recently i change i3 4000m to i7 4710mq. Two days i7 works well, but for now, i can't load my pc. I was returning my older cpu, but with 4000m but with it, my computer didn’t even try to run. now the computer costs 4710 and sometimes it is possible to go to Bios, but usually the black screen hangs for a long time, and after trying to load OS I get a blue screen