PC wont boot up after cpu upgrade

RobertasK

Reputable
May 1, 2015
12
0
4,510
hello there , i am new here i have a problem after upgrading my pc cpu from Pentium d 915 to core 2 duo e4600 it frezes on boot up,
PC Model :Lenovo A55-9641
What to do, update bios?how when it freezes , or replace the old one and then update? Please help
Fzgzgwu.jpg

when i press enter nothing happens.