Is the no signal caused by cpu

[okmanolos]

Hello,i stopped using my pc 4 moths before then i tried to reboot it but my monitor said no signal i didnt tuch anything in that time and i think it will be the old thermal paste that has gone old.Had anyone had the same problem?

 

[okmanolos]

Hello,i stopped using my pc 4 moths before then i tried to reboot it but my monitor said no signal i didnt tuch anything in that time and i think it will be the old thermal paste that has gone old.Had anyone had the same problem?

PLZZZZZZ HELPZZZZZZ!!!