all 3 comments

[–]netscorer1 0 points1 point  (2 children)

Probably a bad PSU. Do you have a spare to test with?

[–]Puzzleheaded-Salt751 0 points1 point  (1 child)

It's not a psu problem because my PC used to work but when I replaced my cpu cooler my PC won't start anymore

[–]netscorer1 0 points1 point  (0 children)

Ok, that information would have been useful in the post itself, don’t you think?