Pc wont start after laodshedding /Warzone advice to see other players

[Jj1121]

Hi guys pc will come on fans running everything but won't boot not even doing post, sometimes we'll over a hour before I get it to start any idieas? I haven't played in a long time! I started again and I am not seeing the other players hahaha they are there but everything blends in perfectly I will walk pass a player,

How or what can I change to make players a bit more visible on the screen? I am running on HD medium to high