Question My Pc is lighting up but the monitor isn't showing any signal

[TheRomster]

My pc has been freezing recently and now my pc will turn on but won't show anything on the monitor, the pc shows light and everything seems to be working but nothing shows on the monitor. I have tried different monitors, different HDMI cables, and have moved which HDMI goes in what slot. All the cables look plugged in their components. I have also cleaned my pc, I haven't cleaned the ram sticks, However.

 

[rgd1101]

full system spec? include brand and model of the psu