Hey. So I have a gaming pc, however my cpu cooler broke and i didnt have time to repair it so i didnt turn the pc on for atleast 2 months. But this week after i ordered a new cpu liquid cooler and fitted it in. After booting up the pc everything turns on fine i hear 1 beep like normally. All the fan leds turn on and spin. However nothig shows up on the screen i tried rebooting a few times but still nothing shows up. Any ideas?