Pc won’t connect to monitor
I’ve had my pc for about 7 months and it worked perfectly for 6 when suddenly it wouldn’t connect to the monitor. Initially simply turning the pc on and off fixed the problem but then it stopped working. Then it would disconnect while running and then after a couple days unplugged it would work for a few days before it wouldn’t connect to the monitor. I eventually took it a tech shop and was charged $100 where they ran the pc for multiple days with maxing out my gpu and cpu and the highest temp it got was about 80-90 for both. I give them my monitor, 3 hdmi cords I used and they found no issue expect when initially booting it on, it didnt immediately connect. I’ve used 2 monitors, 3 hdmi cables, like 4 different outlets and it only works sometimes when I leave it unplugged for multiple days. Does anyone know what it could be?