Just to clear up a couple of things.
I started it again and it seems there is one beep. So far i think the motherboard is fine. Also, i both bench tested it and case tested it, both no go.
And i think i have made a breakthrough, I somehow acquired a completely different PC and tried it, and its still not showing. So that makes me believe that the problem IS related to the monitor, even though when i connect it to my Laptop, it works fine. It seems to be a really old LCD Monitor, Samsung SyncMaster 172N. Can having old monitor drivers cause this problem?