I don't know if I should just do a new post to get more attention, but I'll atleast put this up here. So the professional I took the setup so he'd take a look at it said that the problem is on the motherboard. Now when I finally received my replacement motherboard, the same issue still continues with nothing changed. I also noticed now that the fans are accelerating first, then they slow down alot and start accelerating again until they slow once again, which would make me think that the problem is on the power supply. Original post: I've done some stuff already to fix this, like remounting the GPU, remounting RAM (One by one, booted with each one alone as well) It's my first PC build, so there could be some silly goof ups, so I might have missed something important. Everything seems to be mounted nicely, had no issues with them, all fans and the hard drive disk started running on first boot, but monitor gave no response. Haven't tried the monitor on another pc, haven't tried any other hardware either. Specs: AMD Athlon 860K Gigabyte GTX 760 2GB Corsair CX500w Gigabyte GA-F2A88XM-DS2 Seagate 1TB HDD Ballistix 2x4GB RAM Kit, don't remember the accurate name. All this packed into a Versa H21, can't manage to hear the beeb sounds when booting. Using an Acer 23.8 inch 60Hz monitor, which is working normally otherwise. (Connected via a DVI-D port) Plugged in both PCI-E cords from the PSU, power on the CPU, it's cooler, the MOBO obviosly, system fans and the HD. Earlier when I was trying to boot it, the monitor found the input and it opened the BIOS, but it closed soon after to the No Singal screen again. No clue what to do now. Thanks in advance.