Hi I'm new here and I have a big problem, I have tried everything and would like any help I can get. My Rig: Intel Core i5 2320 @ 3.4Ghz Acer Oem Motherboard 4Gb Dual Channel 1333Mhz DDR3 Ram Gainward GTX275 Golden Sample 500Gb Western Digital Blue Caviar DVD Re-writer Drive 3 Non-LED Case Fans Fractal Design Tesla 600W Psu The Graphics Card when connected wont display through my monitor and I have Re-seated 4x and checked that all connections are secure and that both 6-pin Pci-e are connected but still no display. When I plug it into my On board Graphics then the display comes on and everything works, I have tried disabling the on board Graphics through Device Manger to no avail and I cant change the primary boot in the Bios as it is Oem and wont let me. The PSU is new and has more than enough power but I will give you some details: +3.3V = 24A +5V = 24A +12v1 = 20A +12v2 = 20A +12v3 = 20A +12v4 = 20A -12v = 0.5A +5Vsb = 2.5A The Continuous output is rated at 531.5W with a peak of 600W and is 80Plus Certified So I highly doubt it is the power supply as it has more than enough but I suppose it could be faulty? and it was then how would I tell? I also should mention that I have tested the Graphics card in another system and it worked fine and when I put a low profile card into my computer it worked, so is it my Motherboard or something else? I am at a complete loss and any help would be greatly appreciated.