Hello Thanks for reading and I know this problem has been on here one too many times but im just very curious as to asking these certain questions before progressing onto what I think I should do. My problem is that I recently bought a 7870 HIS IceQ mainly for the cooling system it comes with. Now I had installed it (carefully no static shocks nothing like that) into my PC. Now when I boot it up I get no signal and my keyboard and mouse are getting NO power at all. Now the curious part.. my pc came with a HD 7670. Thats it. No VGA output on my motherboard.Which makes me think..do I need to change something in BIOS? Does my PC only detect that 7670 because it came with it? And yes I plugged in the PCIe power connecters too. Now to what I think I should do based on reading through the forums.. Cmos Reset New PSU And thats basically it Here is a detailed Spec list. Name: HPE Phoenix HD 7670 1gb DDR5 AMD FX 8120 3.1Ghz 4x2 Ram DDR3 ThermalTake TR2 700w PSU Motherboard is a Gigabyte 2AC8 model BIOS is AMI Ang_717 4/13/2012 2TB hardrive ANY help is very much appreciated. Ive been on this problem for a while now . Thanks!