Hi I'm trying to install a new sapphire RX 580 Graphics card into my old HP P7-1241 with AMD Quad Core A10-5700 integrated Graphics. Also installed new 600w psu. PSU working fine but the RX 580 is showing no signal when I take it out the integrated graphics work fine again. Not sure what to do next. I did go to bios and check to make sure the pci-e is enanbled but haven't tried to put it back in yet. Hoping to get some information first.