I have purchased an HP Envy 700-074 with the intention of upgrading it, so I purchased a AMD Raedon R7 260X along with a 600W power supply unit. Upon startup, the fan for the PSU is running normally but the display on the monitor is completely black. There is no flash startup screen so I do not believe I can access the BIOS to disable the integrated graphics card, so what could this issue possibly be? Perhaps the motherboard doesn't recognize the new graphics card, so should I install the disc that came with the graphics card before attempting to install it?