I upgraded my sister's pc amd a4 6300 with gt 730 to amd a8 7650k with my mobo GA-f2A55m ds2,twas a fm2/fm2+ motherboard,,,and when I tried to boot it up,it only shows black screen,I tried to resets the bios and CMOS but nothing,when I try to put the a4 it boot smoothly.Am I missing something or I just need to update the motherboard bios??? or should I get a new motherboard ?? still confused on the socket fm2/fm2+ ,I triple check on the internet ,twas compatible.Maybe someone can help me find solutions