Hey guys, I just upgraded one of my builds to a athlon II x4 750k (quad core) from an a6 5400k (dual core). I have checked everywhere in the bios and I cant find any core options. My motherboard that I'm using is the asrock fm2 a75 Pro4, I have 4gb of corsair value ram, and an r7 260x gpu. Thanks for the help.
EDIT* Device manager says that there is indeed 4 cores, but thats the only thing reading 4 cores.
Device Manager: http://gyazo.com/a628b58312829c278086f7d2b5017275