Drop your OC back in .1 increments until you get a stable Prime95 run. You may have simply overreached with your config.
Already brought oc down to 4.5ghz and set vcore to 1.19 and set cpu pll to 1.65. Also do you think that overclocking the cpu while using the intel hd4000 graphics will cause my system to bottle neck? I only using the intergrted gpu for now.