is that core temps? or socket temp? max core temp is 61.1°C, max socket temp is 70°C.
http://www.tomshardware.com/forum/id-1727374/official-8350-temps.html
Are you overclocking through bios or software? It shouldnt matter if you do multiplier or bus OC, the cpu will get just as hot. With bus oc your heating up components on the motherboard to add to the heat. To be honest, if you have 8 cores at 4.8ghz, thats pretty good for a 24/7 stable machine. You wont see too much real world increase from another 200mhz. What are you trying to achieve specifically? performance in a particular game/app? or just the feat of hitting 5ghz?