To be honest I don't wanna do it the long way.
Can someone just give me suggestion of what voltage I can use with my cooler? (£30 pure rock)
Then I will try 4.7 and if that works I will try 4.8.
Ok no problem. When I get a new cpu the first thing I do is overclock it and get it running the best and coolest that it can, At the end of the day you shouldnt need to touch the overclocking again, so you might aswel spend time getting the settings bang on right, unless you need your pc for work and cant aford any downtime.
1 thing I would do is backup your windows boot drive if you can, incase widows get corrupted while your overclocking. It has happened to me many times while overclocking with a unstable cpu.