Originally Posted by KhaoticKomputing
Upping the north bridge freq and volts can help with stability. I cannot hit 4.0 without bumping up my NB freq to at least 2400. but good advice:)
bumping the CPU-NB-VID for the northbridge can indeed help stability, but it also dramatically increases TDP. With 1.55V to the cpu and stock nb-vid I hit 45C under load. With the nb vid at 1.325 I come close to 59C. All I can suggest is to watch your temperatures. but you should be anyway.
Also, if stock or poor aftermarket cooling you may actually need more voltage to be stable. A lot of people have reported a much lower voltage requirement with proper cooling. Its kind of troll on AMD's side, you get a better cooler to fix the heat problem your CPU doesn't have any more lol