Originally Posted by Benjiw
How do people get their 8350's to 5ghz? I'm really struggling to get 4.9 stable in IBT and it's driving me insane, I cant put anymore volts into the CPU they're already at 1.648v with temps hitting 68c and thats at 4.8 atm?
Originally Posted by Alastair
It also depends on your motherboard. As I see you have a UD5 which should not be a limiting factor. HOWEVER your cooling is. You stand almost NO CHANCE of getting an FX-8350 stable at 4.9GHz with a dual tower air cooler. The chips are just to hot. Coolers like the Phantec's you have top out at 4.7GHz or at whatever clockspeed you can reach with 1.5V. You need a 240mm CLC AT LEAST in order to get an FX octo stable at 5GHz. Sorry bro. Settle for 4.8GHz and leave it at that.
^this, heat = resistance, resistance = more volts needed to push for higher clocks = more heat,
So in short you hit a limit that you are just getting too hot that there is too much resistance caused by heat that is not getting dissipated, which in turn cause the instability
Originally Posted by Undervolter
Not all chips are the same. Some chips simply can't do it. Some stop at 4.7-4.8 no matter how much voltage you give. It's the silicon lottery.
Although this is true very few are actually that bad we had this discussion a couple pages back
Originally Posted by alanQtrmaine
Undervolter said it well. Also if you'd like some opinions it helps to put up screens of you bios settings. These are tricky chips. That's a lot of volts your pushing. The new 8370e seem to have good results tho.
Alastair said it the best, yes if we say some screen shots as well as temp reading including core we could help.. but plain and simple, for the cooling, thats about the best thats going to be