Hey guys... after some of your thoughts. Ive hit some kind of wall with my CPU. I have it 100% (12hrs prime) stable at 4ghz 1.32v vcore, and it works great... but anything over that and it just wont play ball.
Even 4.1ghz wont last longer than 5 mins in prime no matter what I do. Ive tried increasing nb voltage, lossening mem timings, playing with GTL's and obviously increased vcore.

My vcore has been up to 1.42v on load so far, and even 4.1ghz still isnt stable - to me thats a hell of a jump for 100mhz extra. Ive had voltage walls before, but that is something.

VID on this chip is 1.1375v according to coretemp, which is pretty reasonable is it not? Running the latest 0214 bios. Just wondered if anyone had any thoughts on what i could try. Im pretty sure the chip should go further.