Quote Originally Posted by Pekalion View Post
Hi Im back and with really good news. Seems like having troubles only when I leave the voltage settings to auto, but when I pick them manually, no problems OCing Right now I have set like this for a 4.0Ghz but is not stable, I ran Prime with his last version and it throw me error after 5 minutes.

CPU V: +0.125
DDR V: +0.150
Chip V: +0.125
FSB V: +0.100
GTL 1: 0.63
GTL 2: 0.63
MCH: Auto
PLL: 1.6V

And the configuration was like this:
Ratio: x9.5
Count Retry: 3
FSB: 420
FSB Bsel: 1333
DRAM Freq: DDR2 1008Mhz
DDR2 Enhance: Auto

I havent touch any other settings atm, but I figure that I will increase some of chipset and fsb voltage and drop a little bit the multiplier and take up the FSB parameter.

If you have a good, not excesive config to reach a rock solid 4.0ghz 24/7 im all ears :P
Try leaving FSB voltage on Auto, that seems to work for me since I haven't had time to play with it and see what my OC's actually take. It's probably delivering more than is necessary; I'll work on reducing it one of these days.

You shouldn't need any extra PLL voltage at that OC, even with a C0 chip. Could be Vcore. My old E8500 C0 took 1.32v for 4Ghz stable, where my E8400 E0 only takes 1.27v (both figures after Vdroop).

You could also try adjusting your CPU clock skew up a little, say to 200ps (it's under Clock Gen Configuration).