Héllo boyz ,
Voila j'ai stabilisé le pc @ 4.5/1.340V (45x100) je pense que le fréquence stable utilisable h24 de mon cpu sera entre 4.6 et 4.7 avec un core de 1.380v max.
Le Vcore et Sandy brige:
"Right guys myself and our technical guys have spent the entire weekend and this morning in discussions with Intel regarding the alarming amount of reports of Sandybridge CPU's dying and have been conducting our own testing as have Intel to find out what is a definite no no."
Core Voltage - Not recommended too exceed 1.38v, doing so could kill the CPU, we therefor recommend a range of 1.325-1.350v if overclocking.
Memory Voltage - Intel recommend 1.50v plus/minus 5% which means upto 1.58v is the safe recommended limit. In our testing we have found 1.65v has caused no issues.
BCLK Base Clock - This is strictly a NO, anyone using base clock overclocking could/will cause damange to CPU/Mainboard. (Set manually to 100)
PLL Voltage - Do not exceed 1.9v!!
Processor - Basically we recommend customers not to exceed 1.35v to play it safe, all our bundles are set at 1.3250v or lower, any competitors offering bundles above 4.6GHz you should be enquiring as to what voltage they are using as we believe anything over 1.38v will limit CPU lifespan and anything over 1.42v will likely kill the CPU or severely limit its lifespan.
Une astuce tres importante pour les possesseur de sandy brige, diminuer le cpu PLL a la valeur la plus faible du vid intel cad 1.710V,de bese vers les 1.80 (1.83v en auto chez moi)
ça permet de diminuer fortement la température du cpu en charge de 5 a 10° et ça n'imflue pas sur la stabilité.
Le principal guide que j'ai utilisé pour mon OC:
http://www.overclock.net/intel-general/910467-ultimate-sandy-bridge-oc-guide-p67a.html
Les app que j'ai utilisé pour tester la stabilité :
Linx:
http://www.xtremesystems.org/forums/showthread.php?201670-LinX-A-simple-Linpack-interface
Prime95 26.6