Posted by a reviewer on Amazon

Partly this has to do same bins for the same product tiear come out of different manufacturing lots

Posted by a reviewer on Amazon

So you may want to figure out immediately upon arrival if you got shafted by getting an i7920 that has lame overclocking potential because it barely made it into the i7 920 bin or if instead you got lucky getting a cpu at the upper end of the bin distribution on parameters that are related to overclocking

Posted by a reviewer on Amazon

You find that out by overclocking trials keeping in mind that intel policy is that your warrenty is void if youve overclocked your cpu

Posted by a reviewer on Amazon

Now if you can further overclock under those conditions to 4

Posted by a reviewer on Amazon

Note if your testing environment doesnt match the 22c standard then a rough thermal design ruleofthumb is to linearly offset if you test at room temp 20c and get steadystate max load junction temps of 72c then you must add about 2c to that which puts you at 74c which is above the recommended 72c maxbut if youve done you pc and bios settings correctly and still cannot get it to 3