My eVGA X58 3XSLI mobo has an OC option in the BIOS that is called "Dummy OC"! One reviewer was so aghast at this nomeclature that he called that a "really dumb name"!
Nevertheless, choosing that instantly gave me my i7 920 processor a boost to 3.2 GHz, fully stable without any problem whatsoever. Not bad for a"Dummy", I must say!
BTW, as I had expressed my suspicion in an earlier post, I had some problem with my browser, but I have now regained the "Edit", "Quote", etc buttons in this forum posts. I uninstalled and then re-installed my Firefox browser and installed my favourite add-ons, And I am now all set!