Yes it is all written but my voice is not cooperating at the moment. I've had a cold for the last three days and I sound worse than usual :) I should have my voice back and Lesson 5 online by Friday.
The CPU is stable at 3.9GHz, but to get to 4GHz I had to max out the CPU Voltage to 1.4v and even with the new cooler the temperatures went over 100c. The CPU's safety kicked in and lowered the multiplier. It would take a water cooler to get this CPU to 4GHz. I don' t think the expense and trouble would be worth it for .1GHz.
The Core i7 920 I have is one of the first, with Stepping 5, Revision C0/C1. The more recent D0 stepping version of the Core i7 overclocks a little easier. They came out around April of 09, so you may have that one and 4GHz won't be any problem for you. I go over Steppings and Revisions in the video. The Core i5 which is based on the more recent version of the Core i7 overclocks a little easier as well.
I'm taking all my medicine and drinking plenty of water. I just wish I could taste my food.