Hi everyone

There was a bit of a technical hiccup with the blogs that prevented new blog entries from being posted, but that's been fixed so today I can show you how to overclock the Intel Core i7 920 D0 to 4GHz.

The Intel Core2 range was a phenomenal success.  It was blazing fast, relatively cheap and overclocked well, making it an instant success.  The Core2 range used the following equation for its core speed:

Core speed = bus speed X CPU multiplier

If you don't know what your bus speed is, divide your front side bus (FSB) by four.  As an example, my Intel Core2Quad Q6600, using the formula, runs at:

2,400MHz = 266MHz X 9

The bus speed and CPU multiplier was dependent on the type of CPU being used.  The QX9650, for example, used a 333MHz bus speed.

Now, this concept can be applied to Intel's Core i7 range as well.  The formula changes to:

Core speed = base clock X CPU multiplier

However, in the case of the Intel Core i7 range, the base clock is standardized to 133MHz, meaning only the CPU multiplier is dependent on the CPU being used.

The Intel Core i7 920, by default, runs at:

2,660MHz = 133MHz X 20

However, this base clock can be changed, enabling you to run your CPU at higher core speeds.  To achieve a 4GHz core speed with the Intel Core i7 920, you can set the base clock to 200MHz, giving you the following:

4,000MHz = 200MHz X 20

All you need to do is to set the base clock value to 200MHz, increase the CPU's voltage slightly (I set mine to 1.275V in the BIOS) and you're good to go!