Core 2 Duo unlocked for multiplier

[GlassFish]

Description :
Overclockers know the problem, a firm is not exactly optimal multiplier for overclocking. Intel Core 2 Duo, the right motherboard and the BIOS is not a proper subject. t are the BIOS of ASUS programmers who have found a trick to the multiplier lock on the (most) Core 2 Duo processors to handle. This is possible with the motherboard P5B Deluxe and P5B Deluxe / WiFi-AP. Already in the BIOS version 0507 was the feature, "Lock Free function" called integrated.


Definition :
With the value Disabled for normal use CPU multiplier, the value of Enabled allows you to use other than a nominal factor, of course, if the processor supports this feature.

Multiplier -
The ratio of the working frequency of the processor to the physical frequency of the system bus.

[GlassFish]

How to do :
There are two ways to "make" the processor to work at a frequency different from the nominal. First, this correction of the system bus - the remainder of the former factor will cause a proportional change in the frequency of the processor. Secondly, at a fixed frequency system bus CPU multiplier adjustment will lead to a regular increase or decrease the final operating frequency. The best option for overclocking is possible to recognize a combination of these techniques: a reduction or increase of a factor, coupled with the simultaneous rise of system bus frequency can simultaneously reach the "ceiling" as the frequency capabilities of the processor, and the frequency potential of the motherboard. (As practice showed, for the processor is usually the limiting factor becomes the final operating frequency, and for the motherboard - the system bus.) Free modified multiplier is only available in processors for enthusiasts (very expensive series Extreme Edition from Intel and a more democratic and costs from the Black Edition AMD), conventional processors are only allowed to decrease. This, if you talk about modern solutions (Core family of Intel, Athlon X2 and Phenom from AMD). Older models - for example, Pentium 4, the majority of Athlon XP - and does characterized by a fixed factor.

The BIOS version 0614 is available for download, which also offers this feature and two more bug fixes in this regard include:

- Fix some lock cpu will show "modify ratio" item in bios (ex :660-SL7Z3 3.6GHT PSC800 2M/EM64T 002)
- Fix some lock cpu frequency not correct when lock free function enable (ex :660-SL7Z3 3.6GHT PSC800 2M/EM64T 002)

Interesting is the main reason to leave because usually bring in the small processors on the same level of the large number of CPUs. In other words: the lower CPUs can usually have the same clock speed, "" we take the more expensive processors - and that is most convenient and easiest on the multiplier, as this really only the CPU is overclocked. ASUS seems to be currently the only manufacturer that allows you to change the multiplier up and down. This is likely the ASUS P5B Deluxe make it an "exceptional overclockers board" - at least as long until other manufacturers follow suit.