P4C800-E Deluxe CPU multiplier unlock

@ 2004/09/29
Starting with Asus BETA bios 1018 .001 (current 1018.004) the mutiplier can be unlocked. Use it at your own risk.


OMG ? can somebody test this? only seems to work for Prescotts?

Comment from kristos @ 2004/09/30
This is what I could pick from my memory so pardon any inaccuracy

perscott 3.2 and 3.4 (others weren'tt mentioned) use a sort of multiplier throttleing techinque at boot up. during boot up, the multi gets set to 14
Comment from kristos @ 2004/09/30
lol, funky ****, I click the link on xs, doesn't work, I go through some other forums trying to find out more and come accross another link, works so I post it, now it's down again?!?
Comment from jmke @ 2004/09/29
Comment from kristos @ 2004/09/29
Comment from kristos @ 2004/09/29
Originally posted by Mazzy
Intel on latest prescott (3.2 and 3.4) have implemented a trick at the boot to ease the load on the power circuits, it'll boot with a lower multiple (lower speed) and after it'll reset at the default. Asus have found a way to keep the lower multiply all the time... Great.
Comment from kristos @ 2004/09/29
Link was already down then but the topic starter metioned driverheaven so I did a search there and found this.

btw, there's an ocz contest going on at driverheaven but you need 10 posts on their forums to be able to compete
Comment from jmke @ 2004/09/29
ah; saw the links posted but never got to read it, thanks for the list!
Comment from kristos @ 2004/09/29
asus newspost before it was taken down:
Taipei, Taiwan, September 21 3004 ¡V Every user with some experience on computer hardware knows this formula:

CPU operation speed = FSB frequency x CPU multiplier

Users tweak their systems either by increasing FSB frequency or CPU multiplier, which is usually locked for the Pentium 4 CPU when purchased of the shelf, greatly limiting your overclocking options.

Here¦s the good news for overclockers!! ASUS Motherboards now offer the CPU Lock Free feature, which allows you to adjust CPU multiplier to 14x. The reduction of multiplier value provides more flexibility for increasing external FSB frequency to raise memory bus bandwidth.

The following example demonstrates the effectiveness of CPU Lock Free. As the table indicates, CPU Lock Free adjusted CPU multiplier from 18x to 14x, allowing the system to operate with FSB frequency up to 258MHz(maximum bandwidth 8.23GB/sec) and memory bandwidth up to 10.98GB/sec while CPU operation speed remained at 3.6GHz.

CPU Lock Free boosts overall system performance by making synchronous modification possible. Enjoy better performance at the same CPU operation speed and improve your system without pushing the CPU to the limit.

Motherboards supporting CPU Lock Free:
P5 AD2 Premium
P5 AD2 Deluxe
P5GD2 Premium
P5GD2 Deluxe
P5GD2 Pro
P5GD1 Pro
P5GDC Deluxe
P5GDC-V Deluxe
Coming soon boards:
P4C800-E Deluxe
P4P800-E Deluxe
P4P800 SE