P4C800-E Delux CPU multiplier unlock

waveinjector · Sep 28, 2004, 07:26 PM

Starting with BETA bios 1018.001 (current 1018.004) the cpu multiplier can be unlocked for the P4C800-E Delux.
Flash at your own risk. Always use latest flashing software.

ftp://ftp.asuscom.de/pub/ASUSCOM/BIO...e/1018ed04.zip

>GSXR<mrbusa · Sep 28, 2004, 07:44 PM

have you tried this set?i am running the 1018.01 set and they seem to be stable.but i got them from a forum i cant find anymore.where did these get posted at,i dont see them on asus usa.thx

Nacht · Sep 28, 2004, 07:51 PM

looks like asus's german ftp...god, i want that mobo!

waveinjector · Sep 28, 2004, 08:07 PM

i'm runing the 1018.004 version at FSB 250 mhz, bus speed 1ghz, multiplier 14.
went from a 3.2Ghz(prescott) to 3.5Ghz. did some burnin test seems stable.

using 2X512 Corsair Twinx PC4000.

>GSXR<mrbusa · Sep 28, 2004, 08:11 PM

thx for the reply,hey were you able to keep current bios settings for the flash?and where did you find these at?i cant find any info on these anywhere.later

waveinjector · Sep 28, 2004, 08:16 PM

not sure i get it for bios settings. as i flash i loose all settings. i used cpu-z to get the values. what happend is that the new feature lowered my cpu multiplier clock to be able to run the ram so fast.

GutterPunk · Sep 28, 2004, 11:21 PM

what options are you given for the multiplier to be unlocked, and has any1 tried that specific bios yet?

No_Style · Sep 29, 2004, 12:19 AM

Quote:

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
P5GD2
P5GD1
P5GD1 Pro
P5GDC Deluxe
P5GDC-V Deluxe
Coming soon boards:
P5P800
P4C800-E Deluxe
P4P800-E Deluxe
P4P800 SE
P4P800-X
P4GD1

Source: ABXZone Thread which a forum member copied before ASUS took down the news article. I don't see my P4P800 Deluxe there.. -E but not the regular one. I hope it works nontheless and I also hope it's not bound by certain types of CPUs.

P.S - I also enjoy the typo.. which kinda makes it look like some kind of joke. 3004?

free_refil · Sep 29, 2004, 12:43 AM

I thought that P4 chips were multiplier locked on the CPU die?

kristos · Sep 29, 2004, 09:54 AM

Quote:

allowing the system to operate with FSB frequency up to 258MHz

If you flash this bios, you can only go up to 258fsb ?

If so, what's the use then? you may get higher fsb but you loose pure cpu overclocking potential big time no?

waveinjector · Sep 29, 2004, 12:49 PM

Quote:

Originally Posted by GutterPunk

what options are you given for the multiplier to be unlocked, and has any1 tried that specific bios yet?

the option are as follow: auto, enable, disable

waveinjector · Sep 29, 2004, 12:51 PM

Quote:

Originally Posted by kristos

If you flash this bios, you can only go up to 258fsb ?

If so, what's the use then? you may get higher fsb but you loose pure cpu overclocking potential big time no?

the good thing about this feature is that you can use your fast ram if you have it, without having to get extreme cooling solution form the P4, as the multiplier is reduce.

GutterPunk · Sep 29, 2004, 01:32 PM

when i meant options i meant what multipliers you have a choice for... 14, 18, 20 10, or all the above and everything in between?

waveinjector · Sep 29, 2004, 02:31 PM

i have no option it's the bios that sets the best setting for your selected fsb, i think it can only downgrad the mutiplier, because as soon as i activated it, with touching other setting i went from a 3.2ghz to a 2.8ghz with fsb 200.

GutterPunk · Sep 29, 2004, 03:13 PM

oh i want to up my multiplier

me.myself.&.ATi · Sep 29, 2004, 03:56 PM

i just installed the beta bios & can't seem to find the option to change the multiplier...

i'm using a P4C800-E Deluxe with a 3.2 FSB800 Northwood...

hmmm...somebody throw me a bone here will ya' plz?

>GSXR<mrbusa · Sep 29, 2004, 04:21 PM

just istalled and i to have no multiplier settings available,damn it jim

GutterPunk · Sep 29, 2004, 04:24 PM

dang... ill wait till someone has success w/ it till i do it lol

me.myself.&.ATi · Sep 29, 2004, 04:35 PM

Quote:

Originally Posted by GutterPunk

dang... ill wait till someone has success w/ it till i do it lol

i do notice an increase in memory bandwith GutterPunk

also....it seems quite stable after a couple of 3DMark03 loops...

just thought of something though....

could it be that this multiplier trick is only possible with Scotties??

marvelous board....ain't it?

waveinjector · Sep 29, 2004, 05:13 PM

Quote:

Originally Posted by me.myself.&.ATi

i just installed the beta bios & can't seem to find the option to change the multiplier...

i'm using a P4C800-E Deluxe with a 3.2 FSB800 Northwood...

hmmm...somebody throw me a bone here will ya' plz?

i found the option under:

JumperFree configuration
set to manual
set CPU lock free to enable
and

CPU configuration
CPU lock free set to enable

I'm using a 3.2ghz prescott revision C0

me.myself.&.ATi · Sep 29, 2004, 07:35 PM

No can do waveinjector

i appreciate your help bud but i really think it's CPU bound...

i thought i read somewhere that Intel implemented that function in Scotties only (wich you own i noticed)

just look at the pictures i took of my BIOS...

NO such setting at all!!

waveinjector · Sep 29, 2004, 07:38 PM

dam, it seems it only work on prescott then. would be nice if anybody else that has a prescott can confirm this.

me.myself.&.ATi · Sep 29, 2004, 07:41 PM

Quote:

Originally Posted by waveinjector

dam, it seems it only work on prescott then. would be nice if anybody else that has a prescott can confirm this.

i agree...

thx for the effort though

No_Style · Sep 29, 2004, 07:55 PM

Well, I've only heard things from Prescott users..

me.myself.&.ATi · Sep 29, 2004, 08:09 PM

Quote:

Originally Posted by No_Style

Well, I've only heard things from Prescott users..

was kind of fearing this...

thx anyway No_Style

kristos · Sep 29, 2004, 10:07 PM

from another asus newspost, I read that 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

me.myself.&.ATi · Oct 5, 2004, 07:15 AM

Quote:

Originally Posted by kristos

from another asus newspost, I read that 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

that's what i also read...thx for reminding me where it came from