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  Tom's Hardware Forums » CPU & Components » CPUs » CPU multiplier question, P5W DH, E6600, can I change it?
 

CPU multiplier question, P5W DH, E6600, can I change it?

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 Thread : CPU multiplier question, P5W DH, E6600, can I change it?
 
fishboi
Profile: nimble knuckle
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n°1323667
10-31-2006 at 04:47:10 PM

Hi,

My specs are in the sig below. Am I able to change the multiplier on the P5W DH Deluxe? My goal would be to get my RAM at full speed (800Mhz), therefore changing the FSB to 400Mhz.

I need a multiplier of 8 then to keep it stable at 3.2Ghz. The max I can get out of my system now is 3.33Ghz (crashes to blue screen of death if I go over). Running at 9X will make it 3.6Ghz, which isnt possible on my system.

Any ideas? Thanks guys.

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godman
I personally pwn you
Profile: addict
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n°1323676
10-31-2006 at 04:53:23 PM

dunno go into the BIOS and check or have a look on asus' website and see what BIOS updates there are and what they fix + if they allow the downward setting of the multiplier :)

I think you should be able to do it with a BIOS update :)

fishboi
Profile: nimble knuckle
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n°1323681
10-31-2006 at 04:55:27 PM

Yeah sorry, I forgot to mention that I have the latest BIOS, and am running 1407. I've looked around but couldnt find it. Some people have the option, others dont. I want to clarify this problem ASAP (ie. if it's CPU specific, or SW specific). Anyone?

fishboi
Profile: nimble knuckle
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n°1323689
10-31-2006 at 05:00:46 PM

Guys, does it have anything to do with the "Enhanced Intel SpeedStep" technology. I disabled that (as per Wusy's guide). I think that allows the CPU to adjust the multiplier, all depending on work load. Do I need to enable that, and then somehow find the settings adjustment? Maybe thats why it wasnt showing up. Anyone?

jrwalte
Profile: newbie
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n°1323691
10-31-2006 at 05:01:22 PM

Under the Chipset options do you have a field called something like CPU Multiplier? You need to enable this option. Then you can drop your multiplier as low as 6. If the option is greyed out, I don't know what you can do. If the option doesn't exist, update to the latest BIOS 1503, I believe, and see if that helps.

You may have to disabled Speedstep and CI (or whatever it is called).

Doughbuy
Profile: Honorary Poster
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n°1323695
10-31-2006 at 05:05:05 PM

I don't think the P5W-DH allows unlocked multipliers yet, and I don't know if Asus will ever allow it either...

fishboi
Profile: nimble knuckle
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n°1323696
10-31-2006 at 05:05:46 PM

I dont think I've seen it there, otherwise I would have tinkered with it (not at PC now). It wasnt greyed out either. The latest BIOS has not been officially released by Asus yet no? I'm not keen to update my life support system with a BIOS from an non-credible source. Any other ideas gents?

fishboi
Profile: nimble knuckle
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n°1323700
10-31-2006 at 05:07:00 PM

I know people have done it, I've read about it, but havent come across any text on how to do it. It differs from system to system - so thats why I just wanted to get some clarity. Someone must know something. Bring on the "old hands"!

godman
I personally pwn you
Profile: addict
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n°1323704
10-31-2006 at 05:08:27 PM

not quite sure i guess it would be both the cpu and motherboard, i was thinking about the P5B deluxe (965p) not the P5W (975x)....


heres a short thing about the P5B and cpu multiplier unlocking with core 2 duos:
http://www.anandtech.com/mb/showdoc.aspx?i=2822

Quote :


Some Conroe chips also unlock at the top, allowing ranges to about 14x. None of our Conroe chips unlocked up, but you may be one of the lucky ones who have a Conroe that unlocks both down and up.



that leads us to believe that it is the cpu that determins the multiplier unlocking - not the motherboard.....though the motherboards we are comparing are different... :?

fishboi
Profile: nimble knuckle
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n°1323709
10-31-2006 at 05:11:08 PM

Any info on what versions of the E6600 allow multiplier changing? I can go back and check the serial on my box.

fishboi
Profile: nimble knuckle
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n°1323717
10-31-2006 at 05:15:20 PM

Victorius! Guys, check this out. One step closer to solving the prob. Great screenshot to locate the setting.
http://img.neoseeker.com/v_image.p [...] 1&image=63

Now, I dont have that option. Is it my CPU, or can I get a crack via the BIOS to unlock it. How do I get this done? Thanks.

godman
I personally pwn you
Profile: addict
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n°1323721
10-31-2006 at 05:17:45 PM

PM jack or wusy they're sure to know....

anyhow I have read that there are no magic cpu numbers that give you a very good overclock or unlocked multiplier - yet... But i guess it is possible for it to happen.... :)

fishboi
Profile: nimble knuckle
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n°1323722
10-31-2006 at 05:18:42 PM

Does changing to multiplier from anything but stock:

1) Hinder performance in any way?
2) Damage or shorten the lifespan of the CPU in anyway?

Thanks.

godman
I personally pwn you
Profile: addict
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n°1323727
10-31-2006 at 05:20:23 PM

it does say:

Quote :


The CPU configuration screen lets us set the multiplier (on some processors) as well as control Speedstep and VT; the chipset screen allows us to set the memory timings.



by 'some' do they mean x6800s or do they mean 'some' E6xxx series core 2 duos? :?

godman
I personally pwn you
Profile: addict
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n°1323736
10-31-2006 at 05:26:42 PM

Quote :

Does changing to multiplier from anything but stock:

1) Hinder performance in any way?
2) Damage or shorten the lifespan of the CPU in anyway?

Thanks.



it will only hinder performance if you dont overclock the fsb, if you do overclock the fsb (in turn overclocking the processor) it will allow for the processor to be at or around the same speed as before but with a higher fsb.

it wont damage the processor, though if you drop the multiplier and ramp up the speed (allowing for a more relaxed FSB) then undobutably it will shorten the lifespan. Meaning temps increase, and if temps increase the processor's lifespan gets shorter. However just droping the multi on its own will not shorten the lifespan of the component.

godman
I personally pwn you
Profile: addict
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n°1323739
10-31-2006 at 05:27:51 PM

EDIT: higher voltage kills components.... :P

fishboi
Profile: nimble knuckle
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n°1323742
10-31-2006 at 05:29:43 PM

If I take the FSB to 400Mhz, and drop the multiplier to 8X, having a CPU speed of 3.2Ghz, with temps at 70C load (I know its high but its a long story), that should be ok right?

Alternatively, I can try get my CPU to 3.6Ghz, running my FSB at 400Mhz and at least using my RAM to the full of 800Mhz.

I've tried setting my RAM out of the 1:1 multiplier (ie. FSB = 370 and RAM = 800Mhz). It just crashes. Really bummed about this, cause I cant find any info!

fishboi