Cannot OC i7 3820 on Asus P9X79 Pro

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MrGimper

New Member

Joined

May 8, 2012

• May 8, 2012

• #1

Hi, I'm new to overclocking, so please bear with me!

I've got an i7 3820 on an Asus P9X79 Pro motherboard. I'm running 64GB RAM.

I've gone into the Advanced BIOS and changed the CPU multiplier from Auto to 40, just to get a quick overclock. This is the only setting I've changed.

However, the clock speed still sits @ 3.6Ghz.

Do I need to make further changes? I can't understand why this change doesn't take as I thought I should be able to do this for a quick overclock.

Cheers
G

 

EarthDog

Gulper Nozzle Co-Owner

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Joined

Dec 15, 2008

Location

Buckeyes!

• May 8, 2012

• #2

Put a significant load on the CPU and all the cores should jump up.

 

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ktownhero

Registered

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Joined

May 5, 2012

• May 8, 2012

• #3

EarthDog said:

Put a significant load on the CPU and all the cores should jump up.

Click to expand...

This. Multipliers scale to save energy and heat. Start up Intel Burn Test or Prime95 and you'll see it jump to 4GHz

 

vdgamer

Member

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Joined

Dec 5, 2010

Location

US

• May 8, 2012

• #4

Or turn off turbo boost and speed step in bios and you will run on max set frequency constantly, i personally have turbo boost off since its useless when cpu is oc'd past max turbo boost, and speed step on to save energy and keep temps lower

 

OP

M

MrGimper

New Member

Joined

May 8, 2012

• May 8, 2012

• Thread Starter
• #5

OK Thanks v much. I'll give it a go. I'm running this as an ESXi 5 server so may have to boot from a Windows Util CD and spin up the tools you mentioned.

 

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Oiram123

New Member

Joined

Jul 1, 2012

• Jul 1, 2012

• #6

Hello everybody.
I've got an i7 3820 on an Asus P9X79 Pro motherboard too. But I'm still searching the "Point" in my BIOS Advanced Menue to change
the CPU multiplier from Auto to "xy".
What is the name of the "Point" that I have to look for and where is it.
I can't find it in my Ai Tweaker menue

Thanks for your help...

 

redduc900

Inactive Moderator

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Joined

Dec 17, 2000

Location

Portland, OR

• Jul 1, 2012

• #7

I'm not sure what you mean by "point", but the multiplier is changed via Advanced Mode--> Ai Tweaker / CPU Performance Settings--> CPU Ratio.

 

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Oiram123

New Member

Joined

Jul 1, 2012

• Jul 1, 2012

• #8

I meant by "Point" the directory where I can change the CPU multiplier.

Your answer is that what I was looking for.

Thank you!!!