Oc 3450

[omaroma11]

Hello I wanted to know how to overclock a 3450 on a z77 sabertooth i know the max oc for the 3450 for all four cores is 3.7ghz so I wanted to know exactly how to overclock thank you in advance

 

[DJDeCiBeL]

Raise all the Turbo multi's by 4 each.

 

[omaroma11]

i sort of a noob at overclock where do I find that

 

[DJDeCiBeL]

Go to Ai Tweaker in the Advanced mode of the BIOS and set the "Turbo Ratio" option to "By Per Core (Cannot Adjust in OS)". After that, you'll be able to set the ratios by using the +/- keys on the keypad.

 

[omaroma11]

do i need to change the voltage

 

[omaroma11]

i started at 37 i can only go to 39 not 41 cus you said plus 4

 

[DJDeCiBeL]

Hmm. Should be able to go +4 (that's how the "locked" Sandy Bridge's are, anyway), but no, Auto voltage will be fine for such a small OC.

Just to be clear, that's +4 on each one.

Like this (showing an i5 2500):

 

[omaroma11]

im looking under the 1 core ratio limit and there is 4

 

[DJDeCiBeL]

im looking under the 1 core ratio limit and there is 4

I'm not understanding what you mean by that.

There should be 4 separate Turbo multipliers that you can adjust, if that's what you're saying.

1 Core Turbo would go to 39x, then 38x for two (or possibly 39x too because I think I've seen that Ivy has the same one and two core Turbo speed), then 37x for 3 and 36x for 4.

So 3.6Ghz will be your max 4 Core OC and the max possible Turbo speed overall is 3.9Ghz.

 

[omaroma11]

got you i think i had ratio synch control enabled it should have been disabled so do i check my speed on cpiuz

 

[omaroma11]

Best answer selected by omaroma11.

 

[omaroma11]

im getting 3.2 ghz

 

[DJDeCiBeL]

Well, 3.2 is stock 4 core Turbo. Did you make sure to save the settings in the BIOS and recheck them afterwards?

 

[omaroma11]

yes

 

[DJDeCiBeL]

I just had a look at the manual for the Sabertooth Z77, and I was slightly wrong anyway. It's different than the BIOS on my Asus Z68 board.

The Turbo Ratio needs to be set to "Manual" (which I think you've done). Then set "1 Core Ratio Limit" to "Manual" and then 39. After that, set the others to Manual, as well, then set them like I said above.

So, "1 Core Ratio Limit" set to "Manual" and 39, "2 Core Ratio Limit" set to "Manual" and 39 or 38, "3 Core Ratio Limit" set to "Manual" and 37 and finally "4 Core Ratio Limit" set to "Manual" and 36.

And according to the manual, "Synchronizing Control" needs to be Enabled.

 

[omaroma11]

will do

 

[DJDeCiBeL]

will do

Be sure to read the edit, too, if you didn't see it.

 

[omaroma11]

did you say synch control should be enabled because when it is i can only change the 1 cores ratio

 

[DJDeCiBeL]

did you say synch control should be enabled because when it is i can only change the 1 cores ratio

That's what the manual leads me to believe

But if it won't let you set the multi's individually with it enabled, I suppose it needs to be Disabled.

 

[omaroma11]

oh okay sorry my sync core was enabled my bad and what do you mean by 1 and 2 and 3 and 4 core limit to be set to manual

 

[DJDeCiBeL]

and what do you mean by 1 and 2 and 3 and 4 core limit to be set to manual

This

 

[omaroma11]

how do i paste an image here i got a screen shot of my bios

 

[DJDeCiBeL]

how do i paste an image here i got a screen shot of my bios

I just use Imageshack to upload the image and then use the image tag to post it here, like this:

 

[omaroma11]

 

[omaroma11]

took me a while image shack wasnt working so i used photobucket instead