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AMD CPU Core Overclocking

post #1 of 13
10/11/12 at 11:49pm
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Need a quick primer on this. I guess back in '09, there weren't many AMD CPU's out there with multiple cores cause my '09 BIOS for my ASUS board had no option for overclocking any cores.

Latest ASUS BIOS upgrade has a new option to overclock my CPU's cores. Automatic Clock Calibration I think starts it all off. Turn this on and a bunch of other options open up. An "Unleashing" option opens up that warns you if you choose it that it may not jive with all overclocking.

So I can overclock all cores and it goes by -2%, -4%, also +2%, +4% and so on. Don't understand what I am looking at.

In just a few sentences can someone wrap up what these new options are allowing us to do? Thanks.
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post #2 of 13
10/12/12 at 12:00am
You should fill out your rig signature to give a better idea what hardware your working with. Unleashing mode is for unlocking cores if your CPU supports it. As for ACC check the wiki here http://en.wikipedia.org/wiki/AMD_700_chipset_series#Advanced_Clock_Calibration
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post #3 of 13
10/12/12 at 12:04am
In short, ACC and unleashing mode allow you to unlock dormant cores (if any) on your chip.

What are the rest of your specs?
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post #4 of 13
10/12/12 at 12:07am
1) AMD released dual-core CPU's before intel did.

2) ACC is for overclocking and core unlocking but should be left on Auto, there are guides on the internet that can help you figure out if tweaking it will help but for the most part it's not worth the time. Adjusting it won't turn a dud CPU into a golden chip.

3) You're looking at the ASUS auto overclocking "crap". Search around in your motherboard's manual for details on each section, it should give you most of the info you need.

4) Check the stickies (in the AMD section), they have tons of information.

http://www.overclock.net/t/226939/amd-cpus-current-tech-essentials-older-tech-link-included/0_30
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post #5 of 13
10/12/12 at 12:08am
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post #6 of 13
10/12/12 at 9:31pm
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post #7 of 13
10/12/12 at 9:36pm
Quote:
Originally Posted by JBRONCFAN View Post

Need a quick primer on this. I guess back in '09, there weren't many AMD CPU's out there with multiple cores cause my '09 BIOS for my ASUS board had no option for overclocking any cores.
Latest ASUS BIOS upgrade has a new option to overclock my CPU's cores. Automatic Clock Calibration I think starts it all off. Turn this on and a bunch of other options open up. An "Unleashing" option opens up that warns you if you choose it that it may not jive with all overclocking.
So I can overclock all cores and it goes by -2%, -4%, also +2%, +4% and so on. Don't understand what I am looking at.
In just a few sentences can someone wrap up what these new options are allowing us to do? Thanks.

You really don't need to mess with those setting in the ACC,This only for AMD CPU'S with factory disabled Cores like the CPU I'm using.Which is a 960T with x2 cores disabled from factory(Which means I can use the ACC to enable the 2 factory cores to turn my CPU in to a x6 Core CPU.


BTW here is an Overclocking Guide that may help you:http://www.overclockers.com/forums/showthread.php?t=596023
Edited by AMOCO - 10/12/12 at 9:43pm
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post #8 of 13
10/13/12 at 6:43am
Thread Starter 
Thanks for all replies.

Was just hoping someone could explain to me what exactly does it mean if I assign -2% to all of my CPU's cores? Or any number for that matter. What exactly does Unleashing Mode mean? Is it better to leave well enough alone or will I actually see a performance boost in enabling the ACC? Thanks.
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post #9 of 13
10/13/12 at 7:06am
unleashing mode wont do anything for a 955. its a native quad core. there is nothing to unlock.
acc can help stabilize an unstable overclock if you have 1 or 2 cores that need more vcore than the other 2 or 3. really only helps with 1 core needing the bump.
the - side of the acc is if you know 1or 2 cores can be stable running less vcore.
you could use acc core unleashing to also lock cores closed/off. this way you can see how far each core overclocks at what voltage. this where YOU would use it. example following....
ie: find stable clocks @1.4 vcore on each core. maybe cores 0 and 2 and 3 run 3.6ghz @1.4v but core 1 only reaches 3.4ghz@1.4v . . . find out how much vcore you need to make core 1 stable at 3.6ghz. if it only needs 1.456v to be stable 3.6ghz, set core1 at +4% in acc


also fill out your rig info. youll get more help specialized to your board. we wont have to jump back to your post with your specs.
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post #10 of 13
10/13/12 at 7:19am
^ This
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