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Question regarding a Phenom II X2 555

post #1 of 6
Thread Starter 
What's the average voltage I'd see to hit 4GHz on just two cores? My board won't unlock the chip, according to the ASrock main site, so I'm heading for that 4GHz mark if at all possible.

The 4GHz club didn't help much, the submissions of course. As almost all of them are above the allowed Vcore for the chip. >.<

Just trying to find a good place to start. I've got a GTX 470 on the way.
     
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post #2 of 6
Likely around the same voltage as any other Phenom II.
Waiting on X399
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Waiting on X399
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post #3 of 6
it depends on the cooler
more voltage = more heat = requires a better cooler
i think 1.55 is the max voltage and 70c is the max temp, keep it under 60c
and the cpu, c2 will have a slightly higher vcore than c3

and also the motherboard, is it capable of pushing the cpu to 4ghz?
post #4 of 6
First off u should really update the sig rig to show us what cooling you have etc...but other than that there should be no problem for you to get to 4ghz even on the stock voltage 1.38v, my 555 is at 1.43v for 4.2ghz and 1.3v for the 2800mhz cpu-nb overclock...most importantly you need to watch the temps, 71c is the limit for the c3 chips, but for amd stability falls off over 60c so if you don't have an after market cooler i suggest you get one. The hyper 212+ is excellent with this chip since the c3 revision is only an 80watt, low watts + big cooler = my chip gets up to only 30c under fill load in a 25c room
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post #5 of 6
Thread Starter 
Quote:
Originally Posted by amd-dude View Post
First off u should really update the sig rig to show us what cooling you have etc...but other than that there should be no problem for you to get to 4ghz even on the stock voltage 1.38v, my 555 is at 1.43v for 4.2ghz and 1.3v for the 2800mhz cpu-nb overclock...most importantly you need to watch the temps, 71c is the limit for the c3 chips, but for amd stability falls off over 60c so if you don't have an after market cooler i suggest you get one. The hyper 212+ is excellent with this chip since the c3 revision is only an 80watt, low watts + big cooler = my chip gets up to only 30c under fill load in a 25c room
I've got the Xigmatek Loki with twin fans tacked onto it. Everyone has said good things about it so I'm hopeful.

And I'm no novice for overclocking. I just got lucky with my 940. I prefer to have some kind of idea before I jump into the fray usually.
     
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post #6 of 6
Quote:
Originally Posted by Imglidinhere View Post
I've got the Xigmatek Loki with twin fans tacked onto it. Everyone has said good things about it so I'm hopeful.

And I'm no novice for overclocking. I just got lucky with my 940. I prefer to have some kind of idea before I jump into the fray usually.
Check out the guide i made for our series chips...ie 550 555 etc...i included some of my personal overclock settings...try them they may work...let me know how it goes. That's the guide in my sig BTW
Edited by amd-dude - 3/3/11 at 6:55pm
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