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AMd Phenom II 720 BE 4 Cores Safe Voltage ?

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April 14, 2009 10:03:22 PM

Hey there peeps.....

I am running an AMD Phenom II 720 BE with 4 cores stable at 3.4 Ghz with 1.475V. I believe that at this voltage I can get it to about 3.6 (But that is another story)

But my question comes regarding the voltage.

Ive read that max is 1.425. That seems clear to me, BUT, I unlocked the fourth core and works great. Ran Pirme95 for 12 hrs and no errors. I also ran AMD Overdrive for about 9 hrs and all is great.

Now, my question is.... Is it safe to be running the cpu at 1.475V for everyday use?

Another question is that apparently, when you unllock the fourth core, the bios changes the max power for the cpu at 1.55V.

Would this be because it needs more juice to power 4 cores instead of 3??

Any input would be great on what would be a well balanced voltage for everyday use and overclocking the cpu without shortening the cpu's life.

:D  :bounce:  :wahoo:  Thnaks!!
April 14, 2009 10:09:02 PM

you are safe there but dont take it any higher. 1.5Vcore is highest recommended for a 940.
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April 14, 2009 10:11:56 PM

he's talking about a 720BE, if that makes any difference.
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April 14, 2009 11:01:53 PM

shiftstealth: Thanks for the reply, but I am asking about a 720 BE. :wahoo:  :wahoo: 


Quote:
he's talking about a 720BE, if that makes any difference.

April 14, 2009 11:28:11 PM

if the voltage is supposed to top out at 1.425 then i wouldnt go over that. I had a pentium D 820 that i got to 4 GHz stable for CoD4, but it was operating at 1.44 vcore. the max was supposed to be 1.4. after about 9 months of running 24/7 it became unstable so i scaled back the speed. ended up dropping to a max OC of 3.81GHz because id damaged the CPU.
April 15, 2009 10:06:15 AM

the max your allowed to go with amd procs is 1.475

April 15, 2009 3:54:09 PM

Thanks for the reply.

But could you share your source on which you base this reply?

I would like to get more info on this and see if I can run this voltage 24/7 without risking or degrading the cpu's life too much.

:)  :)  :) 
April 21, 2009 4:50:02 AM

Gigabyte's UD5P made it all the way up to 3.4GHz without a bump in processor voltage, but 3.6GHz required 1.4V, and 3.7GHz 1.45V to maintain stability. Those voltages are still well within the realm of what's reasonable, even for modest air cooling.
http://www.techreport.com/articles.x/16702/8

Yea...I'm running mine at 3.725Ghz wit 201.3x18.5x1.475. No problems yet, scoring high on vantage (11688 with performance edition) Can stand in place FFTs
!