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X3 720 BE and 1.440v

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July 1, 2009 5:41:23 PM

On the AMD website they list the max voltage for the X3 720 BE as 1.425v.
But would it be okay to use 1.440v if your temps are low? Thanks

More about : 720 440v

July 1, 2009 6:22:15 PM

I'm not telling you what to do, telling you that you should overvolt, etc.

However: I do have my PII x3 720BE @ 3.399GHz running at 1.45v.

And, it does run cool with a good HSF installed properly and a good case with good airflow.

Good luck.
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July 1, 2009 7:03:28 PM

joedoe said:
Here is a very good article on overclocking the PII X3 720:

http://www.microdots.org/ramblings/node/30


But he says to stay at or under 1.425v.
I see a lot of reviews and posts around the web that with good cooling (which I have), it is okay to go above 1.425v, but should stay under 1.500v.

Here is the information for my required voltage.

X3 720 BE (4 Cores Unlocked)
200 Bus Speed and 1600 HT Link with XX.X multiplier
At 1.424v, I have fully stable quad core at 3.3Ghz.
At 1.440v, I have fully stable quad core at 3.4Ghz. (X)
At 1.488v, I have fully stable quad core at 3.5Ghz.

(X) = Would like to use this voltage.
July 1, 2009 7:07:47 PM

How do you know that the 4th unlocked core is stable?

Mine seemed stable (I could run mprime for hours), but virtualization didn't work.
Virtualbox & vmware had problems with it.
And occasionally, I had some weird crash.
July 1, 2009 7:12:09 PM

btw, with 3 cores only, what vcores do you need for stable OC?
July 1, 2009 7:15:07 PM

joedoe said:
How do you know that the 4th unlocked core is stable?


Tested with Prime95 and IntelBurnTest. No crashes as of yet with right voltage.

joedoe said:
btw, with 3 cores only, what vcores do you need for stable OC?


Haven't tried to overclocking with 3 cores. As I got the x3 720 for the small chance to unlock into a quad, and it worked out.
July 1, 2009 7:20:46 PM

Watch out with the 4th core. Most of the times it is defect.
As I said, strangely mine passes prime but virtual machines don't even start.
When I disable virtualization in the bios, then virtual machines run OK,
but occasionally I get a system freeze.
a b à CPUs
July 1, 2009 9:56:15 PM

You should be able to downclock the 4th core using Overdrive?

As for volts, 1.44 is nothing really. It's what AMD are saying is safe under any circumstance. The Phenom II will go to some extremely high voltages however, mine boots ok at 1.6v and my best friend got hers to boot windows at 1.65v.

If you aren't sure, use 1.5v as your no-go cutoff mark. I'm 100% sure you'll be quite fine under 1.5v. Once you are at 1.55v is when you are really into the 'scary' stuff.
July 1, 2009 10:08:00 PM

^^ agreed. Just watch it closely
July 2, 2009 4:37:30 AM

jennyh said:
You should be able to downclock the 4th core using Overdrive?

As for volts, 1.44 is nothing really. It's what AMD are saying is safe under any circumstance. The Phenom II will go to some extremely high voltages however, mine boots ok at 1.6v and my best friend got hers to boot windows at 1.65v.


agreed. its just AMD telling people to be cautious with their OCing, but yes, they can run at some insane voltages.

im getting mine this friday :D 

NO MORE 5000+ BE!!!!!!!!!!!!!!
!