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Thread: OCing AMD X3 720 BE

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    OCing AMD X3 720 BE

    Hi,

    Just wondered what speeds people have been getting and whether its best to just change the multi or to OC the FSB as well, ie a bit of both?

    I was running stably (intel burn test was running for about 6 hours before i had to go to bed) @ 3.5GHz with +0.15v (17.5 multi, 200FBS) but 3.6GHz was needing more voltage - whats the max voltage people would go for, and what sort of temps??

    Cheers, Neil
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    • Sputnik's system
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    Re: OCing AMD X3 720 BE

    I was running mine at 3ghz @ 1.325volts. I think it's best to go for multiplier first, then try getting a little more from the FSB ?

    According to AMD the max. is 1.425volts but, I've seen others using 1.5volts.

    what is the production date of your CPU? Have you managed to unlock the 4th core?

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    Re: OCing AMD X3 720 BE

    I would look at lowering the HT frequency before you up the fsb so that you have more headroom.

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    Re: OCing AMD X3 720 BE

    Im very pleased to inform you ive just managed to unlock the 4th core and its running at 3.2GHz @ stock voltage but i dont know how stable it yet!!!
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    • Sputnik's system
      • Motherboard:
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    Re: OCing AMD X3 720 BE

    Quote Originally Posted by nvening View Post
    Im very pleased to inform you ive just managed to unlock the 4th core and its running at 3.2GHz @ stock voltage but i dont know how stable it yet!!!
    Is this using the Biostar board? I got a test BIOS from J&W for the 790GX board but, so far all I've managed to do is make the board unable to load BIOS on start up. Luckily, I recovered it from the back up BIOS.

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    lazy student nvening's Avatar
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    Re: OCing AMD X3 720 BE

    yuh, the biostar one, im pleased i went for it now - was cheaper too!!

    and my pc hasnt crashed so far, ill leave intel burn test on overnight
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    Re: OCing AMD X3 720 BE

    I hope the fourth core is stable!! The Biostar 790GX motherboards seem to be quite good at unlocking the Phenom II X3 710 and 720 from what I have read.


    Those despicable Elk,stealing the pond weed!

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    • Sputnik's system
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    Re: OCing AMD X3 720 BE

    Quote Originally Posted by CAT-THE-FIFTH View Post
    I hope the fourth core is stable!! The Biostar 790GX motherboards seem to be quite good at unlocking the Phenom II X3 710 and 720 from what I have read.
    Now who was it that recommended the J&W board to me?

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    Re: OCing AMD X3 720 BE

    lol - incase anyone was wondering all i did was set the ACC to auto
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    Re: OCing AMD X3 720 BE

    Quote Originally Posted by Sputnik View Post
    Now who was it that recommended the J&W board to me?
    I wonder who that could be.....??!!

    I am a bit dissapointed about the BIOS not supporting unlocking better!! Sorry.....!

    I blame the Moose...!

    Actually, I retract blaming the Moose as I am worried about incurring the wrath of Moose who may plummet on me!! As you know Moose are vertically challenged!!
    Last edited by CAT-THE-FIFTH; 23-04-2009 at 12:11 AM.


    Those despicable Elk,stealing the pond weed!

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    Re: OCing AMD X3 720 BE

    Quote Originally Posted by nvening View Post
    lol - incase anyone was wondering all i did was set the ACC to auto
    Yeah, That seems to be it for the boards that are capable of unlocking the 4th core. The J&W board has a Jumper marked JHDT which I'm not sure on it's use and the manual does not give an actually description of it's use. It just says, overdrive or normal ?

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    • Sputnik's system
      • Motherboard:
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    Re: OCing AMD X3 720 BE

    Quote Originally Posted by CAT-THE-FIFTH View Post
    I wonder who that could be.....??!!

    I am a bit dissapointed about the BIOS not supporting unlocking better!! Sorry.....!

    I blame the Moose...!

    Actually, I don't as I am worried about incurring the wrath of a Moose who mya plummet on me!! As you know Moose are vertically challenged!!
    They have sent me a test version of a new BIOS to try.

    I'm still happy with the board, After all, I bought it for a x3 as a x3. If it unlocks it just a bonus, If not I won't worry.
    Last edited by Sputnik; 23-04-2009 at 12:25 AM.

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    Re: OCing AMD X3 720 BE

    Quote Originally Posted by Sputnik View Post
    They have sent me a test version of a new BIOS to try.
    Very pro-active on the part of J&W it seems!


    Those despicable Elk,stealing the pond weed!

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    Re: OCing AMD X3 720 BE

    Does anyone know any reason why my settings are stable in windows and the motherboard works fine after i save settings and start up but when I shut down and then switch on later it says bad checksum and resets all the settings??

    Am i missing something?
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    Re: OCing AMD X3 720 BE

    Quote Originally Posted by CAT-THE-FIFTH View Post
    Very pro-active on the part of J&W it seems!
    Well, had a go with the new BIOS today. Set the jumper to over drive, flashed BIOS to test version set ACC to auto and that's it. Board won't POST or anything after that. So have re-flashed from the back-up BIOS.

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