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MSI Afterburner - clock > 960?

Last response: in Overclocking
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September 26, 2010 7:57:04 PM

Running Win 7 64 bit on X58 with Sapphire 5770 oc'd to 950/1350, and using the latest Afterburner (v2.0.0).

It appears that in both, Afterburner and ATI Overdrive, the max core clock speed I can set it to is 960, yet some folks mention they were able to set it over 1000 and keep stable.

My questions:
  • How can I set the core clock to above the apparent ceiling of 960?
  • How do I enable voltage modification (currently locked in Overdrive & Afterburner)?
  • Your recommendations for higher (>950/1350) stable OC settings will be highly appreciated ...
    a c 189 U Graphics card
    a b K Overclocking
    September 27, 2010 1:36:10 PM

    Well, does your HD5770 allow you to change it's voltage?
    If it doesn't then you can't OC it too high, well 960 might be it's limit...
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    September 27, 2010 2:50:51 PM

    Don't know if my card allows changes to the voltage, and have no idea where to find that info (currently it is blocked in Afterburner)

    The folks that did mention on other threads changing voltage on cards that did not support it, also wrote they had to flush the card's bios and update it with an ASUS one, regardless if their card was ASUS or not, just because the ASUS bios has voltage tweaks unlocked.

    Looking for another way, potentially without having to touch the card's bios ...
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    a c 189 U Graphics card
    a b K Overclocking
    September 27, 2010 3:11:20 PM

    Yes, don't mess around with BIOS, one mistake and you can ruined your card...
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    September 28, 2010 1:52:02 AM

    i had to change the Bios to get mine past 960. but i only did it because i have a backup card in case of a bad flash.
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    September 30, 2010 7:43:05 PM

    Go into MSI afterburner files, then profiles, then MSI afterburner.
    Localise this line:
    UnlockVoltageControl=0

    change it to

    UnlockVoltageControl=1

    You can now change the voltage if your card isn't physicaly blocked (no voltage regulator).

    Also, if you check on the files, you can change the limits of the core clock, mem clock, etc.

    Hope it helps!

    As for the BIOs flash, you shouldn't do it unless you have a backup and read guide about it (duh). Bad flash is reversible however it may cause damages as any BIO flashing!
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    a b U Graphics card
    a b K Overclocking
    October 3, 2010 5:34:20 AM

    You don't have to do that in the CFG text.... The settings button in Afterburner has the option to change Voltage control in that way. Which is so much easier.

    Also even with the voltage unlock, all 5xxx series cards can't unlock voltage/don't have voltage unlocked unless it is the reference model, or models like the MSI Twin Frozr/Hawk, or the Asus DirectCU. At least I'm pretty sure
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    October 3, 2010 3:21:05 PM

    aznshinobi said:

    Also even with the voltage unlock, all 5xxx series cards can't unlock voltage/don't have voltage unlocked unless it is the reference model, or models like the MSI Twin Frozr/Hawk, or the Asus DirectCU. At least I'm pretty sure


    They just don't have any voltage regulator...


    Yes, thats the wrong thing!

    This change solved my problem:

    Go in MSI files, then MSI afterburner.

    Localise this line:
    EnableUnofficialOverclocking = 0

    Change it to:
    EnableUnofficialOverclocking = 1

    Worked for me... No need to flash the BIOs
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    a b U Graphics card
    a b K Overclocking
    October 3, 2010 7:54:06 PM

    O.O, you didn't do that before?
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    a b U Graphics card
    April 8, 2011 1:41:28 AM

    Just a nickname said:
    They just don't have any voltage regulator...


    Yes, thats the wrong thing!

    This change solved my problem:

    Go in MSI files, then MSI afterburner.

    Localise this line:
    EnableUnofficialOverclocking = 0

    Change it to:
    EnableUnofficialOverclocking = 1

    Worked for me... No need to flash the BIOs

    I have tried this and it will not let me save the config file it says access denied ???? what can I do
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    July 16, 2011 4:27:16 PM


    well u can use core voltage in 5770 .i just got a way to do it
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    !