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Old 2 Weeks Ago   #1 (permalink)
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Default Modding 4850

Ok I never got a chance to OC my old 4850 which is in my second build. Anyways CCC limit OC the card, the top I can go is 650mhz core from stock 625mhz. The card is powercolor 4850 with 512mb http://www.newegg.com/Product/Produc...82E16814131162. And my temp never goes above 64c.

I have tried to flash the vbios with other powercolor bios, but with any bios I flash, I can't seem to get video drivers installed . I tried the latest RBE from techpowerup to edit bios, but getting same error.

Anyone who succesfully removed OC limit on this card please help.
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Old 2 Weeks Ago   #2 (permalink)
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Just use RivaTuner, that has no limit.
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Old 2 Weeks Ago   #3 (permalink)
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Yes do the above thing and once u find your maximum stable OC then use RBE to edit your biops in these values so u wont need any software after that!

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Old 2 Weeks Ago   #4 (permalink)
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CCC limited me to 700Mhz on my HD4850s. Does the powercolor card really limit it a 25MHz max OC? Wow...yeah I definately would play wuth those BIOS.

I was able to use RBE to change the max...but it capped out at 705MHz for stability. The other 4850 capped at 675MHz no matter what I used for voltage. So i just flashed back to the original bios on both with the exeption of the 100% fan speed fix.
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