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Thread: ATI 38xx BIOS editor (Finally!)

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  1. #1
    Registered User
    Join Date
    Oct 2007
    Posts
    43
    Quote Originally Posted by fornowagain View Post
    Flashed mine back as well, found the modified bios stopped the ATi overdrive from working for some odd reason.
    Same here, Overdrive didn't work when I modified BIOS. I have Club3D HD3850 256MB, with reference cooler.

    Hmmm, I flashed with Vcore set to 1,327 but I can't get GPU stable at more than 750MHz. At default Vcore (1.21V) I get 730MHz stable. So it's just 20MHz. I doubt actual Vcore is 1.327V, and now I see it's just 1.24V? That explains why I got just 20MHz and why the temperature stayed almost the same.

    I saw some of you entered value manually, but that doesn't work for me.

    OT:
    A question for lowtcell: how did you get a limit of 900MHz for GPU in CCC?

  2. #2
    Xtreme Member
    Join Date
    Dec 2007
    Posts
    285
    Quote Originally Posted by SRV View Post
    Same here, Overdrive didn't work when I modified BIOS. I have Club3D HD3850 256MB, with reference cooler.

    Hmmm, I flashed with Vcore set to 1,327 but I can't get GPU stable at more than 750MHz. At default Vcore (1.21V) I get 730MHz stable. So it's just 20MHz. I doubt actual Vcore is 1.327V, and now I see it's just 1.24V? That explains why I got just 20MHz and why the temperature stayed almost the same.

    I saw some of you entered value manually, but that doesn't work for me.

    OT:
    A question for lowtcell: how did you get a limit of 900MHz for GPU in CCC?
    I used HIS IceQ3 Turbo bios edited with the editor app. If you look at the screen cap of GPU-Z, you see it reports the card as a HIS now (my card is Sapphire). I only raised Vcore to 1.241 and CCC still works with that. All other Bios I tried either killed CCC or left max OC @ 720.
    ASUS P5E X38 (RF 0701 Bios) Q9550@3.51 1.248v, Xigmatek S1283, 8GB GSkill DDR2-8000@990 1.94v, XFX HD5870,
    2 - Seagate 7200.10 320G RAID0, Seagate 7200.11 500G, Seagate 7200.12 1.5TB
    Lian-Li (Rocketfish) Full Tower, Silverstone Zeus 750Watt, Vista Ultimate x64 SP1, Dell U2410

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