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Thread: XFX 4830 vmod?

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  1. #10
    IT Engineer in the making
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    Quote Originally Posted by Ket View Post
    That IC is uP6101BU8 VG(I think)8B6. Last 3 are real tough to read. Default GPU voltage is 1.25v according to the vBIOS, and memory is Samsung -HJ1A, so a vmem mod to 2.1v should see them doing 1100 easy. Bit puzzled about the GPU clocking so low with 1.25v. BIOS modded voltage to 1.17v and the GPU clocked exactly the same.. so I'd guess the GPU is actually getting 1.17v and not 1.25v.

    ED - If someone can verify where I think GPU and vmem read points are i'll get some exact numbers with my multimeter.

    Here's a pic concerning the measure-points:

    http://www.hs-augsburg.de/~ingmar_k/STA604292.jpg

    For the vmods:

    up6101:
    Pin#3 is GND and pin#6 is FB. So measure resistance between both of them. (and make sure that this is really responsible for VMEM)

    up6201:
    pin#4 is GND and pin#13 is FB. Measure resistance.
    Droop mod could possibly be done, but in the datasheet it says only for up6201A, so this might rule it out.
    Last edited by celemine1Gig; 04-25-2009 at 02:18 AM.
    Quote from one of our professors:
    "Reality is hiding in the imaginary part."

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