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Thread: *** Official Radeon HD5800 Series Overclocking Thread ***

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  1. 02-11-2010, 06:04 AM #1
    IN7OX
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    Quote Originally Posted by Particle View Post
    Strange stuff. I can't seem to adjust vcore anymore now that I'm on 10.1. The option is grayed out in Afterburner.

    Anyhow, if I don't touch the voltage I'm apparently stable to at least 800/1150 on this 5850. My previous results of crashing instantly at 850 using even 1.25V seem odd now. Any ideas what might be going wacky? I'm also miffed why I can't get to at least 1250 memory at default voltage when that's the stock rating for these memory chips. Are they fed less voltage than whatever they're rated at by default?
    i also have this problem flashed with the asus bios and cant adjust voltage its greyed out also
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  2. 02-11-2010, 10:14 AM #2
    IN7OX
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    had to use asus smartdoctor to change me voltage
    got it running at 1010mhz gpu 1300mhz mem at 1.25volts on stock cooling
    got ek full block coming so will test higher clocks when thats fitted

    one strange problem im getting i have an onkyo nr906 connected via hdmi for my sound but when i turn it on as extended desktop with any clock over stock i get graphic glitches on me desktop and games when i turn the amp back off it stops
    must be a driver issue
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  3. 02-11-2010, 03:23 PM #3
    purecain
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    Quote Originally Posted by IN7OX View Post
    i also have this problem flashed with the asus bios and cant adjust voltage its greyed out also
    just edit the voltages in rbe... no reason to mess around with 3rd party apps then...
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  4. 02-11-2010, 11:52 PM #4
    IN7OX
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    is there a guide for using rbe looks a bit complicated
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  5. 02-12-2010, 06:50 AM #5
    Particle
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    Quote Originally Posted by purecain View Post
    just edit the voltages in rbe... no reason to mess around with 3rd party apps then...
    Does that actually work? As in, if I set the voltage higher in RBE than 1.0875V it'll actually work at that higher voltage? I wasn't sure where the limiter lies.
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  6. 02-12-2010, 08:14 AM #6
    w4tch0
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    From what I know, for 5850's the voltage editing does work, but you absolutelly should not edit the voltages in "Clock info XX" columns. Use the "GPU registers" button and only edit voltages there. And I am not sure if 5700's are supported at all.
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