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Thread: ncrease nvidia driver overclock limit?

  1. #1
    YUKIKAZE arthurleung's Avatar
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    ncrease nvidia driver overclock limit?

    Got a 7900GT and the driver wouldn't let me set memory clock frequency over 840Mhz.

    What can I do to increase the limit? I think my memory should be able to reach a lot higher than this.

    Cheers
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  2. #2
    Flat cap, Whippets, Cave. Clunk's Avatar
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    rivatuner? careful with that memory though

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    How did you get 840? My slider only goes up to 800.

  4. #4
    Moderator chuckskull's Avatar
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    840mhz is 1680mhz in DDR terms which is about the absolute limit for 7900GT's.. Thats way above the reference and still a big chucnk faster than most OC'ed cards.

    The reference for that board is 1320mhz. a 360mhz OC is plenty IMO.

  5. #5
    YUKIKAZE arthurleung's Avatar
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    Quote Originally Posted by chuckskull
    840mhz is 1680mhz in DDR terms which is about the absolute limit for 7900GT's.. Thats way above the reference and still a big chucnk faster than most OC'ed cards.

    The reference for that board is 1320mhz. a 360mhz OC is plenty IMO.
    The default of my card was 700(1400) Why run *only* at 840 when I could go higher than that

    Played HL2:EO for a few hours without any sign of trouble.
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  6. #6
    blueball
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    Quote Originally Posted by arthurleung
    The default of my card was 700(1400) Why run *only* at 840 when I could go higher than that
    Because you got lucky, keep trying and you'll fry the card or make it unstable.

  7. #7
    YUKIKAZE arthurleung's Avatar
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      • CPU:
      • Intel Core2Quad Q9550 3.6Ghz 1.2V
      • Memory:
      • A-Data DDR2-800 2x2GB CL4
      • Storage:
      • 4x1TB WD1000FYPS @ RAID5 3Ware 9500S-8 / 3x 1TB Samsung Ecogreen F2
      • Graphics card(s):
      • GeCube HD4870 512MB
      • PSU:
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      • Case:
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      • Operating System:
      • Windows Server 2008 Standard
      • Monitor(s):
      • Dell Ultrasharp 2709W + 2001FP
      • Internet:
      • Be*Unlimited 20Mbps
    Used rivatuner and managed to get my card up to 560/900(1800)
    Workstation 1: Intel i7 950 @ 3.8Ghz / X58 / 12GB DDR3-1600 / HD4870 512MB / Antec P180
    Workstation 2: Intel C2Q Q9550 @ 3.6Ghz / X38 / 4GB DDR2-800 / 8400GS 512MB / Open Air
    Workstation 3: Intel Xeon X3350 @ 3.2Ghz / P35 / 4GB DDR2-800 / HD4770 512MB / Shuttle SP35P2
    HTPC: AMD Athlon X4 620 @ 2.6Ghz / 780G / 4GB DDR2-1000 / Antec Mini P180 White
    Mobile Workstation: Intel C2D T8300 @ 2.4Ghz / GM965 / 3GB DDR2-667 / DELL Inspiron 1525 / 6+6+9 Cell Battery

    Display (Monitor): DELL Ultrasharp 2709W + DELL Ultrasharp 2001FP
    Display (Projector): Epson TW-3500 1080p
    Speakers: Creative Megaworks THX550 5.1
    Headphones: Etymotic hf2 / Ultimate Ears Triple.fi 10 Pro

    Storage: 8x2TB Hitachi @ DELL PERC 6/i RAID6 / 13TB Non-RAID Across 12 HDDs
    Consoles: PS3 Slim 120GB / Xbox 360 Arcade 20GB / PS2

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