Can't Overclock?

Discussion in 'Videocards - NVIDIA GeForce' started by Spyd3r, Jun 1, 2005.

  1. Spyd3r

    Spyd3r Member

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    GPU:
    leadtek 6800nu
    Every time i try to overclock i get this message:

    [​IMG]
    Also, i unlocked all the pixel and vertex shaders, would that effect me overclocking?
     
  2. Billabong

    Billabong Ancient Guru

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    GPU:
    Asus 9800GTX
    your core is too low for a 6800 thats why it failed that test try up around 450/1200 mark

    EDIT: click default button then work up in 5 mhz on the core and .10 on the mem until you get a stable oc
     
    Last edited: Jun 1, 2005
  3. Spyd3r

    Spyd3r Member

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    GPU:
    leadtek 6800nu
    325mhz is the default
     
  4. Kain

    Kain Ancient Guru

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    Thats low for a 6800.
    Are you sure you installed your new drivers and uninstalled and cleaned your old drivers?
     

  5. Spyd3r

    Spyd3r Member

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    GPU:
    leadtek 6800nu
    I have a 6800nu, thats the right speeds. Also, when i lock the pixel and vertex shaders up i can overclock but when i unlock them again my speeds go back to default and i can't overclock anymore
     
  6. Glutamato

    Glutamato Member

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    GPU:
    MSI NX6800GT-T2D256E
    I have the same problem with an 5200 FX and was due to the mems
    If I decreased the mem´s clock (very decreased )I could increase the core clock.
    Strange but true, it may be for the quality of the mems, or they have bad refrigeration, or there is a curse over us, I don´t know but that was my problem.
    I solved it downloading the detonator 4286 but with this drivers, I saw artifacts in the screen and the benchmarcks and games went like shots (when I OC the mems of the videocard)
     
  7. col888

    col888 Active Member

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    GPU:
    6800 Flashed to GT 16xP 6xVS @ 410C 920M w/ VF700
    325Mhz is right for your core

    I had the same problem with my asus 6800,

    open rivatuner and go to power user, then click the plus sign near \nvidia\overclocking and insert a 1 next to disableinternalclocktest, then tick the box to the left, now try to overclock using rivatuner.

    If this does not work then u probably have the same problem as me, however, u will be able to overclock by editing ur bios file using NiBiTor and vgatest, I can give u proper instructions on how to use these utils if u like, but I would not recommend a bios flash unless ur pretty good with pc's and u are aware of the risk.
    just reply if u need anymore help.
     
  8. Jelle Mees

    Jelle Mees Banned

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    GPU:
    8800GT 512MB 684Mhz/1836Mhz/2088Mhz
    Very simple...your VGA doesnt get enough power.
    It's recommended to have 450W
     
  9. col888

    col888 Active Member

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    GPU:
    6800 Flashed to GT 16xP 6xVS @ 410C 920M w/ VF700
    Iv got a 450w power supply, and I still had the same exact problem.
     
  10. Spyd3r

    Spyd3r Member

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    GPU:
    leadtek 6800nu
    I already tried that thing with rivatuner and it didn't work :mad: . Also, i dont want to mess around with the bios, but thanks anyway.
     

  11. Jelle Mees

    Jelle Mees Banned

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    GPU:
    8800GT 512MB 684Mhz/1836Mhz/2088Mhz
    But did you looked if the card needed an extra power-plugin?

    I have an AGP 6600 and it needs more power coming from another cable.
     
  12. col888

    col888 Active Member

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    GPU:
    6800 Flashed to GT 16xP 6xVS @ 410C 920M w/ VF700
    my card needs just 1 molex
     
  13. Jelle Mees

    Jelle Mees Banned

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    GPU:
    8800GT 512MB 684Mhz/1836Mhz/2088Mhz
    Is that how you call it? A molex?
     
  14. skl

    skl Member Guru

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    GPU:
    Sapphire 4850 TOxic
    Maybe he calls it so because it is molex.
     
  15. desdick

    desdick Master Guru

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    GPU:
    nVidia Geforce 6800 PCIe 256mb
    Re: Re: Can't Overclock?

    NONSENSE! POPPYCOCK! I have a 350w PSU and I'm able to get it to 430/895 stable in benches and 420/890 stable in games!!! All on a dell 350w generic PSU!!!
     

  16. Homeless

    Homeless Master Guru

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    GPU:
    EVGA GTX 275
    Yes, since you have unclocked the vertex/pipes, overclocking cannot be done normally. I suggest flashing your bios with the same one but with higher clock settings if you wish to overclock.
     
  17. VAs0ulja

    VAs0ulja Master Guru

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    GPU:
    BFG 6800 OC 128mb @ 370/745 (16x1,6
    No its not, thats standard clock speeds on a regular nVidia Geforce 6800, because i got a BFG Tech 6800 128mb OC, and its suppose to be overclocked, hence the OC, and it came at 350/700, from its default of 325. Thats what it said on the box, but most brand name 6800's come a little OC'd on the core. He's probably just got a generic or an off brand name, or probably the vendor's just left it at stock speeds. But i dont know why it would be doing that, only other option you have, is to flash bios.
     
  18. omarmakki

    omarmakki Ancient Guru

    Messages:
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    GPU:
    Inno3D GeForce 6800 (12x1,6vp)
    stock speeds for a 6800 are 325/700 which is correct...

    -check and tell us what psu do u have and how many amps on the +12v rail it has.
    -make sure the molex connector is plugged.
    -try changing drivers
    -if all of this didn't work, disable internal driver test.
     

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