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Thread: 8800s OVP Mod ......

  1. #1
    k|ngp|n/Sham my brothers hipro5's Avatar
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    Talking 8800s OVP Mod ......

    Did you expected it?.......Get it......THAT simple and as promised......

    This picture includes the VGPU and the OVP of the 8800GTX and 8800 Ultra VGAs......8800GTS is SIMILAR but in anoter position of the PCB......

    CREDITS for the VGPU Mod goes to Shamino and vr-zone.....




    Here is the OVP Mod in a closer look.....





    ......and here's an alternative method for more "hardcore" people.....







    By doing so, you will NOT ENCODE this f(l)uken VGA's shut down and core powering down problem any more.....
    You'll ONLY have to deal of how much VGPU you will feed it until it produses Core artifacts during a bench....
    IF you get a "freezing" during a bench, then your VGA's core CAN'T go higher than that......


    Happy NVIDIA VGA Overclocking and DON'T pass my scores.....


    .
    INTEL PWA FOR EVER

    Dr. Who my arss...

    .........



  2. #2

  3. #3
    Xtreme Enthusiast DMH's Avatar
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    Veryy good,you don't know the exact position for the GTS???

  4. #4
    Xtreme Enthusiast harleybro's Avatar
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    Thank you Hipro!!!!!!!!!!! Is it possible to use a 50Kohm trimmer. I take it the resistance you measure is across the resistor with the trimmer soldered in place?


  5. #5
    k|ngp|n/Sham my brothers hipro5's Avatar
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    Quote Originally Posted by DMH View Post
    Veryy good,you don't know the exact position for the GTS???
    Yes I know it but I have to picture it first.......
    I'll do it tomorrow.....


    Quote Originally Posted by harleybro View Post
    Thank you Hipro!!!!!!!!!!! Is it possible to use a 50Kohm trimmer. I take it the resistance you measure is across the resistor with the trimmer soldered in place?
    Yes you can.....This will give you about 5.03 measuring RED POINT to ground when the trimmer is FULLY "opened" (at 50KOhms)....

    Quote Originally Posted by eva2000 View Post
    Sweet. i know a few Aussies who have been waiting for this
    I know at LEAST ONE.....dinos.....
    Last edited by hipro5; 10-13-2007 at 08:38 AM.
    INTEL PWA FOR EVER

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  6. #6
    Xtreme Legend dinos22's Avatar
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  7. #7
    Xtreme Guru largon's Avatar
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    Corresponding resistor on 8800GTS:
    You were not supposed to see this.

  8. #8
    Turkey Man T_M's Avatar
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    Hipro5, thank you master
    Will test it today

  9. #9
    ODOC
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    You are doing it again.

    Good work.

    Keep pushing it.

  10. #10
    k|ngp|n/Sham my brothers hipro5's Avatar
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    Thanks guys.....

    For the 8800GTS is the resistor which largon pointed out.....

    You can trimm the resistor to show you down to 4.7 - 4.8KOhms....
    INTEL PWA FOR EVER

    Dr. Who my arss...

    .........



  11. #11
    I am Xtreme massman's Avatar
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    Thank you for sharing, Hipro
    Where courage, motivation and ignorance meet, a persistent idiot awakens.

  12. #12
    Nice Hardware!!! SF3D's Avatar
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    Thanks Hipro! Good attitude like always

    Have to do these as soon as possible...
    You are as good as your samples are!

  13. #13
    Wanna look under my kilt? K404's Avatar
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    Im expecting more ORB abuse soon

    Everyone needs to go back and bench again
    Quote Originally Posted by T_M View Post
    Not sure i totally follow anything you said, but regardless of that you helped me come up with a very good idea....
    Quote Originally Posted by soundood View Post
    you sigged that?

    why?
    ______

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  14. #14
    Xtreme Legend dinos22's Avatar
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    Quote Originally Posted by massman View Post
    Thank you for sharing, Hipro
    this is a pretty big deal isn't it and he delivered
    Team.AU
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  15. #15
    X.I.P. Harshal's Avatar
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    Thanks Hipro!! This is for others as I am not in VMODs yet!!
    Yeah.. I reallly need to get into this game of soldering first & then to modding without killing stuff.

    p e a c e

  16. #16
    Xtreme Guru largon's Avatar
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    Just did the mod "hardcore" style:

    Desoldered the 5.2KOhmer then replaced with a 4.7KOhmer...
    It seems vGPU dropped by ~0.1v consequently - but nothing a little poking of the vGPU mod will not fix though.
    Will report if it helps OC'wise.
    You were not supposed to see this.

  17. #17
    Only Extreme Need Apply
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    wow this is big news! didnt know of it till the Aussie/s told me about it then i headed this way to find some hipro5 action! and i found it! coolness! will be doing this for my ultra when it comes back from RMA AFTER THREE.. yes 3... yes THREE months of waiting.

    thanks hipro5!
    Buildin

  18. #18
    Turkey Man T_M's Avatar
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    Hipro, can you please share the theory behind this mod? What is the resistor connected to etc?

  19. #19
    I am Xtreme massman's Avatar
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    Quote Originally Posted by dinos22 View Post
    this is a pretty big deal isn't it and he delivered
    Yeap, I don't own any 8800-series card, though I'm pleased he shared the mod.
    Where courage, motivation and ignorance meet, a persistent idiot awakens.

  20. #20
    Xtreme Legend giorgioprimo's Avatar
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    Thanks George
    Sorry for my bad english, I'm from italy

  21. #21
    Xtreme Guru largon's Avatar
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    Well this is odd.
    Tested voltage stability with 3DMark06 on gaming stable freqs of 729/1890/2160:
    1.36v (1.33v after droop): OK
    1.54v (1.51v after droop): instant GPU powerdown
    You were not supposed to see this.

  22. #22
    Xtreme Enthusiast wittekakker's Avatar
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    Seems to be working great here, just ran 1.6V 3D, that is 1.7V 2D with my 8800GTS

    Thx for sharing Shamino!

    EDIT: hmm, still can't beat 720/1600/1040, protection kicks in at higher clocks :/
    Last edited by wittekakker; 10-14-2007 at 08:52 AM.

  23. #23
    Turkey Man T_M's Avatar
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    George, I have soldered a 100k on my 8800 Ultra.
    As i trim, it starts from high resistance and goes down.
    Once i reach ~7.57k it suddenly jumps down to ~3.362k.

    Is the objective to raise the resistance across that resistor? If so, is 7.6k to ground OK?

  24. #24
    Xtreme Guru largon's Avatar
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    Quote Originally Posted by wittekakker View Post
    Thx for sharing Shamino!

    Only the vGPU mod (which has been around for ages already) is from Shamino, OVP is all Hipro's handwriting.

    Too bad my card has not gained from either mod, the vGPU nor the OVP.
    Stuck at 729MHz no matter the voltage.
    You were not supposed to see this.

  25. #25
    k|ngp|n/Sham my brothers hipro5's Avatar
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    Quote Originally Posted by largon View Post
    Well this is odd.
    Tested voltage stability with 3DMark06 on gaming stable freqs of 729/1890/2160:
    1.36v (1.33v after droop): OK
    1.54v (1.51v after droop): instant GPU powerdown
    Maybe it's shuts down from over temperature protection or something....

    Quote Originally Posted by T_M View Post
    George, I have soldered a 100k on my 8800 Ultra.
    As i trim, it starts from high resistance and goes down.
    Once i reach ~7.57k it suddenly jumps down to ~3.362k.

    Is the objective to raise the resistance across that resistor? If so, is 7.6k to ground OK?
    Are you sure you have soldered to the same resistor?......If you have soldered an 100K trimmer, even fully opened, it shouldn't show you more than 5.12K.....

    Quote Originally Posted by wittekakker View Post
    Seems to be working great here, just ran 1.6V 3D, that is 1.7V 2D with my 8800GTS

    Thx for sharing Shamino!

    EDIT: hmm, still can't beat 720/1600/1040, protection kicks in at higher clocks :/
    Same here too - Maybe it's shuts down from over temperature protection or something....
    INTEL PWA FOR EVER

    Dr. Who my arss...

    .........



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