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Thread: 9800GTX+ Volt Mods

  1. 05-08-2009, 01:33 AM #26
    K404
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    Best way is to post up pics. Theres at least 4 PCB designs for the card. Realistically the 9800GTX PCB is reference. Its the oldest and some of the GTX+ cards use it.
    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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  2. 05-12-2009, 01:16 AM #27
    largon
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    Quote Originally Posted by Tommie_lj View Post
    stock reading 1.205V, 470ohm = 1.240, 110ohm, 1.350V.. at 1.35V the PSU cuts the power.. crappy PSU or ovp ??
    Are those idle or load voltages?
    Afaik, the reference board bump volts by ~0.05v at load.

    Btw, Leadtek has a non-ref. 9800GTX+, too... But I'm sure they have used reference design at some point. Does the PCB of your card look the one in Bjorn3D's review (see the backside shot) or like the one in the review at TPU?
    You were not supposed to see this.
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  3. 05-21-2009, 04:56 PM #28
    Tommie_lj
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    largon, sorry for late answer, but i think this is Idle measurements. i dont remember...

    the pcb is reference design, the same as the "zotac" you linked to.
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  4. 08-13-2011, 05:22 AM #29
    aussie-revhead
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    Guys, I accidentally ripped out the dot that the vmod solders to, is there any way to repair this? Or any other point I can take off instead?

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  5. 08-13-2011, 06:39 AM #30
    K404
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    For the Core?

    Is your card reference GTX?
    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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  6. 08-13-2011, 07:09 PM #31
    aussie-revhead
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    Yeah the one with the tiny dot to solder to, for vgpu mod....
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  7. 08-14-2011, 07:52 AM #32
    K404
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    I have not tried these mods, you do so at your own risk.

    The other points Largon marked here, *APPEAR* to be ok for the mod


    http://www.xtremesystems.org/forums/...8&d=1207145797
    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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  8. 08-15-2011, 05:33 AM #33
    ReggieSanchez
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    Quote Originally Posted by K404 View Post
    I have not tried these mods, you do so at your own risk.

    The other points Largon marked here, *APPEAR* to be ok for the mod


    http://www.xtremesystems.org/forums/...8&d=1207145797
    I can confirm this mod for 9800gtx
    this is what I used for 9800gtx+http://i260.photobucket.com/albums/i...ltagehowto.jpg
    http://www.heatware.com/eval.php?id=67999 = heatware
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  9. 08-15-2011, 05:33 AM #34
    ReggieSanchez
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    Quote Originally Posted by K404 View Post
    I have not tried these mods, you do so at your own risk.

    The other points Largon marked here, *APPEAR* to be ok for the mod


    http://www.xtremesystems.org/forums/...8&d=1207145797
    I can confirm this mod for 9800gtx
    this is what I used for 9800gtx+http://i260.photobucket.com/albums/i...ltagehowto.jpg
    http://www.heatware.com/eval.php?id=67999 = heatware
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  10. 08-15-2011, 06:20 AM #35
    aussie-revhead
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    reggie - my gtx+ looks nothing like yours sorry....

    K404 - what was that dot connected to? I have been probing around with a multimeter and I can find no continuity between those three extra points and where the dot was ....



    Can this Gainward be modded? The PCB looks so bare ....

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    http://cgi.ebay.com.au/ws/eBayISAPI....m=270800514219

    Last edited by aussie-revhead; 08-15-2011 at 06:26 AM.
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  11. 08-23-2011, 06:46 AM #36
    aussie-revhead
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    Guys, I know its a crappy pic but can this EVGA GTS250 be modded?

    http://img695.imageshack.us/img695/2047/1001939r.jpg

    Cheers.
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  12. 08-23-2011, 08:50 AM #37
    K404
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    Yup

    and..... oh hell, sorry... I forgot to reply to your post above Do you still need help with it?

    If you can't find a short between the pad you damaged and the 3 points around it, it might be cause the trace is gone and you're probing PCB?
    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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  13. 08-24-2011, 12:49 AM #38
    aussie-revhead
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    haha thats ok, no if this EVGA is good to mod then Im buying it, $50 pp for a bit of fun is ok.

    Regarding my pulled out dot - yeah I reckon the trace pulled out and Im just poking around in the pcb. I tried with a pin on the end of my probe too, to try and find any bit of conductivity but nothing .... doesnt matter, this evga gts250 will do the job. Will it have the same dot as my last vid card ? I cant tell by that pic so I will have a look when it arrives.

    Cheers.
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  14. 08-24-2011, 01:24 AM #39
    K404
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    Pretty sure it's a different controller and a totally different PCB layout... never mind, probably wont take long to figure out the voltmod points
    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?
    ______

    Sometimes, it's not your time. Sometimes, you have to make it your time. Sometimes, it can ONLY be your time.
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  15. 08-24-2011, 01:57 AM #40
    aussie-revhead
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    Thanks , I look forward to your assistance.

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  16. 08-25-2011, 01:05 AM #41
    Gamer
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    http://imageshack.us/f/806/gts250.jpg

    I have the same cards, would like to know how to vmod these also.

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  17. 08-25-2011, 01:26 AM #42
    K404
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    U501 (lower left) should be vGDDR

    Controller for the core is on the front
    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?
    ______

    Sometimes, it's not your time. Sometimes, you have to make it your time. Sometimes, it can ONLY be your time.
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  18. 08-25-2011, 04:49 AM #43
    aussie-revhead
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    That doesnt look like my pcb ....
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  19. 08-25-2011, 05:12 AM #44
    K404
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    Nope, totally different
    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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  20. 11-15-2011, 06:31 AM #45
    aussie-revhead
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    OK guys, can anyone show me the vmod points for an EVGA GTS250 01G-P3-1155-TR ? Do you need a pic?

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  21. 11-15-2011, 08:11 AM #46
    K404
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    Pic is good please, yea
    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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  22. 11-15-2011, 01:41 PM #47
    aussie-revhead
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    ok here it is, I have a gtx285 that needs vmod too.



    Uploaded with ImageShack.us

    Last edited by aussie-revhead; 11-17-2011 at 02:35 AM.
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  23. 12-17-2011, 11:17 AM #48
    largon
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    GTS250? GTX285?
    But...
    But this is a thread for 9800GTX+ moddage?

    Ahhh!
    *runs away in confusion*
    Last edited by largon; 12-17-2011 at 11:21 AM.
    You were not supposed to see this.
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