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Thread: X800 Pro / X800 XT Voltmods?

  1. 05-06-2004, 12:42 AM #1
    bachus_anonym
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    X800 Pro / X800 XT Voltmods?

    ok, i finally got thru all R420 reviews available online and made next purchase decision. so the only thing that's left is to find voltmods for X800 Pro / X800 XT Extreme Edition.

    i believe only Driverheaven.com posted sort of hi-res pictures of X800 Pro (X800 XT seems to share exactly same layout). take a look...

    so, it apperas that vgpu mod is exaclty the same as one for 9800XT that bmg told us about here.

    but what about vmem mod? x800 series is missing one of the Intersil's ISL6522 compared to 9800xt?

    does anyone of u guys, volt mod gurus, have any idea by looking at those pics?
    Last edited by bachus_anonym; 05-11-2004 at 08:19 AM.
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  2. 05-06-2004, 02:05 AM #2
    HKPolice
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    Jumping the gun a little aren't we? lol
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  3. 05-06-2004, 06:35 AM #3
    bachus_anonym
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    hehe, i know but that would be kind of fun to have the mods ready even though the cards didn't make it to the shelves yet
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  4. 05-06-2004, 07:06 AM #4
    twiggy
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    Theres already a thread for this..
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  5. 05-06-2004, 07:48 AM #5
    bachus_anonym
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    Originally posted by twiggy
    Theres already a thread for this..
    i don't think so, man... i couldn't find anything yet unless u can point us out to it.
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  6. 05-09-2004, 07:21 AM #6
    k|ngp|n
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    What makes you say that the vgpu mod is the same as the 9800xt? Do you know this for sure?
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  7. 05-09-2004, 12:17 PM #7
    bh2k
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    well they say that it is because ATI fixed the 8 broken pipelines on the card thus making it 16, but still 4 are suppose to be non-working.
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  8. 05-09-2004, 12:43 PM #8
    bachus_anonym
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    Originally posted by k|ngp|n
    What makes you say that the vgpu mod is the same as the 9800xt? Do you know this for sure?
    i just looked at the pics...
    x800 Pro and x800 XT both have same voltage controller (Fairchild FAN5240MTC) that 9800xt has... all that area around it seems to be exactly same on x800 and 9800xt.

    that would probably mean that vgpu mod is to be done same way... that's what this thread is for - to confirm it and find vmem mod as well...

    there're good pics... we just need to look at them... mod's can be ready even before cards are out on the market could be fun...
    Last edited by bachus_anonym; 05-11-2004 at 08:20 AM.
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  9. 05-11-2004, 01:04 AM #9
    L337 M33P
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    There are another 2 controllers that look like VDDQ/VDDR - on the back end of the card there are 2 ISL6522CB chips. These are easy to mod.
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  10. 05-11-2004, 03:53 AM #10
    zombie
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    But where ist the Vmem Chip ??
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  11. 05-11-2004, 07:25 AM #11
    k|ngp|n
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    I got my card yesterday.....
    Yes, the layout looks very much like the xt. the resistors for gpu mod seems the same. It also has res 1596 in same spot too. I wonder if the over current mod is the same?
    Im going to see what it does stock first on air and vaporcooling, then I'll probably go for it and mod it up. I'll post back either way if it works or not. I'm probably going to try first gpu mod, then vddr.
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  12. 05-11-2004, 07:27 AM #12
    k|ngp|n
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    There are another 2 controllers that look like VDDQ/VDDR - on the back end of the card there are 2 ISL6522CB chips. These are easy to mod.
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  13. 05-11-2004, 08:03 AM #13
    bachus_anonym
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    great k|ngp|n, let us know as soon as u get your solder iron...

    btw, can u post good hi-res pics of this card as soon as u have some time?
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  14. 05-11-2004, 08:13 AM #14
    oc-rookie
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    The memory modules on the top edge have been lowered closer to the core somewhat. Could be a challenge for some air coolers, and water blocks hitting ram sinks.....
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  15. 05-11-2004, 04:29 PM #15
    BuickBeast
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    where can I see some close up pics of the card?
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  16. 05-11-2004, 05:09 PM #16
    twiggy
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    Originally posted by bachus_anonym
    i don't think so, man... i couldn't find anything yet unless u can point us out to it.

    My bad. It was Tom asking about the 6800 vmods.
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  17. 05-11-2004, 05:31 PM #17
    k|ngp|n
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    Last edited by k|ngp|n; 05-12-2004 at 10:00 AM.
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  18. 05-11-2004, 05:45 PM #18
    oc-rookie
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    memory modules are staggered as well.
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  19. 05-12-2004, 09:42 AM #19
    k|ngp|n
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    Well, I can confirm that the vgpu mod is same for x800


    I am using the same reading point as on xt too.
    Just getting started on core......so far, Im at 680/529 wiTH 1.6V GPU
    Those clocks got me almost 32000 3dmark01' with 2.87ghz 3400+.


    The memory on this card must suck. On air, the best I could do was 510 on mem . On r507, it got to 540 and crapped out. I'm bummed about that. I definitely need to do the vdd mod on this thing. I see guys getting up to 560-570 mem clocks with the stock hsf.
    IM going to see what the mem can do today...should increase nature and drags quite a bit judging from the other scores.
    Last edited by k|ngp|n; 05-13-2004 at 02:54 AM.
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  20. 05-12-2004, 10:01 AM #20
    TyphooN
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    sweet.. i cant wait till i can get one.. sometime in the summer when i have money. i hope theres a way to make a pro into an xt so i can save money.. im sure theres a way to unlock the extra pipelines.
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  21. 05-12-2004, 10:30 PM #21
    gouda96
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    ...

    Kingpin, why aren't you up on the orb yet? When I checked a few hours ago 32k would have put you in 3rd

    Originally posted by CircuitBreaker8
    So I asked myself, is OCing the videocard really worth it?
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  22. 05-13-2004, 03:07 AM #22
    k|ngp|n
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    mem mod

    Kingpin, why aren't you up on the orb yet? When I checked a few hours ago 32k would have put you in 3rd
    I just posted a score this morning. I am pretty sure ,I will go alot farther once I get this vdd mod done.
    Hmmm...now which one do I use for mem mod? Neither? I wonder if reading point for vmem is the same....

    anyone know what the stock mem volts are on this card so I know what to look for?
    Last edited by k|ngp|n; 05-13-2004 at 05:46 AM.
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  23. 05-13-2004, 07:27 AM #23
    bachus_anonym
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    x800 has Samsung 2ns GDDR3 DRAM memory labeled K4J55323QF-GC20.
    according to the datasheet, vdd and vddq are 2.0v, so poke around looking for that value +/- 0.1v.
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  24. 05-13-2004, 07:40 AM #24
    oc-rookie
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    Originally posted by k|ngp|n

    The memory on this card must suck. On air, the best I could do was 510 on mem . On r507, it got to 540 and crapped out. I'm bummed about that. I definitely need to do the vdd mod on this thing. I see guys getting up to 560-570 mem clocks with the stock hsf.
    IM going to see what the mem can do today...should increase nature and drags quite a bit judging from the other scores.
    Nice k|ngp|n!!! Hopefully your ram will better with volts. I have gotten mine up to 565 thru some tests no sinks, on air. Great job dude!!



    Have you run into overvolt protection yet?
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  25. 05-13-2004, 08:13 AM #25
    k|ngp|n
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    Have you run into overvolt protection yet?
    Not yet. I got it up to 1.68 volts so far and still running like a champ. This mem is truly horrible on this card. It will not go past 540....even on the r507. I am seeing such good mem overclocks with stock hsf from others..I might exchange this one while its still working
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