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Thread: OCing X1900GT

  1. 05-12-2006, 09:45 AM #1
    zbogorgon
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    OCing X1900GT

    I got my hands on latest Ati card 1900GT did some 05 and 06 benches.
    Yonah platform, GPU on deafult.



    The card was running really hot, 75°C, on stock cooler%freqs so ocing without extra cooling is almost absurdity . Ati Tool started showing artifacts at 625/745 so did a 05 bench at 620/720


    The card has R580 core and 1.4ns rams, so there is a question if a card is unlockable.
    Anyone has any ideas why it could or couldn't be. I compared card with 1900XT and the only difference is that it has 6 voltage regulators or what they are instead of 7 on 1900XT/XTX.

    I am going to try to flash if sb could provide me a 1900XT 256mb bios. I was unable to find it.
    OC-Lab.si!!
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  2. 05-12-2006, 10:03 AM #2
    einCe
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    very nice results how much do these cost again?

    $350-$399
    Last edited by charlie; 05-13-2006 at 07:42 AM.
    Lanparty Ultra-D DEAD|REVIVED
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    Powercolor X1900XT 725/873
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    Quote Originally Posted by afireinside
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  3. 05-12-2006, 10:06 AM #3
    higgins
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    Nice results indeed.

    How does that Yonah compare to a 3ghz san diego?
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  4. 05-13-2006, 12:22 PM #4
    zbogorgon
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    Did some ocing with a bit better cooling,
    ORB Linky
    now i have to figure out how to mod 1900xt bios, anyone any idea?
    OC-Lab.si!!
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  5. 05-13-2006, 01:36 PM #5
    Shadowmage
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    Try to flash to X1900 AIW 256MB BIOS.
    oh man
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  6. 05-13-2006, 02:01 PM #6
    zbogorgon
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    where to get it?
    OC-Lab.si!!
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  7. 05-13-2006, 04:50 PM #7
    Shadowmage
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    ask someone on XS with an X1900 AIW
    oh man
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  8. 05-13-2006, 05:28 PM #8
    n00b 0f l337
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    Does it have the same PCB and levels of power?


    If you have a cooling question or concern feel free to contact me.
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  9. 05-14-2006, 12:10 AM #9
    zbogorgon
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    pcb is the same as 1900XT/XTX, core is R580, 1,4ns rams, only difference (beside 256mb) is 6 voltage regulator insted of 7 on 1900XT
    if that what you mean by levels of power?
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  10. 05-16-2006, 06:22 AM #10
    phobos
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    Is there a difference between the 256MB and 512MB X1900XT bios?

    You probably know that URL but anyway, you can find the 512MB bios here: http://www.techpowerup.com/bios/

    I forgot: Are there any visible differences on the chip package? Resistors or cuts?
    Last edited by phobos; 05-16-2006 at 06:24 AM.

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  11. 05-16-2006, 10:10 AM #11
    tratoni77
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    Where are you see a bios of X1900XT 256 Mo ?
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  12. 05-16-2006, 10:17 AM #12
    licken
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    Think the six voltage regulators is six and not seven just because its 256mb ram and not 512mb. Just a thought.
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  13. 05-16-2006, 10:26 AM #13
    phobos
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    Quote Originally Posted by tratoni77
    Where are you see a bios of X1900XT 256 Mo ?
    I don't see a 256MB Bios there either, that's why I'm asking if there's a difference between the 512MB and 256MB BIOS. I don't know if the BIOS determines the memory size by checking some hardware stuff or by reading a flag that's actually included somewhere in the firmware.

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  14. 05-16-2006, 11:23 AM #14
    Deathscyth
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    Hi,

    Have you try to change the bios with Rabit 2.0a?
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  15. 05-16-2006, 11:44 AM #15
    MrSlacker
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    When will these be on sale?
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  16. 05-17-2006, 04:14 AM #16
    higgins
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    Quote Originally Posted by MrSlacker
    When will these be on sale?
    June - July here in Sweden at around the same price as an 7900 GT. I'm surprised there isn't more fuss about it already in the forums.

    Saw that charlie also got one, but no more benches than with his buget system... weird.
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  17. 05-17-2006, 04:22 AM #17
    zbogorgon
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    Rabit has memory size modifying disabled for 1900XT/XTX bioses. I have talked to Rabit author, he said this function is experimental and it my not work at all. So he moddifed my bios for 1900Gt to 16/48, but it didn't work, I still got 12 pipes in Ati Tool and still same performance. Tried changing Device ID, still no go.
    The only other way is to try to flash with 1900 AIW bios or if sb can modify 1900XT memory size to 256mb.
    OC-Lab.si!!
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  18. 05-17-2006, 05:43 AM #18
    charlie
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    yeah, those are nice. Mine was $359 at Best Buy.
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  19. 05-17-2006, 07:06 AM #19
    dimcar
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    tried AIW bios, but no go... blank screen.. AIW BIOS is a bit different in size... so flashed back the original bios...
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  20. 05-19-2006, 03:57 PM #20
    WiCKeD
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    Quote Originally Posted by dimcar
    tried AIW bios, but no go... blank screen.. AIW BIOS is a bit different in size... so flashed back the original bios...
    I tried also... Anyway to recover when flashrom can't find your adapter or am I FUBAR?

    These are going to for fair prices only on eBay.
    Last edited by WiCKeD; 05-19-2006 at 04:00 PM.
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  21. 05-19-2006, 05:26 PM #21
    Blacklash
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    Flippin' nice CPU score in '06. I can't wait for Conroe. I only see 2148 with this CPU.
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  22. 05-19-2006, 11:38 PM #22
    dimcar
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    Quote Originally Posted by WiCKeD
    I tried also... Anyway to recover when flashrom can't find your adapter or am I FUBAR?

    These are going to for fair prices only on eBay.

    You need atiflash 3.15!
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  23. 05-20-2006, 07:49 AM #23
    WiCKeD
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    Quote Originally Posted by dimcar
    You need atiflash 3.15!
    Thanks! I will certainly give it a shot. Tried 3.09 on tPU! Card is identified when I boot into XP with a PCI card, but system locks up when I try to flash using ATIWinflash.
    Current system:
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  24. 05-21-2006, 01:00 PM #24
    lewdvig
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    I have an AIW - submitted the BIOS to techpowerup a while back.

    I can provid eit if you need it.
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  25. 05-28-2006, 05:14 PM #25
    Shadowmage
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    Looks like AIW isn't working... that really sucks

    Maybe contact Rivertuner author? Since he worked on unlocking pipes for NVIDIA, maybe he has done some research into the same for ATI
    oh man
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