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Thread: the highest you reached with 6800GT @ "normal" cooling (air, water - NOT phase, etc.)

  1. #1
    Xtreme Enthusiast p4z1f1st's Avatar
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    the highest you reached with 6800GT @ "normal" cooling (air, water - NOT phase, etc.)

    so guys....i'll sell my AGP-6800Ultra and want to settle on a SLI-system....but i won't buy 2x 6800Ultra's but 2x 6800GT's

    so, i'll cool both cards with water....and mod the BIOS' to 1.5V VGPU

    but i only know, what's the average-oc'ing of ultras....could you all guys who has a 6800GT tell me, how far you can go 100% stable (not benchstable - i mean, when you can play f.e. FarCry forever ) on water (air-results are OK, too)

    i just want to estimate, how far i'll probably go

    ----- AMD K6-2 300 "Chomper" xxxxx xxxx xxxx /// 300 MHz @ 2,200 V -----
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    ----- AMD Athlon XP-M 2500+ "Barton" AQXEA 0327 UPMW /// 2450 MHz @ 1,850 V -----
    ----- AMD Athlon XP-M 2600+ "Barton" IQYHA 0401 XPMW /// 2500 MHz @ 1,750 V -----
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  2. #2
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    Wondering the same, which brand is the way to go also.

  3. #3
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    If gainward had some PCI-E Golden Samples out, those would be the cream of the crop, and as you prolly know, a GT at Ultra speeds is faster, I think XFX has some PCI-E 6800's and a few other manafactures

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    Quote Originally Posted by JasonDTM
    If gainward had some PCI-E Golden Samples out, those would be the cream of the crop, and as you prolly know, a GT at Ultra speeds is faster, I think XFX has some PCI-E 6800's and a few other manafactures
    I read someplace that it was the bios that made the GT faster than the Ultra at the same clocks, maybe try a GT bios with the ultra? If I recall correctly it improves 3dmark05 by like 150pts, nothing to sneeze at for a bios flash

  5. #5
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    i run 422/1150----- 24/7 on my EVGA 6800gt (stock cooling, stock everything)

    the only additional cooling is two Smartfan II's blowing at it (one temp probed, one i adjust)

  6. #6
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    Quote Originally Posted by novagamer
    I read someplace that it was the bios that made the GT faster than the Ultra at the same clocks, maybe try a GT bios with the ultra? If I recall correctly it improves 3dmark05 by like 150pts, nothing to sneeze at for a bios flash
    The GT is faster at Ultra speeds due to the memory timings, but the Ultra has more overhead to overclock ect.

  7. #7
    Xtreme Enthusiast p4z1f1st's Avatar
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    guys, until now, just Playful_Buffalo answered my question like i wanted to

    btw Playful_Buffalo: what's that for a chick as your avatar?

    ----- AMD K6-2 300 "Chomper" xxxxx xxxx xxxx /// 300 MHz @ 2,200 V -----
    ----- AMD Athlon XP 1700+ "Thouroghbred B" JIUHB 0306 MPMW /// 2400 MHz @ 1,900 V -----
    ----- AMD Athlon XP-M 2500+ "Barton" AQXEA 0327 UPMW /// 2450 MHz @ 1,850 V -----
    ----- AMD Athlon XP-M 2600+ "Barton" IQYHA 0401 XPMW /// 2500 MHz @ 1,750 V -----
    ----- AMD Athlon 64 3000+ "Newcastle CG" xxxxx 0418 WPMW /// 2600 MHz @ 1,600 V -----
    ----- AMD Athlon 64 3200+ "Winchester D0" xxxxx 0433 SPMW /// 2750 MHz @ 1,616 V -----

    ----- AMD Phenom II X2 555 BE "Callisto" xxxxx xxxx xxxx /// 4080MHz @ 1,375 V -----
    ----- AMD Ryzen "Zen" xxxxx xxxx xxxx /// TBA @ TBA -----

  8. #8
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    Quote Originally Posted by JasonDTM
    The GT is faster at Ultra speeds due to the memory timings, but the Ultra has more overhead to overclock ect.
    Anyone have any idea what the different timings are between the Ultra and GT?? Cause you can edit the timings in Omni right?
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    Quote Originally Posted by ed.howell
    Anyone have any idea what the different timings are between the Ultra and GT?? Cause you can edit the timings in Omni right?
    I don't think so, its always greyed out for me

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    Quote Originally Posted by HiJon89
    I don't think so, its always greyed out for me
    Yep your right, greyed out for me also.
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  11. #11
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    Read what the author of the topic said, he wants to know clocks of 6800 GT not discuss modding Ultra BIOS. I suggest you follow his wishes or go to another thread if you cannot respect that.

  12. #12
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    Quote Originally Posted by p4z1f1st
    guys, until now, just Playful_Buffalo answered my question like i wanted to

    btw Playful_Buffalo: what's that for a chick as your avatar?
    adriana lima

  13. #13
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    I can get 417/1150 but that's with BFG's kinda small single slot air cooler.
    Forums are the Opiate of the Masses

  14. #14
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    430/1100 for 24/7 (performance 3D) watercooled GPU and 1.4vGPU . I havent tried to check stability for everyday use above 430mhz but i think it can go further since card is benchable up to 460 with 1.4vGPU


    Edit : Gainward 6800GT (not golden sample)
    Last edited by XTCgr; 01-10-2005 at 06:36 AM. Reason: Forgot to mention brand

  15. #15
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    The BFG I temporarily have is very weird. IE - after flashing 1.4V to it, this is what happens:

    1) 3DMark2005 @ 420 MHz loop 1 hour = no problems. Performance increases accordingly.
    2) 3DMark2001 @ 415 MHz _INSTANT_ hard-lock of the system.

    This is with NV5 Silencer. I need to get some thinner bolts to mount my watercooling on it. This week
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  16. #16
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    Point of view 6800gt 256mb - running on 401/1150 24/7 on stock cooling. temps are 53c idle and 65c on load
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  17. #17
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    Gainward 6800GT AGP8X ( not GS ) @ 420/1150 1.4v stock cooling , 65'C full load running everyday

  18. #18
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    fastest on air i got a 6800 was 415/1100. this was stable for most games except hl2. with the gainward gs bios i gained ~70pts on 3dm05. i've had strange problems with 1.4v bios mod on my bfg card. with the 1.4v bios mod, i have a similar problem, will run through 3dm05 but locks on 3dm01 & games. only thing i can think of is possibly psu related. my system is near the max for my ocz520, i think under high cpu stress, there's not enough watts for the gfx card @ 1.4 and hence the lockup. the explanation could be simpler though, i read in a post on another forum that some of the newer (read this in october) 6800gt's can't handle 1.4v as well as their predecessors, possibly related to overheating of mosfets and/or lack of a 2nd molex which the ultras have.

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  19. #19
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    430/1250 MHz. Watercooled and flashed to 1.4V.
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  20. #20
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    POV 6800GT, running 400/1100 for daily use (flashed to 1.4V).
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  21. #21
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    pny 6800gt no mods / stock cooling

    can do 405/1130 forever ( benching sweet spot 410/1150)
    i run it at 400/1100 just looks better

  22. #22
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    XFX 6800GT @ nv5 silencer @ 420/1150 24/7 usage

    original bios still in it (1.3v)
    lol... This forum requires that you wait 70 seconds between posts. Please try again in 8 seconds.
    *phone rings*
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    Friend: My PSU just blew up, I think the second 8800GTX might have been too much for it to handle
    Me: what PSU was that again?
    Friend: Antec 480w
    Me:........

  23. #23
    Wimo
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    Point of view 6800GT 428/1140 24/7 stock cooler, stock voltage Giving it 1.4v only adds throttling ... I need a waterblock! With 1.5v this thing could fly

  24. #24
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    pov 6800gt bench at 410/1151 given enough air she'll do that in games. i use a slightly modded default heatsink (single slot). removed the fan and replaced it with a former coolermaster hhc-01 fan plugged into the nb-socket (running 8v). at 12v it handles the load just fine. anything post 410ish is not really stable. either lower mem and run 420 or keep it there...
    sky / s!p - we are oldskool, dammit.

  25. #25
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    Here my stable gaming speeds right now with watercooling, single 6800 Ultra. 1.5v.

    6800U 31.7K '01*15.8K '03*7.2K '05

    ...building a dual 254 rig on the MSI K8N Master2-FAR SLI

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