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Thread: GTX580: 1.025VID: 950/1900/2300: stock cooler: guaranteed?!?

  1. 03-30-2011, 05:54 AM #751
    Demo
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    Quote Originally Posted by CryptiK View Post
    Card needs 1.075v for 900 MHz

    My 'low voltage' comment was mostly directed at the CPU/Vtt/Vdimm rather than the card, but it's the lowest voltage I can set and have the card remain totally stable at 900.
    How/what do you test with to get the "totally stable" conclusion ?
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  2. 03-30-2011, 05:56 AM #752
    CryptiK
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    ^Yeah, yours is nice in terms of vgpu requirement, but it doesn't go much faster Just doesn't have the same effect as with CPU's in terms of clocks.

    3DMark 06 @ 4.50 GHz @ 1.330v



    3DMark Vantage @ 4.50 GHz @ 1.330v

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  3. 03-30-2011, 06:26 AM #753
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    Quote Originally Posted by Demo View Post
    How/what do you test with to get the "totally stable" conclusion ?
    Missed your post as I posted simultaneously. Crysis/Crysis2 for an hour or 2, couple of hours BFBC2 candy maxed, unigine looped checking for arti's, 03/05/06/Vantage/11 done repeatedly.
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  4. 03-30-2011, 05:31 PM #754
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    Im trying to see how far my GPU/Mem can go, sometimes I get like a quick flash of black screen from Crysis2 or a red lens flare effect from Heaven 2.5, too much GPU or mem ?
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  5. 03-31-2011, 12:12 AM #755
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    mem
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  6. 03-31-2011, 03:32 AM #756
    CryptiK
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    Colour distortions in my experience are shader or mem. GPU pushed too far used to get big spikes/depth of field and large colour planes but with modern architecture just lockups. Mem is what I'd look at first, but it could be the shaders too.
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  7. 03-31-2011, 04:11 AM #757
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    Cryptik, are your vantage score with ppu disabled?
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  8. 03-31-2011, 05:32 AM #758
    CryptiK
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    Yes, PPU disabled. Enabled would have a much higher CPU score.
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  9. 03-31-2011, 07:37 AM #759
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    I have my mem only at 2200Mhz, with Heaven 2.5 Mem was not even overclocked. just 900core, so im guessing shaders is the culprit.
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  10. 03-31-2011, 08:11 AM #760
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    Quote Originally Posted by CryptiK View Post
    Yes, PPU disabled. Enabled would have a much higher CPU score.
    so my limit those 2000 points gape is because of the cpu .... got it..... wich score do you have then with ppu enable? do you reach 38000?
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  11. 03-31-2011, 08:30 AM #761
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    Asus DCII 960@1.15V 100% fan 28*C Ambient



    970mhz second test crashed, tho 1.15v max with stock cooler and max voltage with stock BIOS, not bad at all
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  12. 03-31-2011, 08:45 AM #762
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    my card needs 1.025 to run 960mhz...
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  13. 03-31-2011, 08:45 AM #763
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    http://img600.imageshack.us/img600/4695/935c.jpg


    i have a bottleneck from cpu i7 920 C1 stepping 191x21 , that right ?
    Last edited by -R8-; 03-31-2011 at 08:48 AM.
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  14. 03-31-2011, 08:48 AM #764
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    no you are not , for 4ghz is good score.. try and rise up the vga speed ...
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  15. 03-31-2011, 08:55 AM #765
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    Thank you, I will try .
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  16. 03-31-2011, 09:16 AM #766
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    Quote Originally Posted by p3gaz_001 View Post
    my card needs 1.025 to run 960mhz...
    Sounds nice, show us your max AIR overclock and your Ambient and cooling PLS

    Edit: No need to show me, i saw last page 975-985mhz and 23*C MB and GPU idle .... hahahahah ...close your window child you gonna catch cold, i see 22*C GPU idle shoot
    Last edited by DStealth; 03-31-2011 at 09:24 AM.
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  17. 03-31-2011, 10:23 AM #767
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    yes, only a open window ... in air max oc was 960 with 1.138, now fo the same voltage i can bench at 990mhz :P
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  18. 03-31-2011, 11:59 AM #768
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    Quote Originally Posted by p3gaz_001 View Post
    no you are not , for 4ghz is good score.. try and rise up the vga speed ...
    Dear Sir ..
    There is no stability at all after the 938 volt 1150, Is it possible to be a problem from the power supply?
    I use the Zalman power of 750 watts with 8 +6 bin and use the additional link, these are:



    Sorry about the language
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  19. 03-31-2011, 12:17 PM #769
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    hi there!! should not be empty, there must be all 6 + 8 cables, no one should be empty, and 938mhz with 1.150 is really "confused"
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  20. 03-31-2011, 03:07 PM #770
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    That's an odd looking 6 pin PCI-E cable, it was my understanding they should be like so:

    +12v+12v1+12v (3 +12v lines)
    VSS VSS VSS (3 ground lines)

    That's how the PSU's with native 6 pin PCI-E cables are arranged. Might want to look into getting one with all 6 lines, or better yet a PSU with proper native support. It might not help your overclock though, some cards can't do 900MHz stable, so at 938 you are doing pretty well.

    Quote Originally Posted by p3gaz_001 View Post
    so my limit those 2000 points gape is because of the cpu .... got it..... wich score do you have then with ppu enable? do you reach 38000?
    No idea, I don't bench Vantage with it on.
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  21. 04-01-2011, 12:44 PM #771
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    edit.

    my card can manage 990mhz on the core & 2395 mem without using 1.150v .... i think is a lucky one...
    Last edited by p3gaz_001; 04-01-2011 at 01:36 PM.
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  22. 04-01-2011, 11:22 PM #772
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    Quote Originally Posted by p3gaz_001 View Post
    edit.

    my card can manage 990mhz on the core & 2395 mem without using 1.150v .... i think is a lucky one...
    that amazing !
    Can I get at a frequency of 950 of the voltage increase for 1150?
    I think I need voltage 1170 to reach this frequency, right?
    Can you help me with this?
    I have Asus GTX580 DCII .

    thank you .
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  23. 04-01-2011, 11:44 PM #773
    CryptiK
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    It may be possible with enough voltage, but you need to be able to keep it cool. If you are maxed at 938 @ 1.15v depending on how you card keeps scaling it may need more than 1.17v
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  24. 04-02-2011, 01:38 AM #774
    p3gaz_001
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    Quote Originally Posted by -R8- View Post
    that amazing !
    Can I get at a frequency of 950 of the voltage increase for 1150?
    I think I need voltage 1170 to reach this frequency, right?
    Can you help me with this?
    I have Asus GTX580 DCII .

    thank you .
    950mhz speed, is a speed that any 580 reference or not can manage, btw ... i still think that 1.170 for 950 is too much, when i was on stock cooling on my card, the max speed was 960/970 with 1.125 and 1.138, not with liquid cooling with the same voltage i can bench at 987/990 mhz, depending on the waterloop temp (got two loops! )
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  25. 04-03-2011, 03:23 PM #775
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    thanks evry one ..
    can help me hear :
    http://www.xtremesystems.org/forums/...d.php?t=269018
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