PI calculation challange, think you have fast PC?

Discussion in 'Processors and motherboards AMD' started by OrionRU, May 16, 2004.

  1. T_K

    T_K Guest

    Program : PiFast version 4.3 (fix 1), by Xavier Gourdon
    Computation of 10000000 digits of Pi
    Method used : Chudnovsky
    Size of FFT : 1024 K
    Physical memory used : ~ 61355 K
    Disk memory used : ~ 0.00 Meg
    ------------------------------------------------------------
    Computation run information :

    Start : Mon May 17 17:58:06 2004
    End : Mon May 17 17:58:54 2004
    Duration : 47.59 seconds
    ============================================================
    Total computation time : 47.59 seconds (~ 0.01 hours)
    ============================================================

    :) :) :) :) :) :) :)
    2nd place till now!! yeaa!
     
  2. JRS

    JRS Member

    Messages:
    44
    Likes Received:
    0
    GPU:
    Inno3d 6800GT @ 380, 1050
    Program : PiFast version 4.3 (fix 1), by Xavier Gourdon
    Computation of 10000000 digits of Pi
    Method used : Chudnovsky
    Size of FFT : 1024 K
    Physical memory used : ~ 61355 K
    Disk memory used : ~ 0.00 Meg
    ------------------------------------------------------------
    Computation run information :

    Start : Mon May 17 18:18:58 2004
    End : Mon May 17 18:19:40 2004
    Duration : 42.02 seconds
    ============================================================
    Total computation time : 42.02 seconds (~ 0.01 hours)
    ============================================================

    Gotta love 64bit CPU's!
     
  3. Xbrain

    Xbrain Master Guru

    Messages:
    564
    Likes Received:
    0
    GPU:
    Radeon HD 6950
    Program : PiFast version 4.3 (fix 1), by Xavier Gourdon
    Computation of 10000000 digits of Pi
    Method used : Chudnovsky
    Size of FFT : 1024 K
    Physical memory used : ~ 61355 K
    Disk memory used : ~ 0.00 Meg
    ------------------------------------------------------------
    Computation run information :

    Start : Mon May 17 15:02:51 2004
    End : Mon May 17 15:04:02 2004
    Duration : 70.61 seconds
    ============================================================
    Total computation time : 70.61 seconds (~ 0.02 hours)
    ============================================================
     
  4. John

    John Ancient Guru

    Messages:
    16,764
    Likes Received:
    12
    GPU:
    GTX 970
    Program : PiFast version 4.3 (fix 1), by Xavier Gourdon
    Computation of 10000000 digits of Pi
    Method used : Chudnovsky
    Size of FFT : 1024 K
    Physical memory used : ~ 61355 K
    Disk memory used : ~ 0.00 Meg
    ------------------------------------------------------------
    Computation run information :

    Start : Tue May 18 15:49:22 2004
    End : Tue May 18 15:50:04 2004
    Duration : 41.86 seconds
    ============================================================
    Total computation time : 41.86 seconds (~ 0.01 hours)
    ============================================================
     

  5. Xelorz

    Xelorz Master Guru

    Messages:
    882
    Likes Received:
    0
    GPU:
    BFG Tech 7900 GS 256MB
    Program : PiFast version 4.3 (fix 1), by Xavier Gourdon
    Computation of 10000000 digits of Pi
    Method used : Chudnovsky
    Size of FFT : 1024 K
    Physical memory used : ~ 61355 K
    Disk memory used : ~ 0.00 Meg
    ------------------------------------------------------------
    Computation run information :

    Start : Tue May 18 14:46:55 2004
    End : Tue May 18 14:47:51 2004
    Duration : 55.81 seconds
    ============================================================
    Total computation time : 53.81 seconds (~ 0.02 hours)
    ============================================================

    At current clock speeds. But I can do 2.4Ghz on 1.9 if I need to ;)
     
  6. THunDA

    THunDA Ancient Guru

    Messages:
    2,739
    Likes Received:
    1
    GPU:
    Powercolor x1900xtx 675/783
    Was running 220*11.5 ..11-2-2-2 for the test..


    Program : PiFast version 4.3 (fix 1), by Xavier Gourdon
    Computation of 10000000 digits of Pi
    Method used : Chudnovsky
    Size of FFT : 1024 K
    Physical memory used : ~ 61355 K
    Disk memory used : ~ 0.00 Meg
    ------------------------------------------------------------
    Computation run information :

    Start : Wed May 19 01:17:22 2004
    End : Wed May 19 01:18:06 2004
    Duration : 44.55 seconds
    ============================================================
    Total computation time : 44.55 seconds (~ 0.01 hours)
    ============================================================
     
  7. WildStyle

    WildStyle Ancient Guru

    Messages:
    15,306
    Likes Received:
    20
    GPU:
    MSI GTX 970
    Program : PiFast version 4.3 (fix 1), by Xavier Gourdon
    Computation of 10000000 digits of Pi
    Method used : Chudnovsky
    Size of FFT : 1024 K
    Physical memory used : ~ 61355 K
    Disk memory used : ~ 0.00 Meg
    ------------------------------------------------------------
    Computation run information :

    Start : Wed May 19 20:33:45 2004
    End : Wed May 19 20:34:42 2004
    Duration : 57.22 seconds
    ============================================================
    Total computation time : 57.22 seconds (~ 0.02 hours)
    ============================================================

    (Not finished playing with my overclocking yet though, ;))
     
  8. John

    John Ancient Guru

    Messages:
    16,764
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    12
    GPU:
    GTX 970
    OT: Wildstyle, dude, I see you're limitied to 194 FSB. Have you tried the L12 mod? I'm almost 90% sure that would help you, alot!
     
  9. WildStyle

    WildStyle Ancient Guru

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    GPU:
    MSI GTX 970
    OT #2: No I haven't yet, actually. You reckon it's the CPU then? I was kinda thinking it was the board, 'cause all the CPU's I've had, and all the NF7-S v2's I've had, were limited to 194FSB all the time.

    You know there's this thing that distinguishes 'good' NF7-S v2's from 'bad' ones, well mine has parts of both.....

    Good: plastic dimm slot levers, mosfets down where they should be.
    Bad: metal level for cpu, not plastic, different shade of colour, some weird ass plastic CPU cooler (like the one on the abit kt600 board.)

    I'll try the mod sometime, like I was intending to, but ATM, I don't really feel like rebuilding my whole PC again, after having to take it all apart to get to the CPU.

    Also do you think the PSU would have an effect on the FSB? As in, if there wasnt enough power, it would cause a lower FSB?

    Thanks for the advice though! :thumbup:
     
  10. John

    John Ancient Guru

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    12
    GPU:
    GTX 970
    Well, as I've mentioned somewhere before, I believe it's not entirely up to the chip, but also to the mobo. I believe that the NF7's somehow use different timings for the different default FSB speeds, so if you have a 133 chip, it use one type, and other typs for a 166 chip, if you get me. Though, it seems to differ from chip to chip, which is weird, 'cause normally the chip itself should not affect the FSB at all, as the front side bus only relies on the motherboard/memory. Anyway, your board is supposed to reach atleast 200FSB (rev 2.0, anyone?), and the "new" boards aren't all THAT much worse than the "old" ones,most of them seem to reach atleast 220FSB.
    So no, I don't think there's anything wrong with your board, and I'm sure the L12 mod would do wonders for you. Just read around on some forums, it has done wonders, especially for the tbred owners.

    As for your power supply; I presume you've measured your voltages? Atleast with some software prog? If they're good, you're settled.
    But yeah, low voltage readings, especially on the 3.3v rail, can indeed cause a lower FSB.
     

  11. WildStyle

    WildStyle Ancient Guru

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    GPU:
    MSI GTX 970
    Yep Yep, my rails are fine, in fact my 3.3v is dead on.
    Just wondering about the PSU though, cuz after I put my 9700Pro in, I couldn't use 200FSB anymore. It's so weird..... when I had my Ti4200, I could do 200x10 @1.675v on my old chip, then as soon as I replace Gf4 with 9700, it's unstable and I have to revert to 194 as that's the max it'll go now! So that's why i thought it might be the PSU, cuz the raddy would use more power than the ti4200. :confused:
    Oh, and jsut for the record, I don't think my mem is the cause of the prob, as it has no memtest errors @200fsb, and ive upped voltage to it, and loosened timings for it @200fsb, but it still wont do it, so can rule out mem as the cause of the prob.

    Thanks for reply, knowledgable as ever! ;)
     
  12. John

    John Ancient Guru

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    GPU:
    GTX 970
    Huh, weird, I've seen that happen before though. No idea why it would do that, the NF7's are really really weird sometimes ;)
    The 9700 shouldn't use that much more power than your GF4, a bit, but not that much, so I doubt that's the problem.
    Well, try the L12 mod and see, I'm sure you could improve that pifast result quite a bit with a higher FSB :)

    Edit: Oh, and your mem should be fine, generic twinmos is quite good. Just helped my mate overclock his tbred b 1800+, and it did 2300MHz @ 220FSB (aboutish), with the same board and ram as you. I flashed his board with a tictac bios, though. And the L12 mod was of course in place ;)
     
    Last edited: May 20, 2004
  13. WildStyle

    WildStyle Ancient Guru

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    GPU:
    MSI GTX 970
    Yeah I'll give it a go @some point. Thanks for the help.

    BTW, this thread is waaaaaaaay off topic now, BUT what RAM are you getting? Or don't you know yet?
     
  14. John

    John Ancient Guru

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    GTX 970
    hehe, as long as it's about "getting better pifast times", it isn't that much OT :D
    I'm getting a dual channel pack of OCZ EB Platinum PC3500 (2x512MB), just need some more cash first.
    Edit: updated my previous post
     
    Last edited: May 20, 2004
  15. WildStyle

    WildStyle Ancient Guru

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    MSI GTX 970
    Yep, saw it.
    Oh one last question before I go to bed, (lol, it's mornin here now), do you think BIOS version would have an impact on FSB at all? Because I'm using the one that came with the board, and I have no idea what version it is...
     

  16. John

    John Ancient Guru

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    GPU:
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    Yes, it does. It can impact your results quite a bit actually. Besides, memory bandwidth is much improved in the new bios releases.
    I recommend the tictac modded bioses, really great stuff!
     
  17. Xeroxks

    Xeroxks Master Guru

    Messages:
    289
    Likes Received:
    0
    GPU:
    Gainward 7600GT goldensample pci-e
    Program : PiFast version 4.3 (fix 1), by Xavier Gourdon
    Computation of 10000000 digits of Pi
    Method used : Chudnovsky
    Size of FFT : 1024 K
    Physical memory used : ~ 61355 K
    Disk memory used : ~ 0.00 Meg
    ------------------------------------------------------------
    Computation run information :

    Start : Sun May 23 19:44:16 2004
    End : Sun May 23 19:45:09 2004
    Duration : 52.88 seconds
    ============================================================
    Total computation time : 52.88 seconds (~ 0.01 hours)
    ============================================================
     
  18. OrionRU

    OrionRU Ancient Guru

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    GPU:
    EVGA 8800GTX (621/1512/2020)
    this is odd, we have same Freq, I have Tbred you have barton and I get 1 faster score.

    How come?
     
  19. WildStyle

    WildStyle Ancient Guru

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    MSI GTX 970
    Correct me if I'm wrong but you're running an FSB of 220? And he's running 200 I expect.....
     
  20. OrionRU

    OrionRU Ancient Guru

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    Ah, tha explains it :D
     

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