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*** F@H Tech Assistance Thread ***

Discussion in 'Folding@Home' started by BUCK NASTY, Jul 10, 2009.

  1. stanhemi

    stanhemi New Member

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    i'm using a 4870 1g now and my ppd is at 2800-3800,yes ati need more cpu usage than nvidia.
    are you using gup-z to check your gpu load,when i set (FLUSH_INTERVAL, BROOK_YIELD, CAL_NO_FLUSH, CAL_PRE_FLUSH) my gpu load drop to 60% (don't remember exactly which one causing this)
    :toast:
     
  2. krusha03

    krusha03

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    Yeah my GPU load is 99% where as CPU load dropped from 50% to varying between 2-10%. I think you should experiment with the FLUSH_INTERVAL value to see when you are getting full GPU load. For me it was 128, 192 or 256, but i have read that putting it above 200 could lead to stability issues.

    On a side note my X2 is really bad at folding so i may do some crunching with it, but what i have noticed is that even if i do something like browsing the web it will lead to PPD drop. I am yet to try out the "Set CPU Affinity and Priority" program thing, but will see how it works out and post here again.
     
  3. theonedub

    theonedub habe fidem

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    Im a little confused, should I be using the SetAffinity program to make sure the FAHcorexx.exe programs have access to all cores or just one? Default they are using 1, I use the program to set it to all 4.
     
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  4. stanhemi

    stanhemi New Member

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    only 1 core :toast:
     
  5. mike047 New Member

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    Never set affinity on my Nvidias.
     
  6. theonedub

    theonedub habe fidem

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    Im seriously confused. I just want to make sure that everything is being used to its fullest. It seems like I am only getting 2.5-3k ppd which has me thinking I have F@H setup incorrectly.
     
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  7. mike047 New Member

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    Are you running console client??
     
  8. theonedub

    theonedub habe fidem

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    I downloaded the file named : Folding@home-Win32-GPU_Vista-623

    Installed along with Fahmon. I do not know what the console version is exactly. Yes I have the console version installed.
     
    Last edited: Aug 8, 2009
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  9. mike047 New Member

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    I have never run Vista, so I can't say anything about it.

    If you are using the 600w psu I sent, set your shader overclock to 1750. IIRC, when I ran 3 9600gso cards in one box, I got 9k+ avg@1750 shader. 24/7
     
  10. theonedub

    theonedub habe fidem

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    Alright, will boost shader clock today. Its going to be my first heat test on this card, will see how it handles 95F heat w/ no AC.
     
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  11. mike047 New Member

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    I was about that here when I ran them, if it starts getting hotter than you like...put a box/floor fan blowing on it.
     
  12. theonedub

    theonedub habe fidem

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    Will do, hopefully all these fans in this Azza Fantom case do their work.

    Its 87F right now, the Q6600 is at 63/58/57/56 and the 9600 is at 74C (511pt). For the first time the exhaust air is actually noticeably warmer than ambient air. Going to add 2 more 120mm fans as soon as they arrive in the mail.
     
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  13. theonedub

    theonedub habe fidem

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    It got to 97F today, the GSO hit 80C and my CPU 68/62/61/59. I will let it keep crunching but it looks like on 97+ degree days there will be no folding from 12noon to 6pm for safety.
     
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  14. BUCK NASTY

    BUCK NASTY F@H Mod & 4P Enthusiust Staff Member

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    Those GSO's are resilient little cards. I've had them over 90c consistently during 511Pt WU's, even with the fans @ 100%. Guess those overclocks create a little heat?;)
     
    Crunching for Team TPU More than 25k PPD
  15. theonedub

    theonedub habe fidem

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    Yeah they sure do create some heat. I will see how hot it gets tomorrow with 100+ temps.

    Once these fans get here one will replace the low CFM rear exhaust and the other will be a new intake at the bottom of my case. Trying to get sufficient cooling while keeping the side panel on. Box fan is my last resort.
     
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  16. mike047 New Member

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  17. theonedub

    theonedub habe fidem

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    So I got this GTX 260 216 up and running and the temps are ok. So far 70C on a 511 w/ fan speed @70% (90F outside no AC). The only thing I am curious about now is my 12v voltage. According to HWmonitor my idle 12v is 12.35 which drops to 11.97 absolute lowest so far under load (quad crunching as well).

    Im still within 5% so I think I am alright, just want to double check though.

    Side note, this 260 @ stock is crushing WUs.
     
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  18. mike047 New Member

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    You're good.
     
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  19. MoonPig

    MoonPig

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    Two questions:

    Is there a big PPD difference between a GTX260 and a GTS250 ?

    Would an 8400GS be worth folding with? (May have to setup a dedicated computer for it unless i can get it to work alongside a GTX260 or GTS250.

    Thanks
     
  20. theonedub

    theonedub habe fidem

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    Moonpig-

    I would say only run the 8400 if it can work with either the 260 or 250, with 8 sps it would be a little bit of a waste to run in a dedicated rig.

    It's my opinion that just by going off stream processors, the 260 (192/216sp) would be much better than the 250 (128sp). Just for a little example, my previous 9600GSO (96sp OC) would get 3500ppd on a 1888pt WU, my 260 (216sp stock) gets 7000ppd on the same WU.
     
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  21. MoonPig

    MoonPig

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    Right, i dont think i'll use the 8400GS for folding then. Maybe as just a dedicated PhysX :p

    I'm going to slowly collect parts for a dedicated folder. Got an AMD Board with two PCI-E slots and a CPU to match.

    When next electricity bill comes through, ill see what effect no folding has had compared to folding. Then i'll get started again!
     
  22. theonedub

    theonedub habe fidem

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    Yeah, my electricity bill arrived a couple days ago... turns out these computers folding and crunching really do make up for not running the AC. Not a huge issue though- think I will get through it.
     
    Crunching for Team TPU
  23. El Fiendo

    El Fiendo

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    Yea, my electric came for ~200. Not too bad, but part of the reason why I'm turning 3 rigs into 2. Should warm my basement in the winter though, so thatll be nice.
     
  24. thebluebumblebee

    thebluebumblebee

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    Is it really worth it for 14 shaders? (unless you have the DDR2 versions of the 9600GSO)

    I keep referring back to this posting that Buck did. Remember that the GTS250 is basically a GTX9800+.
    It would be nice if that list was kept updated and maybe showed values for the 1888pt WU's. (hint, hint Buck). Maybe move it to its own home?
     
    Crunching for Team TPU More than 25k PPD
  25. theonedub

    theonedub habe fidem

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    I have a 9800 GTX+ that should be arriving today. If Buck doesn't get the numbers up I will see if I can get some from it.
     
    Crunching for Team TPU

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