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GTX 570 PPD has come done overnight...

Discussion in 'bit-tech Folding Team' started by SazBard, 18 May 2011.

  1. SazBard

    SazBard 10 PRINT "C64 FTW"

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    I recently started folding again because I purchased a GTX 570.

    Initially it was working at about 12-13k PPD, but I've noticed that last night and this morning it has dropped significantly to 6k PPD. Why is this? Is it just working on a tough WU at the moment or have I missed some setting out somewhere?

    I have set the CPU client to idle and GPU to low priorities, and just this minute I have just re-started the CPU client with SMP -3 flag to see if my cpu is hogging the GPU. But I don't think it is because everything was working fine for a few days at around 20K PPD.

    Cheers.
     
  2. Lankuzo

    Lankuzo CPC Refugee

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    Card may be running in 2d mode. Download gpu-z and see what speed your card is running at.

    I've not seen a work unit that tough on a gpu.
     
  3. SazBard

    SazBard 10 PRINT "C64 FTW"

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    Yep just downloaded it and it appears you are right... On sensors tab it says:

    GPU Core Clock - 405Mhz
    GPU Memory Clock - 162Mhz
    GPU Shader Clock - 810Mhz

    I've set the GPU clock to 775Mhz using MSI afterburner so I'm not sure why its so low!?
    How do i get it back up to speed.


    Cheers.
     
  4. Lankuzo

    Lankuzo CPC Refugee

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    Reboot
     
  5. RedFlames

    RedFlames ...is not a Belgian football team

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    ease off on the OC, the reason it's going down to 2d mode is because the card is over heating [or the drivers think it is], as lankuzo said it wont return to normal unless you reboot.
     
  6. SazBard

    SazBard 10 PRINT "C64 FTW"

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    I closed down the GPU client, and tried to start it up again but it wouldn't fold and kept informing me "Client Died".

    Anyway yes you are both right just done a reboot and it is back to normal PPD, however I don't understand why it would think it is overheating as it is sitting at about 75°C which is 10°C less than if I use the default fan profile and it was folding OK at that temp also...

    Ideally then what temperature should I be aiming to keep the GPU at?

    Thanks for the help :)
     
  7. Leroyingo

    Leroyingo What's a Dremel?

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    I run the smp client and 2 GPU clients on 2 x GTX 275 and every now and again they slow right down. No idea why, but yeah the reboot always gets them back on track.
     
  8. Lankuzo

    Lankuzo CPC Refugee

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    It's just your overclock failing. Try upping the volts or lower the clocks.
     
  9. SazBard

    SazBard 10 PRINT "C64 FTW"

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    Done. lowered to 750.
    Plus there is more drama. My CPU client went crazy and seemed to have stopped folding, on investigation it was only using 25% CPU. I added the -smp 4 and it seems to be OK again.

    Weird.

    Thanks all for your help.
     
  10. holzj17

    holzj17 What's a Dremel?

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    go into the nvidia control panel, then manage 3d settings, and change power management to 'prefer maximum performance'

    i have had to do that with my pc as it drops down to 2d clocks and ur ppd goes down the drain
     
  11. SazBard

    SazBard 10 PRINT "C64 FTW"

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    Done!

    Both GPU and CPU clients have been going great since... 19.5K PPD according to HFM.NET. I'm very chuffed but my GTX makes a horrible high pitched whining noise continually when it is working. Apparently this is a well known issue with some of them but trust me to get one that does it!
     
  12. Ph4ZeD

    Ph4ZeD What's a Dremel?

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    Very common issue. I've switched GPUs countless times but for some reason the original Crysis gets a whine out of all of them!
     
  13. Lankuzo

    Lankuzo CPC Refugee

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    My current card is the only one I've had that doesn't whine at all (had about 5 nvidia cards)
     
  14. Leroyingo

    Leroyingo What's a Dremel?

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    You need plenty of cooling to help stop the whining. If the cards are cooled well the fan speeds dont ramp up and theres less noise. I have an old CM830 case and have 2x 120mm fans directly over my cards to help them. Keeps the GPU fans at about 40% while running at max load folding.
     

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