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Why is my eVGA GTX 480 SC only getting 16176 PPD?

post #1 of 37
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My eVGA GTX 480 SC is overclocked to 905 Core/ 1810 Shaders/ 1940 Memory with 1.138v and I am only getting 16176 PPD on P6806 WU's. My TPF is 1:12 and that is when I am not running any other Clients. I'm on the stock cooler but I am using some colder air from outside blown straight into my computer so my GPU is sitting at 48c. I don't want to go much higher on my OC as I have already fried two other cards before this one. Please enlighten me on this matter. Also I noticed that if I have my SMP and GPU2 clients running (also does this with just my SMP client running alone with the GPU3 client) that my 480 doesn't run at 99% but rather it jumps up and down between 99% all the way down into the 40% range. I tried using the SMP 7, SMP 6, and finally the SMP 5 flags and only when it is on the SMP 5 flag will it fold at 99% with the other clients running. I have also changed priorities on all of my clients putting my SMP client to below average and putting my GPU3 client at above average. I'm at a loss because before these new WU's I was getting close to 20k PPD from this card (19215 to be exact). Any and all help would be appreciated. I also suspect that my CPU might be weak or going out on me. I plan on replacing it with taxes or if my Intel Retail Edge Program goes through then I will get a 970.
post #2 of 37
You sure it is stable at 905/1810? I know it is a SC version but sometimes those see F@H and need to be adjusted. It should not be jumping up and down in usage.
I am getting that same PPD with a 1550 shader clock & smp 7/8 both leave the GPU usage at 99%.

Try playing around with your affinity also check if anything else is trying to use the CPU in your task manager.
>.<
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post #3 of 37
don't most 480s get about 16k?
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post #4 of 37
Quote:
Originally Posted by reflex99;11699349 
don't most 480s get about 16k?

With 6806 all you need is a 1550 shaders for 16k PPD, the rest of the units you need 1600 shaders.
But OP has it up to 1800 which should get him at least 18k PPD.

It is a usage problem, not sure what it is though, an i7 is plenty for 1 480.
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post #5 of 37
mines 830/1850... getting 15K.... just a comparison

it varies, though
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post #6 of 37
The vrms on that card are probably still getting toasty. The vrm cooling is pathetic on the stock cooling, I figured this out today installing my waterblock.
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post #7 of 37
Quote:
Originally Posted by KOBALT;11699417 
mines 830/1850... getting 15K.... just a comparison

it varies, though

That doesn't sound right, is your GPU usage 99% without jumping up and down?
Cause that is the OPs problem you might have the same issue.
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>.<
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post #8 of 37
Also another thing, I have noticed you get more PPD when your computer monitor is off and you're not using your computer. Since your GPU doesn't have to output anything out to the screen.
post #9 of 37
Quote:
Originally Posted by LiLChris;11699433 
That doesn't sound right, is your GPU usage 99% without jumping up and down?
Cause that is the OPs problem you might have the same issue.

See GPU1

48099.jpg

Like I said mine varies depending on WU.... sometimes it's 18K sometimes its 14K... P6806 now

Not thread stealing.... just adding my input with similar hardware to help resolve your issue smile.gif I'm content with mine
Edited by KOBALT - 12/18/10 at 11:49pm
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post #10 of 37
You have 1660 shaders not 1850. wth.gif
Edited by LiLChris - 12/18/10 at 11:51pm
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>.<
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Hard DriveOSMonitorPower
x25-M SSD 80gb + 1TB F3 + 2x2TB WD Green Win 7 64bit Viewsonic 20" + Samsung 40" Corsair 1000w 
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