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Nvidia Driver Bug Running CUDA Tasks - Page 3

post #21 of 31
Quote:
Originally Posted by Tex1954;14377438 
I will give them a try, but when I read about it on the BOINC website, they seemed to think it was a BOINC API problem. If it turns out it was really an Nvidia CUDA v4.0 driver problem (first released in 270x drivers), that would be great because all the projects won't have to recompile their tasks.

biggrin.gif

I tried to run the old 266.58 drivers and the new card didn't like it at all so i reloaded the previous one frown.gif
but i am trying to get around the core clock drop (witch is becoming a piss-off) by forcing constant voltage on the cores, so I'll tell ya if it helps smile.gif
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post #22 of 31
Thread Starter 
My 560 Ti cards had a one-off driver 266.58 that works just before the 270 and later versions were released. I'm using that now, but it doesn't do surround worth beans. I hardly use that mode anyway, so no real hardship...

It will take some time for Nvidia and the BOINC devs to catch this all up... I'm sure there is tons of hair pulling about it...

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post #23 of 31
Same problem here, only happens when running F@h I shut down the program and gpu clocks go to 405 mhz, apperently my gtx 295 does not clock down. Its a problem with nvidia drivers, I had no problem with 266.56 drivers.
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post #24 of 31
Thread Starter 
It is NORMAL for the video cards to downclock when not in heavy use. Even if you select the performance mode, they still "normally" downclock when idle. My 560's will drop from 950 to 401 to 51 if they aren't doing anything, but they jump right back to 950 when I start something.

Also, the driver I have was a special one-off driver to support the 560 when it was first released; or so I was told. I didn't get it the normal way in the normal downloads section on the Nvidia website...


Edited by Tex1954 - 7/29/11 at 6:28am
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post #25 of 31
mine downclocks when i overclock for some reason. seems like the card gets stuck in 2d mode or something.
    
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post #26 of 31
Quote:
Originally Posted by Tex1954 View Post
It is NORMAL for the video cards to downclock when not in heavy use. Even if you select the performance mode, they still "normally" downclock when idle. My 560's will drop from 950 to 401 to 51 if they aren't doing anything, but they jump right back to 950 when I start something.

Also, the driver I have was a special one-off driver to support the 560 when it was first released; or so I was told. I didn't get it the normal way in the normal downloads section on the Nvidia website...

hmm...i think the problem is, at least if haze's problem is the same as mine, is that when the GPU downclocks, it gets locked at 400 MHz. I have a little pop-up that says "NVIDIA Driver 2xx.xx has stopped working and successfully recovered" but the clocks on the cards stay at 400MHz, the only way to break them out of that is a complete system restart...i don't believe that is normal, and that's what i'm hoping these new drivers fix...since i installed them yesterday, i haven't had that issue at all so perhaps it's been addressed, or perhaps i've just been lucky over the last couple days...
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post #27 of 31
Thread Starter 
Well, couple things that may help you that I have discovered...

1) The tasks run better and I get zero lockups when I disable SLI. All my systems run with SLI off and Max Performance mode... and PhysX set to CPU.

2) If the cards get stuck, I set SLI enabled (max 3d mode), then disable SLI and that resets them without a reboot. But, I haven't had any problems with the older driver I am using now.


Edited by Tex1954 - 7/29/11 at 11:13am
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post #28 of 31
Quote:
Originally Posted by Tex1954 View Post
Well, couple things that may help you that I have discovered...

1) The tasks run better and I get zero lockups when I disable SLI. All my systems run with SLI off and Max Performance mode... and PhysX set to CPU.

2) If the cards get stuck, I set SLI enabled (max 3d mode), then disable SLI and that resets them without a reboot. But, I haven't had any problems with the older driver I am using now.

So I took your advice to heart, and i did disable SLI for my 275s. Not sure if that was what solved my problem, or if it was because of the new drivers. Either way, ever since i installed the new drivers 280.19 and disabled SLI, have had no lockups at all...i used to have them whenever i "snoozed" BOINC, and sometimes they would even lock themselves down to 405 without any provocation, it would just happen. I am leaning toward the disabling of SLI solving the problem however, because of my laptop.

my laptop card still locks down at 405 whenever i "snooze" BOINC'ing, or whenever i bring the laptop out of the screensaver...it doesn't matter much, as my laptop card doesn't produce jack for points...but just thought i'd share and let people know that these new drives might not fix that problem...
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post #29 of 31
Thread Starter 
Excellent! Haven't tried the 280 drivers yet... I may do that after BGB... maybe Nvidia fixed the CUDA interface problem...

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post #30 of 31
try running msi-afterburner and setting force constant voltage to on, it helps with the lockups
but if i manually change the priority of the task(s) it still happens
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