The new CUDA device and Boinc.


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Questions and Answers : GPU applications : The new CUDA device and Boinc.

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Robert P. Herbst
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Message 844148 - Posted: 23 Dec 2008, 12:57:02 UTC

I have found the new CUDA device is causing problems when used with the EVGA 9600GT Graphics card. There seems to be a file called NVLDDMKM that shuts down and recovers over and over again. Also, make note that if you have ANY GeFORCE GT cards in your computer, it would be wise to check the capacitors marked F277 1500 6.3 Volts. These capacitors have a nasty habit of rupturing out the top. The F277 470 1.6 Volts also rupture out the top but to a lesser degree. These capasitors look to be scored across the top to allow for such rupturing, but the cards fail when they do. I would suspect that if the capacitors were not scored, they might explode. Not a major explosion, but certainly enough to mess up the inside of your computer and any card next to it. This seems to be a consistent problem as I have replaced several cards so far over the last year, and the company is still using these capacitors. The card fails completely shortly after or during the rupturing.
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Message 844464 - Posted: 24 Dec 2008, 6:09:17 UTC - in response to Message 844148.
Last modified: 24 Dec 2008, 6:12:53 UTC

I'll tell you what.....I've been running CUDA for 4 days now, (Vista x64 GeForce 9800GT). The first 2 days all work units ran flawlessly, the last 2, a gradual procession of ever increasing crashes to the point where I'm lucky to get every other one completed, due to your above stated error. Obviously, some sort of degradation of something. If I've got blown caps on my card, I'm going to be major PO'd, this computer isn't even a month old yet.

Now I'm really curious, I'll have to pull it and look, even though it still runs fine as long as seti isn't. But it wouldn't surprise me if I've decreased the cards life span significantly...guess I'm done with Seti for awhile, we shall see.

By the way, good catch there Robert, great information. I thank you!

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Message 844466 - Posted: 24 Dec 2008, 6:13:00 UTC

I've had the same issue where the CUDA client ran fine for the first day or so then I started to get 'Computation Errors' and then Vista would report that the video driver is having problems.

I came in just now and Vista reported that it just rebooted and recovered from a BSOD :(

I'm running the latest nvidia drivers (180.48) on a 8800GTX.... soooo.. what gives??
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Questions and Answers : GPU applications : The new CUDA device and Boinc.

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