The cards are plugged in properly. When I isolated 1 card in the system I found 1 of the 2 cards failing. I returned it for a new one. Last friday I worked on both cards at the same time, no problem.
When I try to render today, I get 1 card failing again. The new one (in the 2nd PCIE connector).
I ...

There seems to be a lot of error 999: unknown internal error


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Started logging on 26.02.13 15:19:48
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CUDA error 999 on device 0: An ...

I tested a little more, and it seems the problem only happens when I use my second card.
Are there any known problems where only the main card used by the OS works without a problem?
Otherwise I will need to switch out both cards and I want to delay that as much as I can.

Since yesterday I have a new rendering system consisting of the following hardware:

i5 3570
2x EVGA 660ti
12gb ddr3
samsung 840 series ssd

I have SLI disconnected and disabled.
The installed Nvidia driver is 314.07 with CUDA toolkit 5.0


The problem I have is that the cards randomly fail. If i ...

With the announcement of the final v1.0 version i couldn't help wondering what will happen to the beta version i have.
I bought this beta license about 2 months ago, with the idea I could use Octane for quite some time. (I'm just a simple student, so I do not really have a lot of budget for ...