I have just installed a Tesla C2050 our research group has received in NVIDIA Professor Partnership Program. But it does not seem to work correctly, it freezes every time I start specific programs, while others seem to work correctly. I tried to collect every data that could be relevant. If something would be still missing, please just ask me. I have also attached a photo about the computer (with side opened), a close-up about the GPUs, and photos about 2 different BlueScreen Death, it might help. Every need is very much appreciated, please help me!
Computer: Custom Assembled
Motherboard: ASUS P6T SE
Processor: Intel Core i7 975 Extreme (no overclocking)
Memory: 6x2 GB GEIL DDR3 (PC3-14400U)
Power supply: Chieftec 750 W
GPU: NVIDIA GTX295 1.8 GB (slot 1) + NVIDIA Tesla C2050 (slot 2)
OS: Windows Vista Business x64 SP2
Driver: NVIDIA 260.81 (Tesla version, SLI disabled)
CUDA Toolkit: 3.2
CUDA SDK: 3.2
And finally what I have found about it until now. When using e.g. fluid (DirectX), everything works fine (Computing on: C2050, Display on: GTX295). When using nbody, usually after 10 s everything freezes (no cursor movement, no ctrl+alt+del), and in 50% percent I have to restart the computer, in 50% the BlueScreen appears. DeviceQuery works fine. I have also tested other programs (the included DirectCompute ones). All of them run fine on the GTX295, but when changing to the C2050, all of them freeze and the computer collapses. Another interesting detail was that only for a few seconds, but I measured around 366 GFlops with the C2050, while the GTX295 measured 400-460 GFlops (strange). I have tested the programs both with ECC on and off.
I have also tested the GPUs with Sisoft Sandra, it has never collapsed (nor on CUDA, OpenCL or Shader language). But in some cases the performance seemed to be suspiciously low. It almost never performed on the top between the different GPUs. We also measured the temperatures with a thermo-camera, the average temperatures were 55-65C on the surface of the cards (usually on the metal plates, or close to them).
I hope there will be some kind of solution for this problem and we can start using the Tesla card! We already have it now for two months, but I’m starting to loose my trust in it as I simply cannot use it :(.
Thank you for your help in advance! Yours sincerely: Xoranus