Forum > GPU crunching
GTX295 CUDA Issues
Richard Haselgrove:
--- Quote from: madmac on 28 May 2010, 05:11:50 pm ---Posted on Seti and got this reply...
--- End quote ---
From me. Flames to the usual address......
SciManStev:
It's somewhat comforting to know that others have had similar problems with their 295's. Mine played games great, and worked perfectly with the standard apps. Every time I switched to the optimized apps, all it did was crash work units left and right. This happened on multiple motherboards, PSU's and processors. Heat was never even close to being an issue. It is nice to learn that my card was most likely an older one that was made with this error. I didn't know that before I read this thread. My two GTX 480's are crunching like mad now, and with the faulty 295 out of the picture, all my problems went away.
One other symptom I was getting was that every time I tried to use a Killawatt meter to measurre power levels, the system crashed. I did upgrade my PSU, and it got a little better, but still during one of the regular screen blanking caused by the 295, it crashed me again. Now with the 480's, and an OC'ed CPU 980 at 4.2339 GHz, the system is very stable with the Killawatt meter running all the time.
Steve
Pizzadude:
--- Quote from: SciManStev on 29 May 2010, 02:31:39 pm ---It's somewhat comforting to know that others have had similar problems with their 295's. Mine played games great, and worked perfectly with the standard apps. Every time I switched to the optimized apps, all it did was crash work units left and right. This happened on multiple motherboards, PSU's and processors. Heat was never even close to being an issue. It is nice to learn that my card was most likely an older one that was made with this error. I didn't know that before I read this thread. My two GTX 480's are crunching like mad now, and with the faulty 295 out of the picture, all my problems went away.
One other symptom I was getting was that every time I tried to use a Killawatt meter to measurre power levels, the system crashed. I did upgrade my PSU, and it got a little better, but still during one of the regular screen blanking caused by the 295, it crashed me again. Now with the 480's, and an OC'ed CPU 980 at 4.2339 GHz, the system is very stable with the Killawatt meter running all the time.
Steve
--- End quote ---
Hi Steve, which Seti App. are you running and whats the average crunch time per work unit with your setup ?
SciManStev:
I am running SSSE3, and the larger units are completing in just over 9 minutes, with shorties completing in 2 minutes and maybe a few seconds. There seem to be several interim units that are completed in just over 7 minutes. Rarely I will get a unit that takes 10 minutes. With the 295, it was 11 to 14 minutes, and full of errors, regardless of overclocking either GPU or CPU. Current CPU clock speed is for the CPU 980, 4.2339 GHz, with GPU shaders at 1510, and memory at 1890. Temps are i46°C for GPU, and 49°C for CPU. There is a long way I can keep going as far as over clocking is concerned.
Steve
Raistmer:
Looks like you mix CPU and GPU apps.
There is no SSSE3-based GPU app. Akv8 SSSE3 is CPU app, and I hardly belive it can do task for only 9 mins even on i7.
On my Q9450 long task take ~2h of CPU while short one ~30min.
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