Hi all, I'm currently running three 8800gt with Nvidia System Tools to monitor the CPU and GPU temp and usage. In BOINC I see three separate process of cuda so I'm assuming it's running on all three 8800gt. However, on the Nvidia System Tools, it only shows that two of the three GPUs are doing work. The third one shows 0% for both usage and FB usage. This hints that the 3rd card isn't doing work and this is supported by the temperature reported - the 3rd card also has a lower GPU temp. And this 3rd card with the lower GPU temp is the 2nd card that is in one of the SLI slots. So any one has any clue? Or is it my card just has a lower current leakage...

Are you sure that the driver/s is/are installed well for all GPUs?

Look in Windows TaskManager (press [CTRL] + [ALT] + [DEL]) if you see 3 times the CUDA app.
You let run stock, so maybe something like MB_6.08_CUDA_..exe .

If you see three entries and one GPU temp is very low..
Hmm.. reboot of the PC and look if it continue.

Normally if BOINC see all GPUs, they should be used.
If you don't have in the messages something like ('not used'..) in the GPU line.

Maybe you could post the first messages of the BOINC Manager?
To the line the first few WUs started and finished to crunch.


For to increase the performance of your PCs..
Small look in my -> <- (quick instruction).

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You could test if it would help if you extend the WindowsDesktop to all 3 GPUs.
Maybe also, the color and resolution to the minimum.

You let run Win7..
AFAIK, with WinVista you need 'VGA dummies' in all GPUs pluged that they crunch well.

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Maybe additonal for to test..

Normally SLI should be disabled for CUDA.
But AFAIK new nVIDIA_driver do this automatically.

For example enable/disable PhysX if you see something different.
Normally not needed to be enabled for CUDA.


Now I'm out of ideas..

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