Just to let you know that i am using the latest 6.6.2 BOINC client and the 181.22 WHQL Nvidia drivers. I am using dual GTX280 cards and with SLI disabled it uses both of the GPU's to do the WUs.

if i enable SLI, the PC will blue screen around every 40 minutes and from analysing the crash dump it's the Nvidia driver at fault.

So, all in all, i am finally very happy with the CUDA implementaion in BOINC and it seems to work very, very well !

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Intel Core i7 3930K (4.8Ghz) Watercooled
16GB Corsair Vengeance 1866Mhz DDR3 RAM
2 x 128GB Corsair Performance Pro SSDs RAID0
Asus Rampage Extreme IV Motherboard
OCZ Vertex 3 120GB SSD
Nvidia GTX670 2GB SLI

u dont have the stuttering windows problem? can you watch an entire movie on that computer without it lagging to bits whenever boinc finishes and starts a new workunit?

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The Vampire Lestat wrote:

... I am using dual GTX280 cards ...

Spend around 400 Euro for each card (+power supply 600W++) than you can do such thinks like
MeglaW wrote:

... watch an entire movie on that computer without it lagging ...

:)

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I have a 7600GT in a PCIe 4x slot to drive my monitor and an 8800 GTS in a 16x PCIe 2.0 slot, just for CUDA. It's a GIGABYTE EP43-DS3R motherboard.

For the most part, I think this works very well. I have not noticed any lagging issues, but I have experienced the screen "de-pixelization" and video lockups that have been mentioned in other threads (a nagging VLAR issue, I believe).

BOINC/Seti versions 6.4.5 and 6.08 and current Nvidia drivers.

edited: "works very well"...but NOT nearly as well as dual GTX280's would!

Martin