I have an AMD 720 X3 machine running at 3.4 ghz with 4 GB of memory & an MSI GTX460 video card. Using MSI Afterburner 2.0 I run the video card core clock at 800 mhz which means the shader clock runs at 1600 mhz. The 800 mhz is a slight increase over the stock 780 mhz. The card will not run overclocked at 810 mhz. My drivers have been version 260.99. All worked great so I just HAD to fix it. Today I downloaded & installed the version 275.33 drivers. After the install of the new drivers Afterburner reported my core clock at 405 mhz which set my shader clock at 810 mhz. The speed reduction was very noticeable. So I uninstalled the latest version and restarted my machine. After the restart Afterburner reports my core clock back to 800 mhz & the shader clock at 1600 mhz. But my driver version is now 266.58 which is a version I tried earlier but uninstalled also because somehow it messed up my desktop. But now my desktop is normal and my processing times are back to their normal speed.

I am posting this in hopes it might save others the effort I had to go thru.

I'm enjoying the double credits. Thanks to the support staff for that!

Dave

Hmmm... Maybe I should have read this before I installed 275.33??

I had been noticing that my GTX 550 ti was only reporting about 730mb of ram (vice 1,000) during Boinc startup, and after looking around on the internet, discovered that this was a known problem with this card and CUDA. NVIDIA was supposed to have been working on a fix back in March, so I figured I would install the latest drivers and see what happened.

OOps... Boinc startup now says 961mb (much better), but when running MW it now seems to eat-up a full CPU core ((i.e. 8pct of system on my 980x)) to do a GPU unit...???

Anyone else noticing this kind of behavior??

I tried 275.33 a few weeks ago and the performance is terrible with MW. They work OK with Seti opti apps, but MW apps haven't been updated to work with CUDA v4. You need to roll back to 26x.xx drivers, don't think any of the 27x.xx drivers will work well with the current MW apps.

Hm?

I'm using 275.33 on my P4 system with an OC'd GTX 460 and it's using 0.05 CPU cores (says so in BOINC, says so in Task Manager) and tasks are taking no longer than usual. In fact it's running a lot smoother for me!

Perhaps this is just me, as I have a rather anachronistic system.

---

Interesting. On mine I don't think it used any more CPU and didn't get any downclocking, but GPU utilization is a straight line at 97-98% with 266.58 but a zig-zag in the 40-50% range and took twice as long to complete with 275.33.