None of the review sites that tested with Single Core found any problems with the A8R32-MVP, including us. However, I did further testing and there are certain situations where you can generate stutter with an x2 processor on this board - in particular with BF2.
Before this gets out of hand, we have worked closely with Asus and got them invloved with the issue. It has now been corrected.
1) Many problems were reported by users who had NOT installed the AMD x2 patch availabel for download at AMD. Install this patch.
2) Use Catalyest Drivers 6.3, just released yesterday, March 7th.
3) Asus has released a new BIOS called 311 that will post on the website "soon". This is a release BIOS, and not the BETA that DH, ourselves and others were testing earlier. It appears to completely correct the issues. If you can't wait for the BIOS to publish at Asus email me and I will send you the 311 BIOS. Perhaps someone could host if it's needed.
We all jumped on this quickly and got it fixed because these kind of posts have a way of becoming "truths" even when they are not 100% right. DH and others are reporting the issues are fixed with the earlier BIOS update, and those changes are incorporated in this release version.