Neoseeker has published a review of MSI's K9A2 Platinum motherboard.

I was quite pleased with how well the MSI K9A2 Platinum overclocked - it managed to reach 270MHz HT speed stably; granted this is lower than the 300MHz the M2N32-SLI can reach, but it is very good for a Socket AM2 motherboard nonetheless.

As you saw from the charts, the 12x250 (3.0GHz) results were often better than the 11x270 (2.97GHz) results. Unlike Intel's FSB based architecture, the independent HyperTransport and memory channels mean that there is not an "all critical" FSB that must be tuned as high as possible. For AMD architectures, as long as the memory is running fast enough to feed the cores, the absolute core speed will be more important than the highest possible hypertransport speed.

MSI K9A2 Platinum 790FX Motherboard Review