Interesting, a month ago AMD released the Athlon 200GE, an entry-level two cores processor running 3200 MHz released with a locked multiplier. As it turns out, the multiplier seems to be configurable by the motherboard BIOS, and with some MSI motherboards, that MP actually kicks in as configurable.
On youtube video about their findings on an Athlon 200GE that was overclocked already have been spotted, Toms Hardware as well used MSI motherboards with the new AGESA 220.127.116.11 bios. With that enable multiplier it was manageable to get a proper 3.9 GHz out of the two cores at a voltage of 1.4 volts. Athlon 200GE, by the way, has two cores and four threads.
Screenshot: Tom's Hardware
This, what seems to be a BIOS misconfiguration is certainly not some AMD will allow, and seems to be an error in the MSI bios. So do not expect this functionality with other motherboard manufacturers, and if you plan to purchase an AMD Athlon 200GE, now would be a good time to grab the BIOS and save it locally ;) as MSI will not offer support for this in the future we expect.
Once tweaked Athlon 200GE scored about 20 percent higher after the overclock was applied, and that is serious stuff for a 55 EUR/USD costing processor.