Look around the overclocking forum, there's a huge thread on Thoroughbred-B overclocking. 98 % of those CPUs can make it past 2.0 GHz in a breeze.
Those guys are just trying to cheat gubile overclocker wannabes off their money.
I don't think AMD would appreciate if they found out, there used to be a big market for remarked 486 & 586 back then, CPU manufacturers, along with interpol closed the chip remarkers for good.
Overclocking a chip on your own is nobody's business, but selling a remarked or modified overclocked CPU is not only bad, it's illegal.
Fok Speling Misstake