No, it's not true. Actualy, you wont see anything at bios plug&play in bios setup. Even flashing to the latest bios, the Pcchips only let you change the fsb, and only to 112mhz. That informations only exist at the manual!
The only way to overclock in this "ChingLing"mobo, is closing the L bridges, like showed at tomshardware. Oh, and this mobo's are a hell of instable past 104mhz fsb. >(