This correspondence from ASUS support is of interest: >Sorry for the delay in response. You can only run the K6 233 if you >have a board which can support the 3.2V dual plan voltage. These >boards are usually revision 3.1 or later. You can find your revision >number on your board. It will be written in silkscreen lettering and >be located next to the model identification number. But to make sure, >your board should have a sticker on it that tells you that the board >is 3.2 ok. ... >Jiyuan Wu >ASUS Technical Support USA >[log in to unmask]