the 1:1 permanent pat was on teh asus p4p , but you need to flash an bios from another board, then another bios, only works in 1:1 and i seems to be only stable to 250Mhz or so, bit less i think, so is essentially useless unless you want something to go with a 3 or 3.2Ghz P4 as 245Mhz is quite good for them. Overall buying a 875p is best though, by far, as with all good intentions and buying roughly the best matches stuff you may find ram won't do that 1:1 , or your cpu will do way more fsb etc,etc.