I think you’re waiting for the solution how to unlock the fixed multiplier. It is not impossible to change the multiplier but it’s really hard work, because the main problem is to insert a curcuit between RESET#, IGNNE#, A20M#, LINT0 and LINT1 without jamming the signals. It seems to be impossible but you may have a look how remarkers do it. See here for more information. The links i made to some great articles will tell you all you need to know how to solve the problem, but i want to add a comment: I’m the possessor of an older PII-300 SL2W8 Costa Rica CPU which seems to be the first Intel CPU with the locked multiplier. This processor runs fine at 112MHz x 4,5 but i’ve noticed that my PC booted up several times with a higher frequency without changing something – like FSB. The multiplier changed to 5x instead of 4,5x and 5x was jumpered on my Mainboard !!! So it’s highly probable that the multiplier can’t be hardwired.