Well i just got a new mobo and proc i got a xp2500 barton 333 and a abit nf7s v2 and am using corsair twinx xms 2700 ddr. For the past 2 day i have tried to install windows 2k pro about 20 times or more and it keeps having errors saying it cant read a file i tried several disks and several cdroms with no luck so finally i lower the fsb to 133 and it seems to be working fine. My question is why is this happening if every thing i have is rated for 166 fsb am i missing something?